JP6608347B2 - GAME CONTROL METHOD, COMPUTER AND CONTROL PROGRAM - Google Patents

Description

  The present invention relates to a game control method, a computer, and a control program.

  In recent years, servers that provide games to mobile terminals via communication networks have become widespread. As a game provided by such a server, a game in which a plurality of players can participate (so-called “social game”) is known. In the social game, in order to acquire items used by the player in the game, for example, a prize acquisition game (so-called “gacha gacha (registered trademark)”) is executed. The prize acquisition game is a game in which a prize selected by random lottery from a plurality of prizes is given to a user.

  Patent Document 1 describes a server device that provides a game using a game medium to a terminal device of a player via a network. The game medium is electronic data used by the player for the progress of the game. Upon receiving a game media acquisition request from the terminal device of the player, the server device selects and selects a winning game media from the game media stored in the deck assigned to the player according to a predetermined lottery algorithm. The game medium is the game medium owned by the player and is deleted from the deck.

Japanese Patent No. 5474237

  In general, each player makes a game medium acquisition request for the purpose of acquiring a game medium as a centerpiece of game contents included in the deck. In the game system of Patent Literature 1, each player can surely acquire a game medium as a main feature by acquiring all the game media in the deck. Even if the game media that will be the main feature is not won, the winning game media will be deleted from the deck, so that the winning probability of the game media that will be the main draw in the next lottery will be high. However, if only one game medium is reduced from the deck for each lottery, the winning probability of the main game medium becomes monotonous, and the player's expectation for acquiring the main game medium is sufficiently improved. I couldn't let you.

  The present invention has been made to solve such a problem, and provides a game control method, a computer, and a control program that can improve a player's expectation for acquisition of a specific game medium. Objective.

A game control method according to the present invention is a game control method in a computer that includes a storage unit and executes a game that stores a game medium in association with a player, and a plurality of game media as game media that can be stored in association with each other in the game Is stored in the storage unit, a game medium is selected from a plurality of game media according to a request from the player, the selected game media is stored in association with the player, and stored in association with a request from the player. In the next selection according to the request from the player according to the number of times the game medium is selected again from a plurality of game media including the same type of game media as the game media and the game media is selected according to the request from the player. Changing the probability that a particular game medium among a plurality of game media is selected.
Note that the computer is only required to be able to execute the above procedure, and is, for example, a mobile terminal, a stationary terminal, a server, or the like.

  In the game control method according to the present invention, the specific game medium is a game medium having the highest value among a plurality of game media, and a game medium other than the game medium having the highest value in the selection of the game medium. Is selected, the game media other than the game media game media having the highest value are stored in association with the player, and the game media other than the game media having the highest value are the same as the game media in the reselection of the game media. Probability of selecting the game media having the highest value as the number of times that the game media is selected from a plurality of game media including the types of game media and the game media is selected in accordance with a request from the player in the probability change It is preferable to change the probability that the game medium having the highest value is selected so that the game value becomes higher.

  In the game control method according to the present invention, it is preferable to reset the probability that a specific game medium is selected when a specific game medium is selected in the selection of the game medium in the probability change.

  Further, in the game control method according to the present invention, the specific game medium includes two or more game media, and in changing the probability, among the game media included in the specific game media in the selection of the game media, When the first game medium is selected, the probability that the specific game medium is selected is not reset, and when the second game medium other than the first game medium is selected, the specific game medium is selected. It is preferable to reset the probability.

  In the game control method according to the present invention, it is preferable to reset the probability that a specific game medium is selected when the number of times that the game medium has been selected according to a request from the player reaches a predetermined number. .

  In the game control method according to the present invention, it is preferable that the specific game medium is set according to a request from the player.

  In the game control method according to the present invention, the computer further includes an output unit, and the display unit displays display data for displaying a probability that a specific game medium is selected every time the game medium is selected. It is preferable to output.

  In the game control method according to the present invention, in the probability change, the relationship between the game medium selected in the selection of the game medium and the specific game medium, the points given to the player in another game different from the game, It is preferable to change the degree of changing the probability that a game medium is selected based on the level of the player in the game or the number of messages transmitted from the player to other players.

  In the game control method according to the present invention, in the probability change, the relationship between the game medium selected in the selection of the game medium and the specific game medium, the points given to the player in another game different from the game, It is preferable to set an upper limit value of the probability that the game medium is selected based on the level of the player in the game or the number of messages transmitted from the player to other players.

  A computer according to the present invention is a computer that executes a game in which game media are stored in association with a player, a storage unit that stores a plurality of game media as game media that can be stored in association with each other in the game, and a request from the player In accordance with the request from the player, the selecting unit includes a selecting unit that selects a game medium from a plurality of game media and an associating unit that stores the selected game medium in association with the player. In accordance with the number of times that the game medium is selected again from a plurality of game media including the same type of game media as the played game media and the game media is selected according to the request from the player, the next in accordance with the request from the player The probability that a specific game medium among a plurality of game media in selection is selected is changed.

A control program according to the present invention is a computer control program that includes a storage unit and executes a game that stores a game medium in association with a player, and stores a plurality of game media as game media that can be stored in association with each other in the game. The game medium is stored in the storage unit, the game medium is selected from a plurality of game media in accordance with a request from the player, the selected game medium is stored in association with the player, and the game medium stored in association in accordance with the request from the player The game media is re-selected from a plurality of game media including the same type of game media, and a plurality of times in the next selection according to the request from the player according to the number of times the game media is selected according to the request from the player. Executes the computer to change the probability that a particular game medium will be selected. To.
The game control method according to the present invention is a game control method in a computer that includes a storage unit and executes a game that stores a game medium in association with a player, and the computer can store the game medium in association with the game. And storing a plurality of game media in the storage unit, storing a winning probability of each group in the storage unit for a plurality of groups into which the plurality of game media are classified, and based on a winning probability of each group according to a request from the player Selecting one group from a plurality of groups, selecting one game medium from all game media included in the selected group, and storing the selected game media in association with the player, Depending on the number of times the game media is selected according to the request from the player, Based on the winning probability of each group including the winning probability of the changed group according to the request from the player, changing the winning probability of a specific group of the plurality of groups in the next selection according to the request from the ear A group is reselected from among a plurality of groups in which a plurality of game media including the same game media as the game media stored in association is classified, and from among all game media included in the reselected group Including re-selecting one game medium and storing the re-selected game medium in association with the player.
In the game control method according to the present invention, the specific group is a group including a game medium having the highest value among a plurality of game media, and the computer is a game medium having the highest value in selecting the game medium. When a game medium other than is selected, the game medium other than the selected game medium with the highest value is stored in association with the player, and in changing the winning probability, the number of times the game medium is selected according to the request from the player is large. It is preferable to change the winning probability of the group including the game value having the highest value so that the winning probability of the group including the game value having the highest value becomes higher.
In the game control method according to the present invention, the computer may reset the winning probability of a specific group when a game medium included in the specific group is selected in the selection of the game medium in changing the winning probability. preferable.
Further, in the game control method according to the present invention, the specific group includes two or more game media, and the computer selects a game media included in the specific group in the selection of the game media in changing the winning probability. If the first game medium is selected, the winning probability of the specific group is not reset. If the second game medium other than the first game medium is selected, the winning probability of the specific group is reset. It is preferable to do.
In the game control method according to the present invention, the computer may reset the winning probability of a specific group when the number of times that the game medium is selected according to a request from the player reaches a predetermined number in changing the winning probability. preferable.
In the game control method according to the present invention, the specific group is preferably set according to a request from the player.
In the game control method according to the present invention, the computer further includes an output unit,
It is preferable that the computer further outputs display data for displaying the winning probability of a specific group for each number of times the game medium is selected to the output unit.
In the game control method according to the present invention, in changing the winning probability, the computer changes the winning probability based on the relationship between the game medium selected in the selection of the game medium and the game medium included in the specific group. It is preferable to change the degree.
Further, in the game control method according to the present invention, in the change of the winning probability, the computer determines the upper limit value of the winning probability based on the relationship between the game medium selected in the selection of the game medium and the game medium included in the specific group. Is preferably set.
In the game control method according to the present invention, the game is a lottery game, and the computer further executes a main game including a quest or battle different from the lottery game according to a request from the player, and changes the winning probability. The degree to which the winning probability is changed is changed based on the points given to the player according to the result of the quest or battle in the main game or the level of the player in the main game determined according to the point given to the player It is preferable to do.
In the game control method according to the present invention, the game is a lottery game, and the computer further executes a main game including a quest or battle different from the lottery game according to a request from the player, and changes the winning probability. The upper limit value of the winning probability is set based on the points given to the player according to the result of the quest or battle in the main game or the level of the player in the main game determined according to the point given to the player It is preferable.
In the game control method according to the present invention, the game is a lottery game, and the computer further executes a main game different from the lottery game in accordance with a request from the player, and further from the player in accordance with a request from the player. It is preferable to transmit a message to a related player related to the player in the main game, and to change the winning probability in changing the winning probability based on the number of messages transmitted by the player to the related player. .
In the game control method according to the present invention, the game is a lottery game, and the computer further executes a main game different from the lottery game in accordance with a request from the player, and further from the player in accordance with a request from the player. It is preferable to transmit a message to a related player related to the player in the main game, and to set an upper limit value of the winning probability based on the number of messages transmitted by the player to the related player in changing the winning probability.
The computer according to the present invention is a computer for executing a game in which game media are stored in association with players, and stores a plurality of game media as game media that can be stored in association with each other in the game. A storage unit that stores the winning probabilities of each group for a plurality of groups that are classified, and in accordance with a request from the player, one group is selected from the plurality of game media based on the winning probabilities of each group and selected A selection unit that selects one game medium from among all game media included in the group; and an association unit that stores the selected game medium in association with the player, thereby providing the selection to the player. Request from the player according to the number of times the game medium has been selected according to the request from the player. According to a request from the player, the winning probability of a specific group among a plurality of groups in the next selection is changed and stored in association with each other based on the winning probability of each group including the winning probability of the changed group. Reselect one group from a plurality of groups in which a plurality of game media including the same game media as the game media are classified, and select one game media from all the game media included in the reselected group. The re-selection is performed, and the associating unit stores the re-selected game media in association with the player, thereby giving it to the player.
A control program according to the present invention is a computer control program that executes a game that includes a storage unit and stores a game medium in association with a player, and a plurality of game media as game media that can be stored in association with each other in the game Is stored in the storage unit, and the winning probability of each group is stored in the storage unit for a plurality of groups into which a plurality of game media are classified, and according to a request from the player, the winning probability of each group is determined based on the winning probability of each group. By selecting one group from among the game media, selecting one game media from all the game media included in the selected group, storing the selected game media in association with the player, and giving to the player, According to the request from the player according to the number of times the game medium is selected according to the request from the player. A game medium in which a winning probability of a specific group among a plurality of groups in the next selection is changed and stored in association with each other based on the winning probability of each group including the winning probability of the changed group according to a request from the player Re-select one group from a plurality of groups in which multiple game media including the same game media are classified, and re-select one game media from all game media included in the re-selected group Then, by storing the reselected game media in association with the player, the computer is caused to give the player.

  In the game control method, computer, and control program according to the present invention, the probability that a specific game medium is selected can be flexibly changed according to the number of times the game medium is selected. It is possible to improve the player's expectation for acquisition.

It is a figure which shows an example of schematic structure of a game system. It is a figure which shows an example of schematic structure of a portable terminal. It is a schematic diagram for demonstrating the game which a game system provides. (A)-(d) is a figure which shows an example of the screen displayed on a portable terminal. It is a figure which shows an example of schematic structure of a server. (A)-(c) is a figure which shows an example of the data structure of each table. It is a figure which shows an example of the operation | movement sequence which concerns on a lottery game process. It is a figure which shows an example of the operation | movement sequence which concerns on a detailed screen display process. It is a figure which shows an example of the operation | movement flow of a lottery process.

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, and extends to the invention described in the claims and equivalents thereof.

1. Outline of Embodiment In the game system of this embodiment, a player executes a game provided by a server using a mobile terminal. In the game system of the present embodiment, the server provides a web game.

  In the web game, the mobile terminal displays various game screens based on information (a document written in a markup language, a program written in a script language, etc.) received from a server via a browser. The server also updates game data and transmits information to the mobile terminal based on information transmitted from the mobile terminal via the browser.

  The game provided by the server includes a main game and a lottery game which is another game different from the main game. The server executes a quest that proceeds according to the game scenario as the main game. A quest is generally called a search, a mission, or the like, and has a plurality of floors (stages) in each of a plurality of dungeons, and sequentially executes the processing of each floor. The processing of each floor includes a battle between a player character and an enemy character, granting a privilege such as a specific game medium to the player, a so-called RAID battle in which a plurality of players participate, encounters with other players, and / or This includes battles (matches) with other players. The player character is a game medium possessed by the player, and the enemy character is a game medium possessed by a non-player character or another player.

  A game medium is electronic data used in a game, and includes, for example, a card, an item, a character, an avatar, and the like. The game medium is electronic data that can be acquired, held, used, managed, exchanged, combined, strengthened, sold, discarded, and / or gifted, etc. by the player as the game progresses. The usage mode of the game media is not limited to those specified in this specification. A player can grow a character or acquire an item by executing a quest.

  In this embodiment, a card registered in advance in the game system will be described as an example of a game medium. The player character or enemy character card used in the battle has a battle parameter. The battle parameters include, for example, attack power, defense power, physical strength (or HP (hit points)), attributes (eg, fire, water, thunder, etc.), rarity (eg, normal, rare, S (super) rare, SS (double super) rare, SSS (triple super) rare, legend, etc.), skill (special effect) activation rate, attack speed (number of attacks in one turn, number of turns until attack, etc.), number of defenses in one match Parameters and / or jobs (eg, occupation, military type, etc.). The card to which one character is assigned is not limited to one card, and a plurality of cards having different battle parameters may be assigned to each character.

  In addition, as a lottery game, the server executes a lottery for selecting a character card from among a plurality of character cards set as a lottery object in accordance with a request from a player who operates the mobile terminal, and selects the selected character card as a player. Are stored in association with each other to be given to the player. That is, in this lottery, game media that can be stored in association with each other are set as game media to be drawn. In this lottery, the character card selected and given to the player is left without being excluded from the lottery target. That is, in the next lottery, the server reselects a character card from a plurality of character cards set as a lottery target, including a character card of the same type as the assigned character card, in accordance with a request from the player. Then, the server changes the winning probability of the specific character card in the next lottery according to the number of times the lottery is executed according to the request from each player.

  The specific character card whose winning probability is changed is an eyeball card that becomes the centerpiece in the lottery game, and is predetermined by the operator of the game system. For example, the main card is a character card having the highest degree of rarity, a character card having a specific special effect, a card (seasonal or event limited card) that can be acquired only at a specific time, and the like. It is the most valuable character card among character cards. The winning probability of the eyeball card is reset when the eyeball card is selected and given to the player. The winning probability is reset by resetting to the initial value of the winning probability, that is, the winning probability when the lottery is first executed. Thus, the winning probability of the eyeball card can be flexibly changed according to the number of times the lottery is executed, and the player's expectation for acquiring the eyeball card is improved.

2. Configuration of Game System 1 FIG. 1 is a diagram illustrating an example of a schematic configuration of the game system 1.

  The game system 1 includes at least one mobile terminal 2 and a server 3. The portable terminal 2 and the server 3 are connected to each other via a communication network such as a base station 4, a mobile communication network 5, a gateway 6, and the Internet 7, for example. A program (for example, a browsing program) executed on the portable terminal 2 and a program (for example, a game program) executed on the server 3 are made using a communication protocol such as Hypertext Transfer Protocol (HTTP). Communicate.

  The mobile terminal 2 is assumed to be a multi-function mobile phone (so-called “smart phone”), but the present invention is not limited to this. The mobile terminal 2 only needs to be applicable to the present invention. For example, a mobile phone (so-called “feature phone”), a mobile information terminal (Personal Digital Assistant, PDA), a mobile game machine, a mobile music player, a tablet terminal, a tablet A PC, a notebook PC, or the like may be used.

2.1. Configuration of Mobile Terminal 2 FIG. 2 is a diagram illustrating an example of a schematic configuration of the mobile terminal 2.

  The mobile terminal 2 includes a terminal communication unit 21, a terminal storage unit 22, an operation unit 23, a display unit 24, and a terminal processing unit 25. The portable terminal 2 requests the server 3 to advance the game in accordance with the operation of the operation unit 23 (touch panel, button, etc.) by the player. In addition, the mobile terminal 2 receives display data related to the progress of the game from the server 3 and displays it.

  The terminal communication unit 21 includes a communication interface circuit including an antenna whose sensitivity band is a predetermined frequency band, and connects the mobile terminal 2 to the wireless communication network. The terminal communication unit 21 establishes a radio signal line by a CDMA (Code Division Multiple Access) method or the like with the base station 4 through a channel assigned by the base station 4, and communicates with the base station 4. Do. Then, the terminal communication unit 21 transmits the data supplied from the terminal processing unit 25 to the server 3 or the like. Further, the terminal communication unit 21 supplies data received from the server 3 or the like to the terminal processing unit 25. Note that the terminal communication unit 21 may perform wireless communication with a wireless communication method of the IEEE 802.11 standard with a WiFi (Wireless Fidelity) access point (not shown).

  The terminal storage unit 22 includes, for example, a semiconductor memory device. The terminal storage unit 22 stores an operating system program, a driver program, an application program, data, and the like used for processing in the terminal processing unit 25. For example, the terminal storage unit 22 stores an input device driver program for controlling the operation unit 23, an output device driver program for controlling the display unit 24, and the like as driver programs. In addition, the terminal storage unit 22 stores, as an application program, a program that acquires and displays display data related to the progress of the game. The computer program is a terminal storage unit using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM (compact disk read only memory) or a DVD-ROM (digital versatile disk read only memory). 22 may be installed. The computer program may be installed in the terminal storage unit 22 from a specific server device or the like via wireless communication. Further, the terminal storage unit 22 stores, as data, a player ID that is identification information of the user of the mobile terminal 2, display data relating to the progress of the game, video data, image data, and the like. Further, the terminal storage unit 22 may temporarily store temporary data related to a predetermined process.

  The operation unit 23 may be any device as long as the operation of the mobile terminal 2 is possible, and is, for example, a touch panel, a key button, or the like. The player can input characters, numbers, symbols, and the like using the operation unit 23. When operated by the player, the operation unit 23 generates a signal corresponding to the operation. And the produced | generated signal is supplied to the terminal process part 25 as a player's instruction | indication.

  The display unit 24 may be any device as long as it can display images, images, and the like, and is, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display. The display unit 24 displays a video corresponding to the video data supplied from the terminal processing unit 25, an image corresponding to the image data, and the like.

  The terminal processing unit 25 includes one or a plurality of processors and their peripheral circuits. The terminal processing unit 25 is a CPU (Central Processing Unit), for example, and comprehensively controls the overall operation of the mobile terminal 2. The terminal processing unit 25 includes a terminal communication unit 21, a display unit, and a display unit so that various processes of the mobile terminal 2 are executed in an appropriate procedure based on a program stored in the terminal storage unit 22, an operation of the operation unit 23, and the like The operation of 24 etc. is controlled. The terminal processing unit 25 executes processing based on programs (operating system program, driver program, application program, etc.) stored in the terminal storage unit 22. Further, the terminal processing unit 25 can execute a plurality of programs (such as application programs) in parallel.

2.1.1. Function of Terminal Processing Unit 25 FIG. 3 is a schematic diagram for explaining a lottery game provided by the game system 1.

  As shown in FIG. 3, in the lottery game by the game system 1, the lottery target character cards are classified into a plurality of groups (group 301, group 302, group 303) each including two or more character cards. The group 301 is a group of eyeball cards such as character cards having the highest rarity (super rare), for example, and the group 301 includes ten eyeball cards of different types. The group 302 is a group of medium rare cards such as a character card with a medium rare (rare), for example, and the group 302 includes ten medium rare cards of different types. The group 303 is, for example, a group of low rare cards such as character cards having the lowest rare level (normal), and the group 303 includes 80 low rare cards of different types.

  Each group may not be classified according to the rarity of the character card, but may be classified according to the time or event when the character card is issued, the item worn by the character, or the like.

  Winning probabilities 311 to 313 are assigned to the groups 301 to 303, respectively. The initial value of the winning probability 311 of the group 301 is 1%, the initial value of the winning probability 312 of the group 302 is 19%, and the initial value of the winning probability 313 of the group 303 is 80%. The server 3 randomly selects a group according to the winning probabilities 311 to 313 assigned to the groups 301 to 303. That is, in the first lottery step, the group 301 is selected with a probability of 1%, the group 302 is selected with a probability of 19%, and the group 303 is selected with a probability of 80%. The lottery step represents the order related to each lottery, and the first lottery step corresponds to the first lottery. Furthermore, the server 3 randomly selects a character card with equal probability from each character card included in the selected group. Then, the server 3 gives the selected character card to the player.

  Note that only one character card may be included in the group. When a group including only one character card is selected, one character card included in the group is given to the player.

  In this lottery game, the types of character cards to be awarded do not decrease. That is, the character card selected and given to the player is not deleted from each group in the second or subsequent lottery, but remains as a lottery target (or the assigned character card is once deleted from each group and the same again. A type of character card is replenished). Furthermore, in this lottery game, the winning probabilities 311 to 313 for selecting the groups 301 to 303 are changed in accordance with the number of times the lottery has been executed so far. In the second and subsequent lottery, the server 3 increases the winning probability 311 for selecting the group 301 of the eyeball cards, and lowers the winning probabilities 312 and 313 for selecting the other groups 302 and 303 accordingly. I will do it. That is, in the second lottery step, the group 301 is selected with a probability of 1.01%, the group 302 is selected with a probability of 18.998%, and the group 303 is selected with a probability of 79.992%. In the 99th lottery step, the group 301 is selected with a probability of 50%, the group 302 is selected with a probability of 9.596%, and the group 303 is selected with a probability of 40.404%.

  In this lottery game, each time a lottery is executed, the winning probability 311 of the centerpiece card increases, so that the player's expectation for acquiring the centerpiece card can be sufficiently improved, and the player's willingness to continue the lottery can be improved. It becomes possible. Furthermore, the server 3 wins the winning card 311 by increasing the increase value (difference value with respect to the previous winning probability) or the increasing rate (ratio with respect to the previous winning probability) in the second and subsequent lotteries. Since the probability can be changed flexibly, it is possible to further improve the player's expectation for acquiring the eyeball card. Alternatively, in the second or subsequent lottery, the server 3 can monotonously decrease the increase value or the rate of increase in the winning probability 311 of the centerpiece card or can determine the upper limit value of the winning probability 311. It can also be improved.

  FIG. 4A is a diagram illustrating an example of a home screen displayed on the display unit 24.

  A home screen 400 shown in FIG. 4A is displayed when the game is started. Each screen described below is displayed based on display data received from the server 3.

  On the home screen 400, a main game button 401, a lottery game button 402, and the like are displayed.

  When the main game button 401 is pressed, a screen for executing the main game is displayed, and the player can execute the main game. When the lottery game button 402 is pressed, a screen for executing the lottery game is displayed, and the player can execute the lottery game.

  FIG. 4B is a diagram illustrating an example of a lottery game screen displayed on the display unit 24.

  A lottery game screen 410 shown in FIG. 4B is displayed when the lottery game button 402 is pressed on the home screen 400. On the lottery game screen 410, a lottery execution count 411, a winning probability 412, a lottery button 413, a detail button 414, a return button 415, and the like are displayed.

  The number of times of lottery execution 411 is the number of times that a lottery has been executed according to a request from the player, that is, the number of times a character card has been selected. The lottery execution count 411 is reset when the player acquires the eyeball card by lottery. The winning probability 412 is a probability that each character card is selected in the lottery game. As the winning probability 412, the winning probability in the current lottery is displayed for each group into which the character cards to be drawn are classified. When the lottery button 413 is pressed, the lottery is executed and a screen for displaying the lottery result is displayed. When the detail button 414 is pressed, a screen for displaying detailed information of the winning probability is displayed, and the player can confirm the details of the winning probability. When the return button 415 is pressed, the home screen 400 is displayed again.

  By displaying the winning probability 412 of each character card, each player can predict the possibility of acquiring an eyeball card, and the expectation of each player for the lottery game can be improved.

  FIG. 4C is a diagram illustrating an example of a lottery result screen displayed on the display unit 24.

  The lottery result screen 420 shown in FIG. 4C is displayed when the lottery game is executed by pressing the lottery button 413 on the lottery game screen 410. The lottery result screen 420 displays a winning card image 421, a name and group 422, a lottery execution count 423, a winning probability 424, a return button 415, and the like.

  As the image 421, the name and the group 422, the image of the character card acquired by the player through the lottery, the name, and the lottery target group into which the character card is classified are displayed. As the lottery execution number 423, a value incremented (+1) from the lottery execution number 411 displayed on the lottery game screen 410 is displayed. When the center card is won, the lottery execution count 423 is reset to zero. As the winning probability 424, the winning probability in the next lottery is displayed for each group into which the character cards to be drawn are classified. When the return button 425 is pressed, the lottery game screen 410 is displayed again.

  By displaying the winning probability 424 of each character card in the next lottery, each player can predict the possibility of acquiring the eyeball card in the next lottery, and improve the willingness of each player to re-challenge the lottery game Is possible.

  FIG. 4D is a diagram illustrating an example of a detail screen displayed on the display unit 24.

  The detail screen 430 shown in FIG. 4D is displayed when the detail button 414 is pressed on the lottery game screen 410. The detail screen 430 displays a winning probability 432 of each group at each lottery execution count and a return button 433 and the like for each group 431 into which the lottery target characters are classified. When the return button 433 is pressed, the lottery game screen 410 is displayed again.

  The winning probability 432 includes the winning probability of the eyeball card for each number of lottery executions. Thereby, it becomes easier for each player to grasp how the winning probability of the centerpiece card changes by repeating the lottery, and it becomes possible to further improve each player's willingness to continue the lottery game. .

  The winning probability in the next lottery may be displayed so as to be distinguishable from other winning probabilities. In that case, for example, the winning probability in the next lottery is displayed larger than other winning probabilities, displayed in a different color from other winning probabilities, or blinked, so that it can be distinguished from other winning probabilities. Can be displayed. Thereby, it becomes easy for each player to grasp the winning probability in the next lottery.

2.1.2. Configuration of Terminal Processing Unit 25 The terminal processing unit 25 includes at least a browsing execution unit 251. The browsing execution unit 251 is a functional module realized by a program executed by a processor included in the terminal processing unit 25. Or the browsing execution part 251 may be mounted in the portable terminal 2 as firmware.

  The browsing execution unit 251 acquires and displays display data relating to the progress of the game. That is, the browsing execution unit 251 transmits a display data acquisition request related to the progress of the game to the server 3 via the terminal communication unit 21 in accordance with an instruction from the player. Further, the browsing execution unit 251 receives corresponding display data from the server 3 via the terminal communication unit 21. The browsing execution unit 251 creates drawing data based on the received display data. That is, the browsing execution unit 251 analyzes the received display data to identify control data and content data, lays out the content data that has been identified based on the identified control data, and creates drawing data. Then, the browsing execution unit 251 outputs the created drawing data to the display unit 24. Further, the browsing execution unit 251 stores each piece of information included in the display data in the terminal storage unit 22 while the communication connection with the server 3 is established.

2.2. Configuration of Server 3 FIG. 5 is a diagram illustrating an example of a schematic configuration of the server 3. 6A to 6C are diagrams illustrating examples of data structures of various tables stored in the server storage unit 32. FIG.

  The server 3 includes a server communication unit 31, a server storage unit 32, and a server processing unit 33. The server 3 advances the game in response to a request from the mobile terminal 2. Further, the server 3 creates display data relating to the progress of the game and transmits it to the mobile terminal 2.

  The server communication unit 31 is an example of an output unit, includes a communication interface circuit for connecting the server 3 to the Internet 7, and performs communication with the Internet 7. And the server communication part 31 supplies the data received from the portable terminal 2 grade | etc., To the server process part 33. FIG. In addition, the server communication unit 31 transmits the data supplied from the server processing unit 33 to the mobile terminal 2 or the like.

  The server storage unit 32 includes, for example, at least one of a magnetic tape device, a magnetic disk device, and an optical disk device. The server storage unit 32 stores an operating system program, a driver program, an application program, data, and the like used for processing in the server processing unit 33. For example, the server storage unit 32 stores, as an application program, a game program that progresses a game and creates display data related to the result. The computer program may be installed in the terminal storage unit 22 using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM or DVD-ROM.

  In addition, the server storage unit 32 includes, as data, a player table shown in FIG. 6A, a card table shown in FIG. 6B, a group table shown in FIG. 6C, image data of each player, and game progress. Various image data and the like related to are stored. Further, the server storage unit 32 may temporarily store temporary data related to a predetermined process.

  FIG. 6A shows a player table for managing players. In the player table, for each player, the player identification number (player ID), password, name, image data file name, possession card information, possession card identification number (use ID) used for the battle, game points Information such as the player level, the number of lottery executions, and the player ID of the related player is stored in association with each other.

  In the possession card information, for each character card owned by the player and used in the game, an identification number (owner ID) for managing the possessed character card, an identification number (card ID) of the card, and the like are associated with each other. Remembered. Use ID is possession ID of the card | curd used for a battle among the cards contained in possession card information. The game point is a cumulative value of points given to each player in the main game, and results of quests (stage clear), battle results (win / loss), and event results (group to which the player belongs) performed in the main game. Is given to each player according to the order of The player level is the level of the player in the main game, and is determined according to the game points given to the player. The number of lottery executions is the number of times that the lottery is executed in accordance with a request from the player.

  The related player is another player related to the player. The related players are, for example, other players belonging to the same group as the player, other players who are in friendship with the player, other players who have rescued the player in battles with past enemy characters, And / or other players belonging to groups that have played in the past.

  FIG. 6B shows a card table for managing character cards. In the card table, for each character card, the card ID, name, image data file name, character name, rarity, HP, attack power, defense power, attributes, and the like of the character card are stored in association with each other.

  FIG. 6C shows a group table for managing character card groups classified in the lottery. In the group table, an identification number (group ID), a name, a card ID of a character card included in the group, an initial value of a winning probability, and the like are stored in association with each group. Character cards included in each group are subject to lottery in the lottery game. The winning probability of each character card included in each group is determined based on the initial value of the winning probability associated with the group and the number of lottery executions associated with each player, and is given to each character card. In the group table, for each group, a winning probability for each number of lottery executions may be associated and stored.

2.2.1. Configuration of Server Processing Unit 33 The server processing unit 33 includes a progress control unit 331, a display data output unit 332, a main game execution unit 333, a selection unit 334, and an association unit 335. Each of these units is a functional module realized by a program executed by a processor included in the server processing unit 33. Alternatively, each of these units may be mounted on the server 3 as firmware.

  The progress control unit 331 controls the start and progress of the game, and appropriately instructs the display data output unit 332, the main game execution unit 333, the selection unit 334, and the association unit 335 to execute the process. The progress control unit 331 exchanges necessary data with the mobile terminal 2 via the server communication unit 31.

  When the request for each screen described with reference to FIGS. 4A to 4C is received from the portable terminal 2, the progress control unit 331 receives a button for receiving an instruction from the player, character information notified to the player, and an image. Each unit is instructed to create display data for displaying the data in a layout corresponding to the screen, and the data is transmitted to the mobile terminal 2. When any button is pressed on the screen displayed on the mobile terminal 2 and a request for the next screen corresponding to the button is received from the mobile terminal 2, the progress control unit 331 similarly displays the next screen. Each unit is instructed to create data, and the data is transmitted to the portable terminal 2.

  In particular, when an operation for starting a game using the mobile terminal 2 or an operation for transitioning to the home screen is performed by the player and a corresponding home screen request is received from the mobile terminal 2, the progress control unit 331 displays The data output unit 332 is instructed to create display data for displaying the home screen 400. Then, the progress control unit 331 transmits the display data created by the display data output unit 332 to the mobile terminal 2.

  When the main game button 401 is pressed on the home screen 400 displayed on the mobile terminal 2 and a corresponding main game request is received from the mobile terminal 2, the progress control unit 331 sends the main game execution unit 333 to the main game. Is instructed to execute. Then, the progress control unit 331 transmits the display data created by the main game execution unit 333 for displaying the screen for executing the main game to the mobile terminal 2.

  When the lottery game button 402 is pressed on the home screen 400 displayed on the mobile terminal 2 and a corresponding lottery screen request is received from the mobile terminal 2, the progress control unit 331 displays the lottery game screen 410 on the selection unit 334. Instructs the creation of display data for displaying. Then, the progress control unit 331 transmits the display data created by the selection unit 334 to the mobile terminal 2.

  When the lottery button 413 is pressed on the lottery game screen 410 displayed on the mobile terminal 2 and a corresponding lottery request is received from the mobile terminal 2, the progress control unit 331 instructs the selection unit 334 to execute the lottery. To do. Then, the progress control unit 331 transmits the display data created by the selection unit 334 for displaying the lottery result screen 420 to the mobile terminal 2.

  When the detail button 414 is pressed on the lottery game screen 410 displayed on the mobile terminal 2 and a corresponding detail screen request is received from the mobile terminal 2, the progress control unit 331 displays the detail screen 430 on the selection unit 334. Instructs the creation of display data for display. Then, the progress control unit 331 transmits the display data created by the selection unit 334 to the mobile terminal 2.

  When the creation of home screen display data is instructed from the progress control unit 331, the display data output unit 332 creates display data for displaying the home screen 400 and passes the created display data to the progress control unit 331. .

  When execution of the main game is instructed from the progress control unit 331, the main game execution unit 333 creates display data for displaying a screen for executing the main game, and passes the created display data to the progress control unit 331. . Thereafter, the main game is executed in accordance with the operation by the player on the screen for executing the main game displayed on the mobile terminal 2. The main game execution unit 333 executes a battle or the like using a card or the like related to the use ID stored in the player table in the main game. Further, the main game execution unit 333 updates the game points and the player level in the player table according to the result, grants game points to the player, and raises the player level.

  When the creation of the lottery game screen 410 is instructed from the progress control unit 331, the selection unit 334 identifies the player ID included in the lottery screen request, and determines the number of lottery executions associated with the identified player ID from the player table. read out. Further, the selection unit 334 reads the initial value of the winning probability of each group from the group table. The selection unit 334 calculates the winning probability of each group in the next lottery based on the read initial value and the number of lottery executions. The selection unit 334 creates display data for displaying the lottery game screen 410 indicating the read lottery execution count and the calculated winning probability, and passes the created display data to the progress control unit 331.

  The selection unit 334 changes the winning probability of the eyeball card in the next lottery according to the request from the player according to the number of lottery executions by the player. The selection unit 334 changes the winning probability so that the larger the number of lottery executions, the higher the winning probability of the center card group, and the lower the winning probability of other groups accordingly.

For example, the winning probabilities for the number of lottery executions of the eyeball card group 301, the medium rare card group 302, and the low rare card group 303 shown in FIG.
Winning probability of group 301 P ₁ = A ₁ × 100 / (100−number of lottery executions)
Winning probability of group 302 P ₂ = (1−P ₁ ) × (A ₂ / (1−A ₁ ))
Winning probability of group 303 P ₃ = (1-P ₁ ) × (A ₃ / (1-A ₁ ))
Here, A ₁ is an initial value of the winning probability of the group 301, A ₂ is an initial value of the winning probability of the group 302, and A ₃ is an initial value of the winning probability of the group 303.

Hereinafter, the case where the winning probability P ₁ of the group 301 is 1%, the winning probability P ₂ of the group 302 is 19%, and the winning probability P ₃ of the group 303 is 80% will be described as an example. When the number of lottery executions is 0 (the lottery step is 1), the winning probability of the group 301 is 1%, the winning probability of the group 302 is 19%, and the winning probability of the group 303 is 80%. On the other hand, when the number of lottery executions is 1 (the lottery step is 2), the winning probability of the group 301 is 1.01%, the winning probability of the group 302 is 18.998%, and the winning probability of the group 303 is 79.992%. It becomes. When the number of lottery executions is 98 (the lottery step is 99), the winning probability of the group 301 is 50%, the winning probability of the group 302 is 9.596%, and the winning probability of the group 303 is 40.404%. . In this calculation formula, the increase value and the increase rate of the winning probability of the center card monotonically increase with respect to the number of lottery executions, so that the winning probability of the center card increases dramatically as the player executes the lottery. Therefore, it is possible to improve the player's willingness to continue with the lottery game.

  Note that the selection unit 334 may change the winning probability of each group by a method different from the above calculation formula. For example, the selection unit 334 may change the winning probability so that the increase value or the increasing rate of the winning probability of the centerpiece card is monotonously decreased with respect to the number of lottery executions. Thereby, the winning probability of the eyeball card becomes a high value to some extent in the initial stage, and it becomes easy for even a light user who only executes a lottery game to acquire the eyeball card. Therefore, it becomes possible to increase the number of participants in the lottery game by causing more light users to participate in the lottery game.

  Alternatively, the selection unit 334 may change the winning probability so that the winning probability of the centerpiece card is linear with respect to the number of lottery executions. In this case, for example, the selection unit 334 sets the winning probability of the eyeball card to 1% in the first lottery step, 2% in the second lottery step, and 99% in the 99th lottery step. Thereby, the transition of the winning probability of the centerpiece card becomes simple, and the player can easily grasp the current winning probability.

  In addition, the selection unit 334 displays the character of the character card selected in the lottery, the attribute, the rarity or the group to which it belongs, the relationship between the character card selected in the lottery and the character card owned by the player, and the character card selected in the lottery. And the degree of change in the winning probability based on the relationship between the main card and the points given to the player in the main game, the level of the player in the main game, or the number of messages sent by the player to other players Good. The selection unit 334 increases (increases) the lottery step by two or more steps in one lottery to increase the degree of increase in the winning probability and returns (decreases) the lottery step to decrease the winning probability. can do. Further, the selection unit 334 can prevent the winning probability from being changed by not changing the lottery step after the lottery.

  For example, the selection unit 334 calculates the next winning probability when the character, attribute, rarity, or group to which the character card selected in the lottery is the same as a predetermined character, attribute, rarity, or group. If it is not the same, it will be larger than the next winning probability. In addition, the selection unit 334 increases the next winning probability when the character card selected in the lottery is the same as the character card already owned by the player, than the next winning probability when it is not the same. Further, the selection unit 334 increases the next winning probability when the character or the attribute of the character card and the eyeball card selected in the lottery are the same as the next winning probability when they are not the same. As a result, even if the eyeball card is not won, there is a possibility that the next winning probability may be greatly improved, so that it is possible to improve the player's expectation for obtaining the eyeball card.

  In addition, for example, the selection unit 334 increases the degree of increase in the winning probability at each step as the game point or player level stored in the player table is higher, and decreases the degree of increase in the winning probability as the game point or player level is lower. The degree of increase in the winning probability is changed so that As a result, each player executes the main game more frequently in order to improve the degree of increase in the winning probability, so that the main game can be activated.

  For example, the selection unit 334 may increase the winning probability so that the higher the number of messages transmitted by the player to the related player or the number of messages solicited to the main game transmitted by the player to other players, the greater the winning probability increases. Change the degree of increase. Thereby, each player transmits more messages in order to improve the degree of increase in the winning probability, so that communication between players can be activated.

  Further, the selection unit 334 sets an initial value immediately after resetting the winning probability based on the points given to the player in the main game, the level of the player in the main game, or the number of messages transmitted by the player to other players. It may be changed. Note that the selection unit 334 can dynamically change the initial value of the winning probability by changing the lottery step immediately after resetting the winning probability to a step other than 1.

  For example, the selection unit 334 increases the initial value of the winning probability as the game point or player level stored in the player table is higher, and decreases the initial value of the winning probability as the game point or player level is lower. Change the initial value of the winning probability. As a result, each player executes the main game more frequently in order to improve the initial value of the winning probability, so that the main game can be activated.

  In addition, for example, the selection unit 334 may win so that the initial value of the winning probability increases as the number of messages transmitted by the player to the related players or the number of messages solicited to the main game transmitted from the player to other players increases. Change the initial value of the probability. Thereby, each player transmits more messages in order to improve the initial value of the winning probability, so that communication between the players can be activated.

  Further, in the above calculation formula, when the number of lottery executions is 99, the winning probability of the group 301 is 100%, and the eyeball card is always won. Therefore, the selection unit 334 sets an upper limit on the winning probability of the center card. For example, the selection unit 334 sets the upper limit of the winning probability to 50%, and determines the winning probability of each group when the number of lottery executions is 99 or more (100th and subsequent lottery steps). In the lottery step), the winning probability is set to the same value. By setting an upper limit on the winning probability, it is possible to prevent the winning probability from becoming too high and the player's expectation for acquiring the eyeball card from being lowered.

  The selection unit 334 displays the character of the character card selected in the lottery, the attribute, the rarity or the group to which it belongs, the relationship between the character card selected in the lottery and the character card owned by the player, and the character card selected in the lottery. The upper limit value of the winning probability may be set based on the relationship between the main card and the points, the points given to the player in the main game, the level of the player in the main game, or the number of messages sent by the player to other players . The selection unit 334 can change the upper limit value of the winning probability by changing the maximum number of lottery steps.

  For example, when the character, attribute, rarity, or group to which the selection unit 334 selects the character card selected in the lottery is the same as the predetermined character, attribute, rarity, or group, the upper limit value of the winning probability Is set to a value higher than the current upper limit. Further, when the character card selected in the lottery is the same as the character card already owned by the player, the selection unit 334 sets the upper limit value of the winning probability higher than the current upper limit value of the winning probability. The selection unit 334 sets the upper limit value of the winning probability to a value higher than the current upper limit value when the character or the attribute of the character card selected in the lottery and the eyeball card are the same. As a result, even if the centerpiece card is not won, the upper limit value of the winning probability may be increased, so that the player's expectation for acquiring the centerpiece card can be improved.

  Further, for example, the selection unit 334 sets the upper limit of the winning probability so that the upper limit value of the winning probability is higher as the game point or the player level stored in the player table is higher, and the lower the game point or the player level is, the higher the winning probability is. The upper limit of the winning probability is set so that the upper limit value of the probability is lowered. Thereby, each player executes the main game more frequently in order to improve the upper limit value of the winning probability, so that the main game can be activated.

  Further, for example, the selection unit 334 may increase the winning probability so that the upper limit value of the winning probability increases as the number of messages transmitted by the player to the related player or the number of messages solicited to the main game transmitted from the player to other players increases. Set the upper limit of. Thereby, each player transmits more messages in order to improve the upper limit value of the winning probability, so that communication between players can be activated.

  Further, when the execution control unit 331 instructs the selection unit 334 to execute the lottery, the selection unit 334 specifies the player ID included in the lottery screen request, and reads the number of lottery executions associated with the specified player ID from the player table. . Further, the selection unit 334 reads the initial value of the winning probability of each group from the group table. The selection unit 334 calculates the winning probability of each group by the above-described method based on the read initial value and the number of lottery executions, and randomly selects a group according to the calculated winning probability. For example, the selection unit 334 randomly selects a group using a pseudo-random number generated using the current clock counter value of the server 3 as a seed. Furthermore, the selection part 334 selects a character card at random from each character card contained in the selected group. For example, the selection unit 334 randomly selects a character card so that all the character cards are selected with the same probability using a pseudo-random number generated using the current clock counter value or the like of the server 3 as a seed. .

  As described above, the selection unit 334 selects a character card from a plurality of lottery target character cards in accordance with a request from the player. When a group other than the eye card group is selected in the lottery, the selection unit 334 increments the number of lottery executions in the player table. In this case, the winning probability in the next lottery of the centerpiece card is higher than the winning probability in the current lottery, and the winning probability in the next lottery of character cards other than the centerpiece card is lower than the winning probability in the current lottery. On the other hand, the selection unit 334 resets the number of lottery executions in the player table when a group of eyeball cards is selected in the lottery. In this case, the winning probability in the next lottery of each character card is reset and returns to the initial value.

  Note that the selection unit 334 may not reset the lottery execution count and not reset the winning probability in the next lottery of each character card even when a group of eyeball cards is selected in the lottery. Thereby, the player can acquire other eyeball cards with a high probability even after acquiring a specific eyeball card in the group of eyeball cards, and the player's continuation willingness to the lottery game can be improved. It becomes.

  The selection unit 334 may automatically reset the number of lottery executions when the number of lottery executions reaches a predetermined number (for example, 50), and reset the winning probability in the next lottery of each character card. Thereby, since each player needs to acquire an eyeball card during a predetermined number of times of lottery execution, the game performance of the lottery game is improved, and further, a large amount of eyeball cards are suppressed from being given to the player. .

  In addition, the selection unit 334 may reset the number of lottery executions according to a request from the player, and reset the winning probability in the next lottery of each character card.

  In addition, the selection unit 334 does not reset the winning probability of each character card when a special card is selected from the centerpiece cards, and when a card other than the special card is selected, the winning probability of each character card May be reset. In that case, since a large amount of special cards may be given to each player, it is preferable that a card that may be distributed in large quantities is determined as a special card. Thereby, when the special card is selected, the winning probability of the center card remains high, so that it is possible to further improve the game performance of the lottery game. Alternatively, the special card may be set by each player for each player. Thereby, until the character card set by each player is selected, the winning probability of the center card remains high, so that each player can surely obtain a desired card.

  Next, the selection unit 334 instructs the associating unit 335 to give the selected character card to the player. Next, the selection unit 334 calculates the winning probability of each group in the next lottery based on the number of lotteries updated in the player table. The selection unit 334 creates display data for displaying the selected player card, the updated number of lottery executions and the calculated next-time winning probability, and passes the created display data to the progress control unit 331. .

  Further, when the progress control unit 331 instructs the selection unit 334 to create display data for displaying the detailed screen 430, the selection unit 334 calculates the winning probability of each group for each lottery execution count, Display data for displaying the detailed screen 430 representing the winning probability of the current is created, and the created display data is passed to the progress control unit 331.

  When the selection unit 334 gives an instruction to give a character card to the player, the associating unit 335 gives the character card selected by the selecting unit 334 to the player by storing the character card in association with the player. The associating unit 335 adds the character card to the player by adding the card ID of the character card to the player's possessed card information in the player table. At that time, the associating unit 335 leaves the character card selected by the selecting unit 334 as a lottery object in the next lottery without deleting it from the group table.

  In this way, the associating unit 335 leaves the selected character card as a lottery object in the next lottery even when a group other than the eyeball card group is selected in the lottery or when a group of the eyeball card is selected. While giving to the player. Thereby, also in the next lottery, the selection part 334 will reselect a character card from the several character card set as the lottery object including the character card of the same kind as the provided character card. . That is, in each lottery, the type or the number of types of character cards that are the lottery targets are not changed and are maintained.

  FIG. 7 is a diagram illustrating an example of an operation sequence related to the lottery game process of the game system 1. This operation sequence cooperates with each element of the portable terminal 2 and the server 3 mainly by the terminal processing unit 25 and the server processing unit 33 based on the programs stored in the terminal storage unit 22 and the server storage unit 32 in advance. And executed.

  First, when the player presses the lottery game button 402 using the operation unit 23 while the home screen 400 is displayed on the display unit 24 of the mobile terminal 2, the browsing execution unit 251 of the mobile terminal 2 issues a lottery screen request. It transmits to the server 3 via the terminal communication part 21 (step S101). When the progress control unit 331 of the server 3 receives the lottery screen request from the portable terminal 2, the selection unit 334 wins each group in the next lottery based on the initial value of the winning probability of each group and the number of times the player performs the lottery. The probability is calculated (step S102). Next, the selection unit 334 creates display data for displaying the lottery game screen 410 representing the number of times that the player has performed the lottery and the calculated winning probability (step S103). Next, the progress control unit 331 transmits the display data created by the selection unit 334 to the mobile terminal 2 (step S104). When display data is received from the server 3 via the terminal communication unit 21, the browsing execution unit 251 of the mobile terminal 2 creates drawing data based on the received display data and displays the lottery game screen 410 on the display unit 24. (Step S105).

  Next, when the player presses the lottery button 413 using the operation unit 23 in a state where the lottery game screen 410 is displayed on the display unit 24 of the portable terminal 2, the browsing execution unit 251 of the portable terminal 2 issues a lottery request. It transmits to the server 3 via the terminal communication part 21 (step S106). When the progress control unit 331 of the server 3 receives a lottery request from the mobile terminal 2, the selection unit 334 executes a lottery process (step S107). Details of the lottery process will be described later. Next, the selection unit 334 creates display data for displaying the lottery result screen 420 representing the player card selected in the lottery process, the updated number of lottery executions, and the calculated next winning probability (step S108). Next, the progress control unit 331 transmits the display data created by the selection unit 334 to the mobile terminal 2 (step S109). When display data is received from the server 3 via the terminal communication unit 21, the browsing execution unit 251 of the mobile terminal 2 creates drawing data based on the received display data and displays the lottery result screen 420 on the display unit 24. (Step S110). Thus, the operation sequence related to the lottery game process is completed.

  FIG. 8 is a diagram illustrating an example of an operation sequence related to the detailed screen display process of the game system 1. This operation sequence cooperates with each element of the portable terminal 2 and the server 3 mainly by the terminal processing unit 25 and the server processing unit 33 based on the programs stored in the terminal storage unit 22 and the server storage unit 32 in advance. And executed.

  First, in a state where the lottery game screen 410 is displayed on the display unit 24 of the mobile terminal 2, when the player presses the detail button 414 using the operation unit 23, the browsing execution unit 251 of the mobile terminal 2 issues a detailed screen request. It transmits to the server 3 via the terminal communication part 21 (step S201). When the progress control unit 331 of the server 3 receives the detailed screen request from the mobile terminal 2, the selection unit 334 calculates the winning probability of each group for each lottery execution number (step S202). Next, the selection unit 334 creates display data for displaying a detailed screen 430 representing the winning probability for each calculated number of lottery executions (step S203). Next, the progress control unit 331 transmits the display data created by the selection unit 334 to the mobile terminal 2 (step S204). When the display data is received from the server 3 via the terminal communication unit 21, the browsing execution unit 251 of the mobile terminal 2 creates drawing data based on the received display data and causes the display unit 24 to display the detailed screen 430. (Step S205). This completes the operation sequence related to the detailed screen display process.

  FIG. 9 shows an operation flow of lottery processing by the selection unit 334 and the association unit 335. The home screen display data creation process shown in FIG. 9 is executed in step S107 in FIG.

  First, the selection unit 334 calculates the winning probability of each group in the current lottery based on the number of lottery executions by the player (step S301). Next, the selection unit 334 randomly selects a group according to the calculated winning probability, and randomly selects a character card from each character card included in the selected group (step S302). Next, the selection unit 334 determines whether or not an eyeball card has been selected in the lottery (step S303). When a character card other than the eyeball card is selected in the lottery (step S303-No), the selection unit 334 increments the number of lottery executions associated with the player in the player table (step S304). On the other hand, when an eyeball card is selected in the lottery (step S303-Yes), the selection unit 334 resets the number of lottery executions associated with the player in the player table (step S305).

  Next, the associating unit 335 adds the character card selected by the selecting unit 334 to the player by adding it to the possessed card information of the player table without deleting it from the group table (step S306). This step is finished.

  Note that the selection unit 334 may execute the lottery using the winning probability calculated in step S102 of FIG. 7 instead of calculating the winning probability of each group in the current lottery in step S301.

  As described above, since the server 3 can flexibly change the winning probability of the eyeball card according to the number of lottery executions, it is possible to improve the player's expectation for acquiring the eyeball card. Become. Further, since the player can increase the winning probability of the centerpiece card by repeating the lottery game, the player can get a sense of nurturing the lottery game.

  Further, in the lottery of the present embodiment, since the winning character card is not deleted from the lottery object, the player can acquire the winning character card again. Therefore, in a game in which the same card can be used to increase the level of the character card or the upper limit of the level, the player can easily increase the level of the character card or the upper limit of the level.

  In addition, in the lottery in which the winning character card is deleted from the lottery target, the winning probability of all the remaining cards increases, whereas in the lottery of this embodiment, as the number of lottery executions increases, The winning probability increases, and the winning probability of other cards decreases. Therefore, in the lottery of the present embodiment, the more the lottery is repeated, the lower the possibility that an unwinned card will be won, and the lower the possibility that a card not required by the player will be won.

  Note that the present invention is not limited to this embodiment. For example, in the present embodiment, the eyeball card is determined in advance by the operator of the game system, but some or all of the character cards included in the eyeball card group are received from the player using the mobile terminal 2. May be set according to requirements. Thereby, each time it is possible for each player to perform a lottery, it is possible to increase the winning probability of the character card that he / she wants and to further improve the player's willingness to continue the lottery.

  In addition, the selection unit 334 may change the winning probability so that only the winning probability of the character card selected in the lottery is reduced and only the winning probability of the center card is increased. Alternatively, the selection unit 334 may change the winning probability so that only the winning probability of the character card selected in the lottery is low and the winning probability of all other character cards is high. As a result, it is possible to reduce the possibility that the same character card is won in duplicate, thereby reducing the possibility that the player will be disappointed by obtaining the same character card, and the game characteristics in the lottery game. Can be maintained.

  Conversely, the selection unit 334 may change the winning probability so that only the winning probability of the character card other than the eyeball card, which is not selected in the lottery, is low, and only the winning probability of the eyeball card is high. . Alternatively, the selection unit 334 may change the winning probability so that only the winning probabilities of character cards other than the eyeball card that are not selected in the lottery are low and the winning probabilities of all other character cards are high. . In a game in which the upper limit value of the parameter value of the character card can be increased using the same character card, the probability that the same character card can be acquired can be maintained or improved thereby, and the upper limit value can be increased. The potential to be able to be maintained or improved.

  Moreover, the main game execution part 333 may give a privilege to a player in a main game, when the number of lottery execution reaches an upper limit or predetermined number in a lottery game. For example, the main game execution unit 333 gives a game medium such as an item or a character card used in the main game to the player as a privilege. Or the main game execution part 333 may make the game point provided to a player in a main game larger than the point provided normally as a privilege. Thereby, since each player runs a lottery game more frequently so that the main game can be advanced more advantageously, the entire game can be activated.

  In addition, when a lottery game is performed every predetermined event period, the server 3 determines that the number of lottery executions (winning probability of an eyeball card) reaches an upper limit or a predetermined value in the lottery game performed during a specific event period. May hand over the number of lottery executions (winning probability of the centerpiece card) to a lottery game to be executed in the next event period. In that case, the server 3 does not delete the number of lottery executions (winning probability of the centerpiece card) even after the end of the specific event period, and the number of lottery executions (winning probability of the centerpiece card) in the lottery performed in the next event period ) As an initial value. As a result, each player executes the lottery game more frequently in anticipation of the merit obtained in the future, so that the lottery game can be activated.

  Further, in the present embodiment, another game different from the main game has been described as a lottery game, but the game is not limited to a lottery game, and any form of game as long as it is a game for selecting a specific game medium. It may be.

  In the present embodiment, the example in which the selected game medium is given to the player has been described. However, the selected game medium may not necessarily be given to the player as long as it is stored in association with the player. For example, the selected game medium may be set so that the player can only browse or provide it to other players.

  The functions of the server processing unit 33 described above may be executed by the terminal processing unit 25 of the mobile terminal 2. In this case, if the player table, the card table, and the group table are stored in the terminal storage unit 22, it is not necessary to communicate with the server 3 each time processing is performed, and the above function can be realized only by the portable terminal 2. It is. The game executed on the mobile terminal 2 may be a hybrid game in which each of the server 3 and the mobile terminal 2 takes part of the processing. In that case, for example, each screen related to the progress of the game is a web display displayed on the mobile terminal 2 based on display data generated by the server 3, and other menu screens and the like are installed in the mobile terminal 2. The native display is displayed by.

  It should be understood by those skilled in the art that various changes, substitutions, and modifications can be made thereto without departing from the spirit and scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Game system 3 Server 31 Server communication part 32 Server memory | storage part 33 Server processing part 331 Progress control part 332 Display data output part 333 Main game execution part 334 Selection part 335 Association part

Claims (13)

A game control method in a computer that includes a storage unit and executes a lottery game, the computer comprising:
A plurality of game media used in the main game are stored in the storage unit in association with the rare degree of each game medium, and the winning probability of the game medium having each rare degree is stored in the storage unit,
Each time requested by the player, all of the plurality of game media are subject to lottery, and the lottery is executed based on the winning probability.
The winning game medium is given to the player by storing it in association with the player,
According to the number of times the lottery is executed according to the request from the player, the winning probability of the game medium having a predetermined rare degree in the lottery according to the request from the player is changed based on a predetermined change degree ,
When the number of times the lottery has been executed reaches a first predetermined number, in addition to the winning game media, a specific game media used in the main game is stored in association with the player and given to the player To
Look at including it,
The predetermined change degree when the winning game medium is a game medium having a predetermined rare degree is different from the predetermined change degree when the winning game medium is not a game medium having a predetermined rare degree.
A game control method characterized by the above.   The game control method according to claim 1, wherein the predetermined rare degree is the highest rare degree among the rare degrees of the plurality of game media.   The game according to claim 1, wherein the computer increases the winning probability of the game medium having the predetermined rarity as the number of times the lottery is executed according to a request from the player in the change of the winning probability. Control method. 4. The computer according to claim 1, wherein, in the change of the winning probability, the winning probability of the game medium having the predetermined rare degree is reset when the number of times the lottery is executed is a second predetermined number. 5 . The game control method according to any one of the above. The computer further includes an output unit,
The computer further outputs display data for displaying the winning probability of a game medium having a predetermined degree of rareness of each number of times of selecting the game medium to the output section, claim 1-4 The game control method according to one item. The computer according to any one of claims 1 to 5 , wherein in changing the winning probability, the degree of changing the winning probability is changed based on a relationship between the winning game medium and the game medium having the predetermined rare degree. The game control method according to claim 1. The computer according to any one of claims 1 to 6 , wherein, when the winning probability is changed, the upper limit value of the winning probability is set based on a relationship between the winning game medium and the game medium having the predetermined rare degree. The game control method according to one item. The main game is a quest or battle,
The computer, in the change of the winning probability, the point given to the player according to the result of a quest or battle in the main game, or the point in the main game determined according to the point given to the player based on the level of the player to change the degree of changing the winning probability, game control method according to any one of claims 1-7. The main game is a quest or battle,
The computer, in the change of the winning probability, the point given to the player according to the result of a quest or battle in the main game, or the point in the main game determined according to the point given to the player The game control method according to any one of claims 1 to 8 , wherein an upper limit value of the winning probability is set based on a level of the player. The computer further executes transmission of a message from the player to a related player related to the player according to a request from the player,
The game control method according to any one of claims 1 to 9 , wherein in changing the winning probability, the degree of changing the winning probability is changed based on the number of messages transmitted by the player to the related player. The computer further executes transmission of a message from the player to a related player related to the player according to a request from the player,
In a variation of the winning probability, the player based on the number of messages sent to the relevant player, it sets the upper limit value of the winning probability, game control method according to any one of claims 1-10. A computer that executes a lottery game,
A storage unit that stores a plurality of game media used in the main game in association with a rare degree of each game medium, and stores a winning probability of the game medium having each rare degree;
A selection unit that executes lottery based on the winning probability, with all of the plurality of game media being subject to lottery every time requested by the player;
An associating unit for storing the winning game media in association with the player and storing the selected game content;
The selection unit determines a winning probability of a game medium having a predetermined rarity in a lottery according to a request from the player based on a predetermined change degree according to the number of times the lottery is executed according to the request from the player. change,
The association unit stores a specific game medium used in the main game in association with the player in addition to the winning game medium when the number of times the lottery has been executed reaches a first predetermined number. It is given to the player by,
The predetermined change degree when the winning game medium is a game medium having a predetermined rare degree is different from the predetermined change degree when the winning game medium is not a game medium having a predetermined rare degree.
A computer characterized by that. A computer control program comprising a storage unit and executing a lottery game,
A plurality of game media used in the main game are stored in the storage unit in association with the rare degree of each game medium, and the winning probability of the game medium having each rare degree is stored in the storage unit,
Each time requested by the player, all of the plurality of game media are subject to lottery, and the lottery is executed based on the winning probability.
The winning game medium is given to the player by storing it in association with the player,
According to the number of times the lottery is executed according to the request from the player, the winning probability of the game medium having a predetermined rare degree in the lottery according to the request from the player is changed based on a predetermined change degree ,
When the number of times the lottery has been executed reaches a first predetermined number, in addition to the winning game media, a specific game media used in the main game is stored in association with the player and given to the player To
Is executed by the computer that,
The predetermined change degree when the winning game medium is a game medium having a predetermined rare degree is different from the predetermined change degree when the winning game medium is not a game medium having a predetermined rare degree.
A control program characterized by that.

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