JP2018171473A - Game system, lottery method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game system and the like, capable of improving amusement of a lottery game.SOLUTION: An item reception unit 243 receives selected items composed of a combination of items, the number of which is predetermined, selected by a user from items already possessed by the user, before a start of a series of Gacha in new type step-up Gacha. When the series of Gacha is started, a lottery unit 242 draws 10 items from lottery condition information in which a winning probability is set depending on each item. A determination unit 244 determines whether or not a previously stipulated combination is established, by combining any of the drawn 10 items with the selected items. When it is determined by the determination unit 244 that the combination is established, a resetting unit 245 resets an increased winning probability to a platinum-rank item in the lottery condition information.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a game system, a lottery method, and a program that can further improve the interest of a lottery game.

Conventionally, various games have been provided in smartphones and game devices. For example, in a social game or the like, a lottery game called “gacha” can be executed.
In this gacha, for example, a lottery is performed based on a winning probability set for each item, and the winning item is given to the user. In addition, since the winning probability is set lower for higher-ranking items (items with higher rarity) that can advance the game more advantageously, even if a lot of gacha is executed, such high-ranking items will be displayed. In some cases, it cannot be acquired.

  Recently, there is also known a continuation lottery game that incorporates a mechanism for appropriately increasing the item winning probability. For example, Patent Document 1 discloses an invention of a game system (information processing system) employing a step-up gacha. This step-up gacha is a continuous lottery game in which the winning probability for a high-rank item increases (steps up) as the same user continuously executes the gacha.

Japanese Patent No. 5817900

  In the invention of Patent Document 1 described above, it is necessary to continuously execute gacha five times for one cycle of step-up, and the price to be consumed (in-game currency, charged item, etc.) increases as the number of times it continues to increase. It becomes. Specifically, the consideration for the fifth time is 30 times higher than that for the first time. In the fifth gacha, it has been decided that one item of high rank (4 stars) will be won, but in order to reach that, at least one cycle (from the first to the fifth) ) To pay the total consideration required for gacha.

For this reason, a light user (for example, a game beginner) who does not have the required total price cannot execute such a step-up gacha.
On the other hand, there are many users who do not execute the step-up gacha among users who have the required total consideration. The reason is that in addition to the opinion that the price is too high, there is a great attraction to the increase in the winning probability. Opinions are also given.
For this reason, there has been a demand for a technology that can further enhance the interest of the lottery game by realizing a new type of step-up gacha that is not caused only by consideration.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a game system, a lottery method, and a program that can further improve the interest of a lottery game.

The game system according to the present invention includes:
A game system for providing a predetermined lottery game,
A receiving unit that accepts a selection item consisting of a combination of a predetermined number of items selected by the user from items already owned by the user, before the start of the lottery game;
When the lottery game is started, a lottery unit for drawing a plurality of items from an item group in which a winning probability is set according to each item;
A determination unit that determines whether or not a pre-defined combination is established by combining any of the plurality of lottery items with the selected item;
A resetting unit that resets the increased winning probability for a high-ranking item in the item group when the determination unit determines that a winning combination has been established;
It is characterized by providing.

  According to the present invention, the interest of the lottery game can be further improved.

It is a block diagram showing an example of the whole composition of the game system concerning this embodiment. It is a block diagram which shows an example of a schematic structure of the typical information processing apparatus with which a game server is implement | achieved. It is a block diagram which shows the schematic structure of the game server which concerns on this embodiment. It is a schematic diagram which shows an example of user management information. It is a schematic diagram which shows an example of lottery condition information. It is a schematic diagram which shows an example of special lottery condition information. It is a schematic diagram which shows an example of combination information. It is a schematic diagram which shows an example of a gacha selection screen. It is a schematic diagram which shows an example of an item reception screen. (A), (b) is a schematic diagram which shows an example of a lottery result screen. It is a block diagram which shows schematic structure of the user terminal which concerns on this embodiment. It is a schematic diagram which shows an example of game management information. It is a flowchart for demonstrating the item lottery process which concerns on this embodiment.

Embodiments of the present invention will be described below. In the following, in order to facilitate understanding, an embodiment in which the present invention is applied to a game system that controls a game (such as a social game) that is executed using a smartphone or the like will be described. For example, the present invention can be similarly applied to control various games executed using an information processing apparatus such as a notebook personal computer, a game machine, or a PDA (Personal Digital Assistant).
In other words, the embodiments described below are for illustrative purposes and do not limit the scope of the present invention. Therefore, those skilled in the art can employ embodiments in which each or all of these elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

(overall structure)
As shown in FIG. 1, the game system 100 according to the embodiment of the present invention is configured such that a game server 200 and a user terminal 300 are communicably connected via the Internet 900.
Although simplified in the figure, it is assumed that there are a large number of user terminals 300 according to the users to be used.

The game server 200 is, for example, a server device (server computer) or the like, and communicates with the user terminal 300 to control the progress of a game (for example, a social game).
In the game controlled by the game server 200, a lottery game called “gacha” can be executed. That is, when execution of gacha is requested from the user terminal 300, the game server 200 performs a lottery from an item group based on a lottery condition in which a winning probability or the like is set for each item. To the terminal 300).
The “item” is not limited to a general item in the game, and will be described below as including, for example, characters, weapons, armor, magic, skills, and the like.

In the game controlled by the game server 200, for example, three types of gachas including “single-shot gacha”, “ten-run gacha”, and “new step-up gacha” can be executed.
A single-shot gacha is a basic gacha that, for example, draws one item per gacha and grants the winning item, and the amount of consideration to be consumed (for example, a coin that is an in-game currency) It is set low.
Ten consecutive gachas are gachas (consecutive gachas) that, for example, perform 10 consecutive gachas at a time, draw a total of 10 items, and give the selected items, but have a high amount of consideration (As an example, it is 10 times the single shot gacha), and one or more items of high rank (platinum rank described later) are always won. Note that the names of the ten consecutive gachas and the number of consecutive gachas (10 times) are examples, and other names (multiple times) may be continuously performed with other names.

The new step-up gacha is, for example, a continuation-type gacha that continues the continuous gacha at least twice, and the item selected by the user before the lottery of the continuous gacha (selected item) and any one selected by the lottery When a pre-defined role is established by the item, the winning probability of the high-ranking item is increased.
In other words, the new step-up gacha allows you to participate in the increase in the winning probability by appropriately selecting items that are likely to be played from the items owned by the user. Accordingly, the game performance is improved as compared with the step-up gacha in which the winning probability increases. In addition, the new step-up gacha does not necessarily increase the winning probability (the winning probability will not increase if the winning combination is not established), so the amount of consideration to be consumed is set lower than the conventional step-up gacha. Yes.
Therefore, even a light user or the like who cannot afford to pay the price can easily challenge the new step-up gacha. In addition, even a user who did not dare to execute a conventional step-up gacha has improved game characteristics, and therefore, it is easy to execute a new step-up gacha.

In the following description, a case where the continuous gacha in the new step-up gacha is 10 times (10 items are selected by lottery) as in the case of the 10-line gacha described above, but the number of continuous gachas is limited to 10 times. It may be any other number. Even so, if the number of consecutive gachas is too small, it will be difficult (or too difficult) to make a winning combination. On the other hand, if the number of consecutive gachas is increased too much, the winning of the combination becomes easy (too easy). Therefore, it is desirable to appropriately determine the number of consecutive gachas in consideration of the game balance.
Also, in the case of continuous gacha in the new step-up gacha, the case where the rule that one or more high-rank items are always won, such as the above-mentioned 10-line gacha, is not explained, but the same rule as the 10-line gacha will be explained below. It may be adopted that one or more high-rank items are always won.

The user terminal 300 is a smartphone or the like, for example, and progresses a game (for example, a social game) while accessing the game server 200 via the Internet 900.
For example, the user terminal 300 requests the game server 200 to execute the selected gacha by selecting any of the various types of gacha described above in accordance with the user's operation and paying the corresponding consideration.
When a gacha is executed in the game server 200 (when an item lottery is performed), the user of the user terminal 300 acquires the winning item. If the item acquired in this way is a high-ranking item, the user can advance the game being played more advantageously by using the item as appropriate in accordance with the game situation.

(Outline configuration of information processing device)
A typical information processing apparatus 400 in which the game server 200 and the user terminal 300 according to the embodiment of the present invention are realized will be described.

  As shown in FIG. 2, the information processing apparatus 400 includes a CPU (Central Processing Unit) 401, a ROM (Read Only Memory) 402, a RAM (Random Access Memory) 403, a storage device 404, a display device 405, A communication device 406 and an operation device 407 are provided.

  The CPU 401 controls the overall operation of the information processing apparatus 400 and is connected to each component to exchange control signals and data.

  The ROM 402 records an IPL (Initial Program Loader) that is executed immediately after the power is turned on, and when this is executed, a predetermined program is read into the RAM 403 and execution of the program by the CPU 401 is started.

  The RAM 403 is for temporarily storing data and programs, and holds programs and data read from the storage device 404 and other data necessary for communication.

  The storage device 404 is an SSD (Solid State Drive), a hard disk, or the like, and stores various data. For example, the storage device 404 stores an operating system program, various applications, associated data, and the like necessary for operation control of the entire information processing apparatus 400.

  The display device 405 includes, for example, a display device such as an LCD (Liquid Crystal Display), a VRAM (Video Random Access Memory) that stores image information to be displayed on the display device, and an image process for processing the image information. Part. The image processing unit processes the data read from the storage device 404 or the data processed by the CPU 401, and then stores the data in the VRAM to generate image information.

  The communication device 406 performs wireless communication using a mobile communication network, a wireless local area network (LAN), or the like. Note that the communication device 406 may perform wired communication using a wired LAN or the like.

  The operation device 407 is a touch screen, a touch pad, a button, a keyboard, a mouse, or the like, and receives a user operation. Note that a user operation may be received by voice.

  Hereinafter, the configuration and the like of the game server 200 realized in the information processing apparatus 400 will be described with reference to FIGS. When the information processing apparatus 400 is turned on, a program that functions as the game server 200 (the server apparatus according to the present invention) is executed, and the game server 200 according to the present embodiment is realized.

(Outline configuration of game server)
FIG. 3 is a block diagram showing a schematic configuration of the game server 200 according to the present embodiment. As illustrated, the game server 200 includes a reception unit 210, a transmission unit 220, a storage unit 230, and a control unit 240, and supports the progress of the game executed on the user terminal 300.

The receiving unit 210 receives various information transmitted from the user terminal 300 via the Internet 900.
For example, the receiving unit 210 receives from the user terminal 300 various operation information during the game and item selection information in a menu or the like. The selection information includes information that requests execution of any of the above-described gacha. In addition, when the new step-up gacha is executed, the receiving unit 210 selects the selection item (the user plays a role) sent from the user terminal 300 before the start of the continuous gacha (each time continuous gacha) in the new step-up gacha. Information on the item selected to be established) is also received.
The communication device 406 and the like described above can function as such a receiving unit 210.

The transmission unit 220 transmits various information to the user terminal 300 via the Internet 900.
For example, the transmission unit 220 transmits response information corresponding to the operation information and various screens (such as an item reception screen and a lottery result screen described later) corresponding to the selection information to the user terminal 300.
The communication device 406 and the like described above can function as such a transmission unit 220.

  The storage unit 230 stores various information necessary for the progress control of the game. For example, the storage unit 230 stores user management information 231, item group 232, lottery condition information 233, special lottery condition information 234, combination information 235, and the like.

The user management information 231 is information for managing the user of each user terminal 300, and includes information as shown in FIG. 4 as an example.
That is, the user management information 231 includes a user ID 231a, a level value 231b, a coin balance 231c, an owned item 231d, a play time 231e, and the like.
The level value 231b is a value indicating the degree of progress of the game for the user (user of the user terminal 300). Instead of such a level value 231b, a game rank or the like may be stored.
Further, the coin balance 231c indicates the balance of coins (which is an example and may be another name) that is the in-game currency acquired by the user. In the following, a case where a predetermined amount of coins is paid (consumed) as consideration for executing gacha will be described. However, even if gacha is executed by paying a consideration different from such in-game currency. Good. For example, when a billing item (in-game gem purchased separately by the user) is used as a price for executing the gacha, the balance of such billing item is also stored in the user management information 231 as appropriate.
The owned item 231d is information (item ID) for identifying an item owned by the user. In principle, the items owned by the user are given from the game server 200 by executing the gacha, but separately from the gacha, according to the progress of the game (for example, the presented quest is achieved). Etc.), the item may be acquired. In this case, for example, an item ID may be given a branch number so that the acquisition reason can be identified by the branch number.
And the play time 231e is a value which shows the accumulation play time which the user played the game. Note that an average play time per unit period may be stored instead of the accumulated play time.

  Returning to FIG. 3, the item group 232 is information on all items that can be acquired by the user in the game. The item group 232 includes items given to the user by gacha, and such items have a winning probability as described later.

The lottery condition information 233 is information generated by the control unit 240 (a lottery condition generation unit 241 described later) when a gacha is executed.
The lottery condition information 233 includes information as shown in FIG. 5 as an example.
That is, the lottery condition information 233 includes an item ID 233a, a rank 233b, an attribute 233c, a winning probability 233d, and the like.
The rank 233b indicates the grade (class) of items in the game. For example, "Platinum" (platinum rank), "Gold" (gold rank), "Silver" (silver rank) It is prescribed. When a high-ranking platinum-rank item is used in a game (including a character operated by a user), the game can be advanced more advantageously. Further, instead of using such a rank, a rare degree may be used. In that case, for example, “super rare (SR)”, “rare (R)”, and “common (C)” may be defined in descending order of the rare degree.
The attribute 233c indicates the characteristics of the item in the game. For example, the effect (attack power, defense power, etc.) when using the item differs depending on the game situation.
The winning probability 233d indicates the probability that the item will win when the control unit 240 (the lottery unit 242 described later) performs the lottery. The higher the rank (rank 233b), the lower the probability. Has been. In other words, when a gacha is executed, platinum rank items are much harder to win.
When a new step-up gacha is executed, if a pre-defined role is established by the item selected by the user and any item won by lottery, the winning probability 233d of the platinum rank item The value is increased and updated (reset) by the control unit 240 (a resetting unit 245 described later). The combination will be described together with combination information 235 described later.

Returning to FIG. 3, the special lottery condition information 234 is information further generated by the control unit 240 when the ten-run gacha is executed.
The special lottery condition information 234 includes information as shown in FIG. 6 as an example. That is, like the lottery condition information 233 described above, the special lottery condition information 234 includes the item ID 234a, the rank 234b, the attribute 234c, the winning probability 234d, and the like. The special lottery condition information 234 is different from the lottery condition information 233 in that the special lottery condition information 234 is composed of only platinum rank items.
As described above, it is stipulated that a 10-gacha gacha always wins one platinum-ranked item at any one of 10 times. Therefore, in the 10-line gacha, a lottery based on such special lottery condition information 234 is performed only at the timing of one time, and one platinum rank item is won.

Returning to FIG. 3, when the new step-up gacha is executed, the combination information 235 indicates whether or not a combination is established with the item (selected item) selected by the user and any item selected by lottery. It is information used for discrimination. It should be noted that only the item selected by the user does not establish a winning combination, and the winning combination is always established by a combination of the item selected by the user and one of the lottery items.
The combination information 235 includes information as shown in FIG. 7 as an example.
That is, the combination information 235 includes a type 235a, a configuration item 235b, an increase rate 235c, a replacement item 235d, and the like.
Type 235a is a type of combination. For example, duplicate types A and B are combinations that are established when a predetermined number (three as an example) of the same items are arranged, and attribute types D and E are the same. The combination is established when a predetermined number (three as an example) of the attribute items are arranged. The association types G and H are combinations formed when a predetermined number (three as an example) of related items are arranged. .
Further, the configuration item 235b is identification information of an item that constitutes that type of combination.
If the same composition as these combinations matches the combination of the item selected by the user (two selected items) and any one item selected (one) (as an example, the composition of the combination is three ), The role is established. For example, if the user selects two items of “F001” as selection items, and the item of “F001” is included in the selected items (if one or more items are included), the duplicate type A A combination of (three F001) is established.
As will be described later, in the new step-up gacha, the number of items that can be selected by the user (the total number of selected items) increases one by one from the initial value of 2 as the number of continuous gachas continues. It is prescribed as follows. For this reason, when the number of continued operations increases to some extent, a plurality of combinations may be formed at the same time.
As an example, before the start of the third consecutive gacha, the user can select a total of four selected items from the possessed items. For example, the user selects two items “F001” and two items “F002” as selection items, and among the selected items, the items “F001” and “F002” Are included, two combinations of duplicate type A (3 for F001 and 3 for F002) are established. Furthermore, if the item “F006” is included in the selected items, the role of the attribute type D (F001-F002-F006) is also established.
As described above, when two items “F001” and two items “F002” are selected as selection items, an item “F001”, an item “F002”, and an item “F006” are selected. Waiting for three faces, the probability of winning a combination increases.
Further, the rate of increase 235c is defined as a rate of increasing the winning probability of a platinum-ranked item (platinum-ranked winning probability 233d in the lottery condition information 233 of FIG. 5) when that type of combination is established. For example, when a combination of overlapping type A is established, the winning probability (current winning probability) of the platinum rank item is increased by 50%. In addition, when a plurality of winning combinations are established, for example, the winning probability of the item of the platinum rank is increased by the sum of the ratios. That is, when the combination of the duplicate type A and the combination of the attribute type D is established, the winning probability of the platinum rank item is increased by 120% (50% + 70% = 120%).
The exchange item 235d defines item identification information that can be exchanged for a plurality of items constituting a combination when that type of combination is established. In this exchange item 235d, for example, an item having a gold rank or higher is defined. The combination information 235 shows a case where only one item (identification information) is specified for the exchange item 235d. However, one item is specified for the exchange item 235d, and a plurality of items constituting the combination are defined. An item may be exchanged for a plurality of items (for example, an item of a gold rank or higher).

In addition to this, the storage unit 230 stores various information necessary for the processing of the control unit 240. For example, the storage unit 230 also stores notification information notified to the user in the game, various event information, and the like.
The RAM 403, the storage device 404, and the like described above can function as such a storage unit 230.

Returning to FIG. 3, the control unit 240 controls the entire game server 200 and supports the progress of the game executed on the user terminal 300.
The control unit 240 includes, for example, a lottery condition generation unit 241, a lottery unit 242, an item reception unit 243, a determination unit 244, a resetting unit 245, a presentation unit 246, an item granting unit 247, and the like. In the following, in order to facilitate the understanding of the invention, the presentation unit 246 on the game server 200 side generates various screens (such as an item reception screen and a lottery result screen described later) and presents them to the user terminal 300. However, this is an example, and various screens may be presented on the user terminal 300 by other methods. For example, as will be described later, the game server 200 and the user terminal 300 may cooperate with each other, and finally various screens may be generated on the user terminal 300 side.

When the user terminal 300 requests execution of gacha, the lottery condition generation unit 241 generates information that defines the lottery conditions.
For example, the lottery condition generation unit 241 extracts a predetermined number of items from the item group 232 and generates the lottery condition information 233 as shown in FIG. 5 described above. When the composition ratio of each rank in the lottery condition information 233 is determined (for example, platinum rank is 10%, gold rank is 30%, silver rank is 60%, etc.), the lottery condition generation unit 241 Are extracted from the item group 232 by the number corresponding to the composition ratio, and the lottery condition information 233 is generated. At that time, the lottery condition generation unit 241 may appropriately change the method of extracting items from the item group 232 according to the level value of the user who requested execution of the gacha (the level value 231b of the user management information 231).
When ten consecutive gachas are requested, the lottery condition generation unit 241 further extracts a predetermined number of platinum rank items from the item group 232 and generates special lottery condition information 234 as shown in FIG. 6 described above. To do.

The lottery unit 242 executes a lottery game based on lottery conditions in which the winning probability of each item is defined.
That is, the lottery unit 242 randomly draws items based on the lottery condition information 233 generated by the lottery condition generation unit 241.
For example, when execution of a single shot gacha is requested, the lottery unit 242 performs lottery of one item based on the lottery condition information 233.
In addition, when execution of 10 consecutive gachas is requested, in 9 out of 10 times, the lottery unit 242 performs lottery for each item (9 items in total) based on the lottery condition information 233. Do. Then, in one out of ten times, the lottery unit 242 performs lottery of one item based on the special lottery condition information 234.
When the execution of the new step-up gacha is requested, the lottery unit 242 performs lottery of a total of 10 items based on the lottery condition information 233 in one continuous gacha. In addition, after the consecutive gacha lottery in the new step-up gacha, when the above-described combination (at least one combination) is established, the resetting unit 245 determines the winning probability for the platinum rank item as described below. It is going to be raised.

When the new step-up gacha is executed, the item reception unit 243 combines the items selected by the user from among the items already owned by the user before the lottery of the consecutive gacha (each time continuous gacha). Accepts selected items consisting of
For example, the item reception unit 243 receives a predetermined number of selection items (for example, two initial values) selected by the user in a state where an item reception screen described later is presented on the user terminal 300. Note that the item accepting unit 243 can accept, for example, the number of selection items increased by one as the number of consecutive gachas increases.

When the new step-up gacha is executed, the determination unit 244 combines the selection item received before the lottery by the item reception unit 243 and any of the ten items that the lottery unit 242 has selected and won. Then, it is determined whether or not a predetermined combination is established.
That is, the determination unit 244 matches the combination of the selected item selected by the user and any item won by the continuous gacha with any combination of the combinations specified in the combination information 235 in FIG. Determine whether to do.
For example, if the user selects two items of “F001” as selection items, continuous gacha is performed, and if the item of “F001” is included in the selected items (one or more) If included, the determination unit 244 determines that the duplicate type A combination (three F001s) in the combination information 235 in FIG. 7 has been established.
Further, the determination unit 244 can also determine a combination that has been established in an overlapping manner. For example, a continuous gacha is performed in a state where the user selects two items “F001” and two items “F002” as selection items, and “F001” is selected among the selected items. If the item “F002” and the item “F002” are respectively included, the determination unit 244 determines that two duplicate types A (three F001 and three F002) in the combination information 235 have been established. Furthermore, if the item “F006” is included in the selected items, the determination unit 244 further determines that the role of the attribute type D (F001-F002-F006) is also established.

When the determination unit 244 determines that the winning combination has been established, the resetting unit 245 increases and resets the winning probability of the platinum rank item (platinum rank winning probability 233d in the lottery condition information 233).
That is, the resetting unit 245 increases the winning probability for the platinum rank item according to the increase rate 235c (the increase rate 235c corresponding to the established combination) in the combination information 235 in FIG. Reset to.
For example, when a duplicate type A combination is established in the combination information 235, the resetting unit 245 resets the winning probability (current winning probability) of the platinum rank item by 50%. When the combination of duplicate type A and combination of attribute type D in the combination information 235 is established, the resetting unit 245 sets the winning probability of the platinum rank item to 120% (50% + 70% = 120%) Increase and reset.
That is, the resetting unit 245 changes the rate of increase in the winning probability according to the type of winning combination determined by the determining unit 244 or the number of winning combinations.
Even if it is determined that a winning combination has not been established, the winning probability that has already been raised is maintained while the user continues the continuous gacha.

The presentation unit 246 generates various screens and presents them on the user terminal 300.
For example, the presentation unit 246 displays a screen for allowing the user to select a gacha, a screen for accepting an item selected by the user before the start of continuous gacha in the new step-up gacha, and a screen for appropriately informing the lottery result by the gacha. Are generated and presented to the user terminal 300.

Specifically, the presentation unit 246 generates a gacha selection screen 510 as shown in FIG. 8 and presents it on the user terminal 300.
This gacha selection screen 510 includes a selection button 511 for selecting a single shot gacha, a selection button 512 for selecting a 10-unit gacha, and a selection button 513 for selecting a new step-up gacha. Yes. Then, when any of the selection buttons 511 to 513 is pressed (touched or clicked) by the user in a state where the gacha selection screen 510 is presented on the user terminal 300, the corresponding gacha is executed on the game server 200. Required.

In addition, when the new step-up gacha is executed, the presentation unit 246 generates an item reception screen 520 as illustrated in FIG. 9 and presents it to the user terminal 300 before the start of the continuous gacha.
This item reception screen 520 is a screen for receiving an item (selected item) selected by the user before the start of each successive gacha in the new step-up gacha.
In the selection area 521 on the item reception screen 520, items owned by the user are displayed so as to be selectable. The user can freely select a predetermined number (four in the case of FIG. 9) of items (items for which a role is to be established) from the items in the selection area 521.
Then, when the determination button 522 is pressed in a state where a predetermined number of items are selected by the user, information on the selected item is transmitted from the user terminal 300 to the game server 200.

In addition, when the new step-up gacha is executed, the presentation unit 246 generates a lottery result screen 530 as illustrated in FIG. 10 and presents the lottery result screen 530 to the user terminal 300 after lottery of the continuous gacha.
Note that FIG. 10A is a lottery result screen 530 when a winning combination is established, and also notifies that the winning probability of the platinum rank in the next new step-up gacha has increased. On the other hand, FIG. 10B is a lottery result screen 530 when a winning combination is not established.
In addition, the presentation unit 246 generates a similar lottery result screen and presents it to the user terminal 300 even when a single shot gacha or a 10-game gacha is executed.

Returning to FIG. 3, the item assigning unit 247 gives the user the item selected by the lottery unit 242. That is, the item granting unit 247 adds the identification information (item ID) of the selected item to the corresponding user owned item 231d in the user management information 231 described above.
When the new step-up gacha is executed and the above-mentioned combination is established, the item granting unit 247 sets the plurality of items constituting the combination to at least one certain rank (for example, gold It may be exchanged for an item of rank or higher) and given to the user. For example, the item granting unit 247 refers to the exchange item 235d in the combination information 235 in FIG. 7 and exchanges a plurality of items constituting the combination with items indicated by the corresponding exchange item 235d, Give. In the combination information 235, one item is specified for the exchange item 235d, but a plurality of items are specified for the exchange item 235d, and a plurality of items constituting the combination are exchanged with a plurality of items. It may be.

In addition to this, the control unit 240 also collects compensation for the execution of the gacha. That is, the control unit 240 performs processing such as subtracting the amount of consideration from the corresponding user's coin balance 231c in the user management information 231.
The above-described CPU 401 or the like can function as the control unit 240 having such a configuration.

  Hereinafter, the configuration and the like of the user terminal 300 realized in the information processing apparatus 400 will be described with reference to FIGS. When the information processing apparatus 400 is turned on, a program that functions as the user terminal 300 (terminal apparatus according to the present invention) is executed, and the user terminal 300 according to the present embodiment is realized.

(Outline configuration of user terminal)
FIG. 11 is a block diagram illustrating a schematic configuration of the user terminal 300 according to the present embodiment. As illustrated, the user terminal 300 includes an operation reception unit 310, a transmission / reception unit 320, a storage unit 330, a control unit 340, and a display unit 350. For example, the user terminal 300 can appropriately communicate with the game server 200 while playing a game. To proceed.

The operation reception unit 310 receives various operations from the user. For example, the operation reception unit 310 receives an operation from the user based on information obtained from a touch screen or the like.
The operation device 407 and the like described above can function as such an operation reception unit 310.

The transmission / reception unit 320 accesses the game server 200 via the Internet 900 and transmits / receives information necessary for the progress of the game.
For example, the transmission / reception unit 320 receives various screens transmitted from the game server 200 (the gacha selection screen 510, the item reception screen 520, and the lottery result screen 530 described above).
In addition, the transmission / reception unit 320 transmits selection information (selection of items etc.) corresponding to various screens to the game server 200.
The communication device 406 and the like described above can function as such a transmission / reception unit 320.

  The storage unit 330 stores, for example, game management information 331 and the like.

For example, as shown in FIG. 12, the game management information 331 includes a user ID 331a, a level value 331b, a coin balance 331c, an owned item 331d, a play time 331e, and the like. That is, the same information as the above-described user management information 231 is also managed on the user terminal 300 side.
The information stored in the game management information 331 is appropriately synchronized with the user management information 231 stored on the game server 200 side, as will be described later.

In addition to this, the storage unit 330 also stores image data such as items and characters in the game. As will be described later, when the user terminal 300 side (screen generation unit 342) generates the lottery result screen 530 and the like, the storage unit 330 also stores various icon images and the like.
The storage device 404 and the like described above can function as such a storage unit 330.

  Returning to FIG. 11, the control unit 340 controls the entire user terminal 300. The control unit 340 includes, for example, a game progression unit 341, a screen generation unit 342, and the like.

The game progression unit 341 executes the game, and advances the game according to the user operation received by the operation reception unit 310. At that time, the game progression unit 341 transmits / receives data to / from the game server 200 through the transmission / reception unit 320, for example, information managed by the game management information 331 and information managed by the user management information 231 ( The corresponding user information).
In addition, when any of the operation buttons 511 to 513 is pressed by the user while the above-described gacha selection screen 510 in FIG. 8 is displayed on the display unit 350, the game progress unit 341 causes the game server 200 to gacha. Request execution.

The screen generation unit 342 generates a game screen or the like. That is, various screens for the user to advance the game are generated.
As described above, the gacha selection screen 510, the item reception screen 520, and the lottery result screen 530 are generated on the game server 200 side (presentation unit 246), but instead of the presentation unit 246, the screen The generation unit 342 may generate these screens.
In that case, only the element data handled as a variable is sent from the game server 200 side to the user terminal 300, and when the element data is received through the transmission / reception unit 320, the screen generation unit 342 displays the element data and the storage unit 330. Various screens are generated based on the information stored in the screen. As an example, the case where the lottery result screen 530 is generated will be described. From the game server 200 side to the user terminal 300, information on the lottery result by the lottery unit 242 (for example, information such as each item ID, rank, and attribute) ) Only. Then, the screen generation unit 342 generates a lottery result screen 530 as shown in FIG. 10 based on the information related to the lottery result and the item images, icon images, and the like stored in the storage unit 330. That is, when the winning combination is established in the continuous gacha in the new step-up gacha, the screen generation unit 342 generates a lottery result screen 530 as shown in FIG. On the other hand, when the winning combination is not established, in the user terminal 300, the screen generation unit 342 generates a lottery result screen 530 as shown in FIG.

In addition to this, the control unit 340 appropriately executes processing necessary for the progress of the game, such as superimposing notification information and the like sent from the game server 200 on the game screen and displaying them on the display unit 350.
The above-described CPU 401 and the like can function as the control unit 340 having such a configuration.

The display unit 350 displays the game screen generated by the screen generation unit 342. The display unit 350 also displays various screens sent from the game server 200 (gacha selection screen 510, item reception screen 520, lottery result screen 530, etc.). As described above, these various screens may be generated on the user terminal 300 side, and even in that case, the display unit 350 displays the various screens generated by the screen generation unit 342.
Note that the display device 405 and the like described above can function as such a display unit 350.

(Game server operation)
The operation of the game server 200 configured as shown in FIG. 3 will be described below with reference to FIG. The game server 200 controls the overall progress of the game executed on the user terminal 300. Among them, the item lottery process in the most characteristic new step-up gacha will be described.
FIG. 13 is a flowchart showing the flow of an item lottery process according to the present embodiment. This item lottery process is a process when the game server 200 requests execution of a new step-up gacha. For example, in a plurality of user terminals 300 on which a gacha selection screen 510 as shown in FIG. 8 is displayed, This is started when the selection button 513 is pressed.

First, the game server 200 generates lottery condition information (step S11).
That is, the control unit 240 (lottery condition generation unit 241) extracts the items of each rank from the item group 232 by the number corresponding to the composition ratio, and generates lottery condition information 233 as shown in FIG. Note that the winning probability values in the lottery condition information 233 are all initial values.

The game server 200 receives the item selected by the user (step S12).
That is, when the control unit 240 (presentation unit 246) presents the item reception screen 520 as shown in FIG. 9 to the user terminal 300, when the user selects a predetermined number of items, the control unit 240 (Item reception part 243) receives the selected selection item.
In the example of the item reception screen 520 in FIG. 9, the control unit 240 receives a total of four selection items that are increased by two according to the number of consecutive gachas from two initial values.

The game server 200 performs lottery of items (step S13).
That is, the control unit 240 (lottery unit 242) draws a total of 10 items in a continuous gacha based on lottery condition information 233 as shown in FIG.

The game server 200 determines whether or not a winning combination has been established (step S14).
In other words, the control unit 240 (discriminating unit 244) is defined in advance by combining the item (selected item) received in step S12 with any of the ten items that are selected and won in step S13. It is determined whether or not a combination is established.
That is, the control unit 240 determines that the combination of the selected item selected by the user and any item won by the continuous gacha matches the configuration of any combination specified in the combination information 235 in FIG. Determine whether to do.
For example, if the user selects two items of “F001” as selection items, continuous gacha is performed, and if the item of “F001” is included in the selected items (one or more) If included, the control unit 240 determines that the duplicate type A combination (three F001s) in the combination information 235 in FIG. 7 has been established.
Note that the control unit 240 can also determine the duplicated winning combination. For example, the user selects two items “F001” and two items “F002” as selection items. If the item “F001” and the item “F002” are respectively included in the selected items, the duplicate type A (F001 is 3 in the combination information 235). It is determined that two roles (three pieces, F002 pieces) have been established. Further, if the item “F006” is included in the selected items, the control unit 240 further determines that the role of the attribute type D (F001-F002-F006) is also established.

  If it is determined that the winning combination has not been established (step S14; No), the game server 200 advances the process to step S16 described later.

On the other hand, when it is determined that a winning combination has been established (step S14; Yes), the game server 200 increases the winning probability of the platinum rank item (step S15).
That is, the control unit 240 (resetting unit 245) raises and resets the platinum rank winning probability 233d in the lottery condition information 233 as shown in FIG.
For example, when the duplicate type A combination in the combination information 235 is established, the control unit 240 increases the winning probability (current winning probability) of the item of the platinum rank by 50% and resets it. In addition, when the combination of duplicate type A and combination of attribute type D in the combination information 235 is established, the control unit 240 sets the winning probability of the platinum rank item to 120% (50% + 70% = 120). %) Increase and reset.
That is, the control unit 240 changes the rate of increase in the winning probability according to the type of the combination determined to be established in step S14 or the number of combinations.
Even if it is determined in step S14 that the winning combination has not been established, the winning probability that has already been raised is maintained while the user continues the continuous gacha.

The game server 200 presents the winning result to the user (step S16).
That is, the control part 240 (presentation part 246) produces | generates the lottery result screen 530 as shown in FIG.
Note that FIG. 10A is a lottery result screen 530 when a winning combination is established, and also notifies that the winning probability of the platinum rank has increased. On the other hand, FIG. 10B is a lottery result screen 530 when a winning combination is not established.

The game server 200 gives the winning item to the user (step S17).
That is, the control unit 240 (item giving unit 247) gives the user the item that has been selected and won in the above-described step S13.
That is, the control unit 240 adds the identification information (item ID) of the winning item to the possessed item 231d of the corresponding user in the user management information 231 in FIG.
When it is determined in step S14 described above that a winning combination has been established, the control unit 240 determines that the plurality of items constituting the winning combination is at least one fixed rank (for example, a gold rank or higher). It may be exchanged for the item and given to the user. For example, the control unit 240 refers to the exchange item 235d in the combination information 235 in FIG. 7 and exchanges a plurality of items constituting the combination with an item indicated by the corresponding exchange item 235d to give to the user. To do. In the combination information 235, one item is specified for the exchange item 235d, but a plurality of items are specified for the exchange item 235d, and a plurality of items constituting the combination are exchanged with a plurality of items. It may be.

The game server 200 confirms with the user whether or not to continue the continuous gacha (step S18).
For example, the control unit 240 (presentation unit 246) presents, for example, a confirmation screen for confirming whether or not to continue the continuous gacha (new step-up gacha) as it is, and confirms the user's intention.
Then, when it is confirmed that the game server 200 continues the continuous gacha (step S18; Yes), the process returns to step S12 described above, and the processes from step S12 to step S18 are repeated again.
On the other hand, when it is confirmed that the continuous gacha is not continued (step S18; No), the game server 200 ends the item lottery process.

  In such an item lottery process, the user himself can be directly involved in increasing the winning probability (winning probability of platinum rank items), so the user carefully selects the selected items, and even in the lottery results, the platinum rank items are Instead of paying attention only to whether or not the winner is won, the user can enjoy the lottery game noting whether the winning combination has been established.

  As a result, the interest of the lottery game can be further improved.

(Other embodiments)
In the above embodiment, in the item lottery process of FIG. 13, when it is determined in step S14 that a winning combination has been established, the winning probability of the platinum rank item is increased in step S15, but step S18 After it is confirmed that the continuous gacha is continued at, the winning probability of the item of the platinum rank may be increased.
In other words, if the winning combination is determined and the user continues the continuous gacha (new step-up gacha), the user only needs to increase the winning probability of the platinum rank item, so the user continues the gacha. If not, it is possible to prevent unnecessary processing from being performed.

In the above embodiment, the combination information 235 as shown in FIG. 7 is used to determine whether or not a combination is established, to increase the winning probability when a combination is established, and to Although the case where the effect of the item and the item of a certain rank or more is performed has been described, such a method using the role information 235 is an example, and the winning probability may be increased by another method. .
For example, when the user selects n items X, n items Y, and n items Z as selection items, if the selected items include items X, Y, and Z, respectively. It is assumed that the combination “n + 1 items X, n + 1 items Y, n + 1 items Z” is established. That is, the control unit 240 (resetting unit 245) increases the winning probability of the platinum rank according to the number (value of n) of the items that make up the combination. At that time, the control unit 240 may decrease the winning probabilities of the items X, Y, and Z, respectively.
In addition, the ratio of increasing the probability of winning the platinum rank when a winning combination is established may be specified depending on the strength of the winning combination. In addition, a role that is difficult to be established is a strong role, and conversely, a role that is easily established is a weak role. For example, the role “item X is n” and “item X is n + 1” have a strength relationship of “item X is n” <“item X is n + 1”. Also, a role of “item X is n + 1”, a role of “item X is n + 1, item Y is n + 1”, and “item X is n + 1, item Y is n + 1, item Z is n + 1” A role is a strength of “item X is n + 1” <“item X is n + 1, item Y is n + 1” <“item X is n + 1, item Y is n + 1, item Z is n + 1” It shall be a relationship.
For this reason, the rate of increase in the winning probability is defined low for a role that is easily established (that is, a weak role), and conversely, the rate of increase in the winning probability is defined for a role that is difficult to be established (that is, a strong role).
In that case, the control part 240 can change the ratio which raises a winning probability according to the strength of the established combination like these.
Moreover, you may make it form a deck with the item (selected item) which the user selected. And the priority of establishment may differ according to the strength of the combination. For example, if the user combines a deck α having “10 items X and 10 items Y” and a deck β having “5 items X”, and the item that has been selected includes item X The deck β is exhausted (for example, items constituting the deck β are deleted by exchanging with a predetermined amount of coins). In addition, if items X and Y are included in the selected item, deck α that is stronger than deck β is exhausted. Moreover, if the item Y is included in the item won in the current lottery and the item X is included in the item won in the next lottery, the deck α may be exhausted.

  In the above embodiment, the case where the dedicated game server 200 or the user terminal 300 is used has been described. However, an operation program that defines the operation of the game server 200 or the user terminal 300 is used as an existing personal computer, information terminal device, It is possible to make the personal computer function as the game server 200 or the user terminal 300 by applying to the above.

  In addition, such a program distribution method is arbitrary, for example, a computer-readable medium such as a CD-ROM (Compact Disc Read-Only Memory), a DVD (Digital Versatile Disc), an MO (Magneto Optical Disc), or a memory card. It may be stored in a recording medium and distributed, or distributed via a communication network such as the Internet.

(Summary)
A game system according to a first aspect of the present invention is a game system that provides a predetermined lottery game, and includes a reception unit, a lottery unit, a determination unit, and a resetting unit.

A reception part receives the selection item which consists of a combination of the predetermined number of items which the user selected from the items which the user already has before the start of a lottery game. When the lottery game is started, the lottery unit draws a plurality of items from the item group in which the winning probability is set according to each item.
Further, the determination unit determines whether or not the prescribed combination is established by combining any of the plurality of lottery items with the selected item. Then, when the determination unit determines that the winning combination is established, the resetting unit resets the increased winning probability for the high-ranked item (for example, the platinum-ranked item) in the item group.

In this way, since the user himself can be directly involved in the increase in the winning probability, the user carefully selects the selected item, and in the lottery result, the user does not pay attention only to whether or not a high-ranking item has been won. The lottery game will be enjoyed by paying attention to whether or not is established.
As a result, the interest of the lottery game can be further improved.

In the above game system, the resetting unit resets the increased winning probability for a high-ranked item when the determination unit determines the formation of the winning combination and the user continues the lottery game. It may be.
In this case, for example, in order to reset the winning probability that increased the winning probability of the item of the platinum rank, only when the determination unit determines the formation of the winning combination and the user continues the lottery game, When the lottery game is not continued, unnecessary processing can be prevented from being performed.

Further, in the above game system, the determination unit determines whether any combination including a combination that can be established in duplicate among a plurality of types of defined combinations is established, and the resetting unit includes: The rate of increase in the winning probability may be changed according to the type of the combination determined to be established by the determination unit or the number of combinations.
For example, a winning rate is specified to be low for easy-to-make (weak) roles, and conversely, a winning rate is set to be high for difficult-to-make (strong) roles. In this case, the user can select the selected item with a solid strategy, select the selected item with a big hole aim, select the selected item with his own style, pay attention to the lottery, and enjoy the result with great pleasure.

Further, in the above game system, it is determined whether or not a combination that equalizes a predetermined number or more of the same items is established, and the resetting unit determines the winning probability according to the number of the same items in the combination determined to be established by the determination unit. You may make it change the raise rate of.
In this case, for example, it is possible to aim to increase the rate of increase in the winning probability by including, in the selected item, items that are easily won by a plurality of the same item.

Further, in the above game system, the determination unit determines whether or not any combination having a different priority of formation according to the strength of the combination among the plurality of types of defined combinations is established, and is reset. The unit may change the increasing rate of the winning probability according to the strength of the combination determined to be established by the determination unit.
In this case, for example, since the winning combination changes according to the winning item and the combination thereof, it is possible to pay more attention to the lottery and enjoy the diversity of results.

In the above game system, the resetting unit may maintain the increased winning probability even when the determination unit does not determine the formation of the winning combination while the user continues the lottery game. .
In this case, the time when the winning combination is not established does not stop, and the user can easily continue the lottery game.

In the above game system, the accepting unit may accept a selected item in which the number of selectable items is increased as the number of times the user continues the lottery game increases.
In this case, as the lottery game is continued, the number of selected items increases, so that, for example, two-sided waiting, three-sided waiting, and the like can be performed, and a combination can be easily established.

The game system further includes a grant unit that grants to the user a plurality of items that the lottery lottery has drawn, and the grant unit, when the determination of the formation of the combination is made by the determination unit, The item may be exchanged for at least one item of a certain rank or higher and given to the user.
For example, when a role is established and exchanged for an item of a gold rank or higher, a user is composed of silver rank items (items that are relatively owned and easy to draw). As a result, the remaining low rank items can be reduced, and higher rank items can be acquired.

  A lottery method according to a second aspect of the present invention is a lottery method for a server device that provides a predetermined lottery game, and includes a reception step, a lottery step, a determination step, and a resetting step.

  That is, the lottery method according to the second aspect can further improve the interest of the lottery game, similarly to the game system according to the first aspect.

  The program according to the third aspect of the present invention causes a computer that provides a predetermined lottery game to function as a reception unit, a lottery unit, a determination unit, and a resetting unit.

  That is, the program according to the third aspect can further improve the interest of the lottery game, similarly to the game system according to the first aspect.

  As described above, according to the present invention, it is possible to provide a game system, a lottery method, and a program that can further improve the interest of a lottery game.

DESCRIPTION OF SYMBOLS 100 Game system 200 Game server 210 Reception part 220 Transmission part 230 Storage part 231 User management information 232 Item group 233 Lottery condition information 234 Special lottery condition information 235 Role information 240 Control part 241 Lottery condition production | generation part 242 Lottery part 243 Item reception part 244 Discriminating unit 245 Resetting unit 246 Presenting unit 247 Item giving unit 300 User terminal 310 Operation receiving unit 320 Transmission / reception unit 330 Storage unit 331 Game management information 340 Control unit 341 Game progress unit 342 Screen generation unit 350 Display unit 400 Information processing device 401 CPU
402 ROM
403 RAM
404 Storage Device 405 Display Device 406 Communication Device 407 Operation Device 900 Internet

Claims (10)

A game system for providing a predetermined lottery game,
A receiving unit that accepts a selection item consisting of a combination of a predetermined number of items selected by the user from items already owned by the user, before the start of the lottery game;
When the lottery game is started, a lottery unit for drawing a plurality of items from an item group in which a winning probability is set according to each item;
A determination unit that determines whether or not a pre-defined combination is established by combining any of the plurality of lottery items with the selected item;
A resetting unit that resets the increased winning probability for a high-ranking item in the item group when the determination unit determines that a winning combination has been established;
A game system comprising: The resetting unit resets the winning probability raised for the high-ranked item when the determination unit determines the formation of a winning combination and the user continues the lottery game,
The game system according to claim 1. The determination unit determines whether or not any combination including a combination that can be established in duplicate among a plurality of types of combinations defined,
The resetting unit changes the increasing rate of the winning probability according to the type of the combination determined to be established by the determination unit or the number of combinations.
The game system according to claim 1 or 2, wherein The determination unit determines whether or not a combination of aligning the same item more than a prescribed number is established,
The resetting unit changes an increase rate of the winning probability according to the number of the same items in the combination determined to be established by the determining unit,
The game system according to claim 1 or 2, wherein The determining unit determines whether or not any combination having a different priority in accordance with the strength of the combination is established among the plurality of types of defined roles,
The resetting unit changes an increase rate of the winning probability according to the strength of the combination determined to be established by the determination unit.
The game system according to claim 1 or 2, wherein The resetting unit maintains the increased winning probability while the user continues the lottery game, even if the determination unit does not determine the formation of a winning combination,
The game system according to any one of claims 1 to 5, wherein: The accepting unit accepts the selected item in which the number of items that can be selected is increased as the number of times the user continues the lottery game increases.
The game system according to any one of claims 1 to 6, wherein: A provision unit that provides the user with a plurality of items selected by the lottery unit;
When the determination unit determines that a combination is established, the granting unit exchanges a plurality of items constituting the combination with at least one item of a certain rank or more and grants the user,
The game system according to claim 1, wherein the game system is any one of the following. A server device lottery method for providing a predetermined lottery game,
A receiving step of accepting a selection item consisting of a combination of a predetermined number of items selected by the user from items already owned by the user before the start of the lottery game;
When the lottery game is started, a lottery step for drawing a plurality of items from an item group in which winning probabilities are set according to various items;
A determination step of determining whether or not a pre-defined role is established by combining any of the plurality of lottery items with the selected item;
A resetting step for resetting the increased winning probability for a high-ranking item in the item group when it is determined that a winning combination is determined in the determining step;
A lottery method comprising: A computer that provides a predetermined lottery game,
A reception unit that receives a selection item including a combination of a predetermined number of items selected by the user from items already owned by the user before the start of the lottery game,
When the lottery game is started, a lottery unit for drawing a plurality of items from an item group in which winning probabilities are set according to various items;
A determination unit that determines whether or not a predetermined combination is established by combining any of the plurality of lottery items with the selected item,
A resetting unit that resets the increased winning probability for a high-ranking item in the item group when the determination unit determines the formation of a combination;
A program characterized by functioning as

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