JP2022168150A - Game program and game system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a game which is well-balanced between advantage and disadvantage a user receives by selecting non-obtaining a game element won by a lottery.

SOLUTION: A storage part stores a plurality of probability tables associated with winning probability for each value of a value point. A game program causes a computer to perform as: probability table selection means which selects a probability table to use for a lottery from the plurality of probability tables; lottery means which performs a lottery of one or more game elements from a plurality of game elements by using the selected probability table; and presentation means presenting one or more game elements won by a lottery to the user as an available game element. The probability table selection means selects a probability table to use for the next lottery and thereafter so that winning probability of the game elements of higher value rises in comparison with the probability table used in the previous lottery in the case that it is selected by the user not to obtain any of one or more presented game elements.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2023,JPO&INPIT

Description

There is an application for application of Article 30, Paragraph 2 of the Patent Law 1-1. Release by software distribution (1) Distribution of updated version ・Distribution date: December 5, 2019 ・Distribution location: Online stores “PlayStation Store” and “Microsoft Store” (2) Event quest distribution ・Distribution date: Reiwa 1 December 13, 2020 ・Distribution place Online store “PlayStation Store” and “Microsoft Store” (3) Distribution of update version ・Distribution date March 12, 2020 ・Distribution place Online store “Steam Store” (4) Event Quest distribution ・Distribution date March 20, 2020 ・Distribution location Online store “Steam store” 1-2. Publishing on the website (5) Posting information on the web video ・Date of publication: December 5, 2019 ・URL https://www. youtube. com/watch? v=D2kwEMoxmsQ&feature=emb_title (6) Posting information on the official website ・Posting date December 6, 2019 ・URL http://www. capcom. co. jp/monsterhunter/world-iceborne/topics/mf-xeno/http://game. capcom. com/manual/MHW/ja/ps4/page/4/9

The present invention relates to game programs and game systems.

2. Description of the Related Art Conventionally, for example, in online games, there have been known games in which game elements such as in-game items are selected by lottery to be given to users. In this type of lottery, whether or not a game element with a high scarcity value such as a so-called rare item can be obtained has a great influence on the user's satisfaction with the game. Therefore, various lottery methods for in-game lottery events have been devised in order to increase user satisfaction.

For example, Patent Literature 1 discloses a game in which, if a user does not like a card selected by lottery, the user does not receive the card and performs a new lottery again. Specifically, in the special lottery in this game, cards are drawn by paying a consideration (for example, 500 points). Allows for selection. Also, the rarity and attack power of the cards presented to the user in the re-lottery are determined so as to guarantee the rarity and attack power of the cards already drawn by the user.

Patent No. 5981372

However, with the lottery method described above, there is almost no disadvantage for the user to select the re-lottery. For this reason, most users are likely to select a re-lottery, and presenting the user with the option not to re-lottery may be less effective. In addition, since the re-lottery guarantees the acquisition of a card with a higher value than the cards that have already been presented, it may be difficult in the game to maintain the rarity of cards with high rarity and high attack power. In this way, by guaranteeing that the player will obtain a higher-value game element in the next lottery, there is a risk that the user's satisfaction with the game may rather be reduced.

Therefore, the present invention provides a game in which the user can choose not to acquire the game element won in the lottery event in the game, and the benefits and disadvantages that the user receives by choosing not to acquire the game element won in the game. To provide a game program and a game system that realize a game well-balanced between

In order to solve the above-described problems, a first invention provides a game system comprising an operation unit for receiving operations by a user, a storage unit, and a computer. A game program for realizing a game in which value points indicating height are set, wherein the storage unit stores a plurality of probability tables in which winning probabilities are associated with each value of the value points, and the computer a probability table selection means for selecting a probability table to be used for a lottery from among the plurality of probability tables; using the selected probability table, one or more game elements are selected from the plurality of game elements; Obtaining at least one of lottery means for drawing lots, presenting means for presenting said one or more game elements won by lottery to said user as available game elements, and said one or more presented game elements. is selected by the user, the game element selected to be obtained is provided to the user ID, and none of the presented one or more game elements is obtained. is selected by the user, the probability table selection means is used in subsequent lotteries so as to increase the winning probability of higher-value game elements compared to the probability table used in the previous lottery. A game program for selecting a probability table.

According to the game program, when the user selects not to obtain any of the game elements drawn and presented, the probability table selection means selects a value higher than the probability table used in the previous drawing. To select a probability table to be used for subsequent lotteries so as to increase the winning probability of high game elements.

As a result, the user's postponement of acquiring the winning game element has the advantage of increasing the probability that a game element with a higher value will be drawn in subsequent lotteries. On the other hand, the value of the game element presented in the previous lottery is not reflected in subsequent lotteries. There is also the disadvantage that game elements of lesser value may be drawn. Therefore, it is possible to realize a game in which the benefits and disadvantages that the user receives by choosing not to acquire the winning game element are well balanced.

The lottery means draws lots for the value points based on the winning probability in the selected probability table, and presents the game elements by the presentation means from among the plurality of game elements corresponding to the value points won by lottery. One or more game elements to be won may also be randomly drawn. As a result, after determining the value points, the game element to be presented to the user is determined at random from among the plurality of game elements corresponding to the value points. The calculation of means is easy.

According to the game program, each of the plurality of probability tables is associated with a different lottery parameter, and the larger the corresponding lottery parameter of the plurality of probability tables, the higher the value of the game element. is defined to increase the probability of winning, the computer further functions as parameter setting means for setting the lottery parameter for the user ID, and the probability table selection means selects one of the plurality of probability tables The user selects from among the probability tables corresponding to the lottery parameters set by the parameter setting means and obtains none of the one or more game elements presented by the presentation means. In this case, the parameter setting means may set the lottery parameter to be set for the user ID from the next time onward to be larger than the lottery parameter set from the previous time onwards. As a result, each time the winning game element is not obtained, the value in the game increases as the number of times the winning game element is not obtained is increased by a simple calculation of increasing the lottery parameter to be set from the next time onwards compared to the previous time. It is possible to realize a game in which the probability that a game element with a high value is drawn is increased.

The parameter setting means calculates the lottery parameter to be set for the user ID by adding a variation value to a reference value, and the variation value is the one or more game elements presented by the presentation means. is a value that increases when the user selects not to obtain any of the above, and the reference value is a value associated with the user ID and linked to a predetermined progress of the game, good too. A user with a high degree of game progress is likely to be more involved in the game than a user with a low degree of game progress, and is highly likely to be unsatisfied unless the value of the game element presented in the lottery is high. By linking the reference value of the lottery parameter to the degree of progress of the game, it is possible to reflect the user's degree of involvement in the game in the lottery of game elements.

The computer is further functioned as virtual space generation means for generating a virtual space, and character control means for controlling actions of the character in the virtual space according to the user's operation on the operation unit, and the game element may be attachable to the character or an object owned by the character.

A second invention is a game system comprising a program storage unit storing any one of the above game programs, and a computer executing the program stored in the program storage unit.

The program storage unit storing the game program is a readable/writable or readable storage device or storage medium built-in or external to the device included in the game system. be able to. The program stored in the program storage unit may be executed in a device directly connected to the program storage unit, or may be downloaded in a device connected to the program storage unit via a network (e.g., Internet). may be executed

According to the present invention, there is provided a game in which a user can select not to obtain a game element that has been won in a lottery event in the game, and benefits and disadvantages that the user receives by choosing not to obtain the game element that has been won. It is possible to provide a game program and a game system that realize a game that is well-balanced with profit.

It is a block diagram showing the hardware constitutions of the game system in one embodiment. It is a figure which shows an example of a weapon strengthening screen. It is a figure which shows an example of a lottery result screen. 3 is a block diagram showing a functional configuration of a control section of the game device; FIG. 10 is a flowchart showing the flow of weapon enhancement processing; It is a correspondence table showing a correspondence relationship between skills and value points. It is a flowchart which shows the flow of a 1st lottery process. It is the figure which put together several 1st probability tables used by a 1st lottery process. It is a flowchart which shows the flow of a 2nd lottery process. It is the figure which put together the some 2nd probability table used by a 2nd lottery process.

<Embodiment>
A game system and a game program according to an embodiment of the present invention will be described below with reference to the drawings.

[Hardware configuration]
First, the configuration of a game system 1 according to one embodiment of the present invention will be described. FIG. 1 is a block diagram showing the hardware configuration of a game device 2 forming a game system 1. As shown in FIG. As shown in FIG. 1, a game system 1 includes a game device 2 and a server device 4. The game device 2 includes one or more controllers (operation units) 31, monitors (display units) 32, and speakers 33. there is

The game device 2 includes a control section 21, which is a computer that controls its operation. The control unit 21 includes, for example, a CPU. A media I/F unit 22, a storage unit 23, a network I/F unit 24, a wireless communication control unit 25, a graphics processing unit 26, and an audio processing unit 27 are connected to the control unit 21 via a bus 21a. there is

The media I/F unit 22 is an interface into which game media 34 for executing the game can be loaded. The game media 34 is, for example, a disk-type recording medium such as a DVD-ROM, in which a game program 34a and game data 34b necessary for executing the game are recorded. This game data 34b includes various data necessary for executing the game.

The storage unit 23 is composed of, for example, an HDD as a large-capacity recording medium, a ROM as a semiconductor memory such as mask ROM or PROM, and a RAM such as DRAM or SRAM. The storage unit 23 stores a game program 34a and game data 34b read from the game media 34, save data, and the like. In this embodiment, not all the game data 34b in the game media 34 are read when the game is started, but the game data that is necessary according to the progress of the game (for example, when the game scene changes) is read.

The network I/F unit 24 is an interface for connecting to a communication network NW such as the Internet or LAN. Game device 2 can communicate with another game device 2 and server device 4 via communication network NW. For example, when progressing a game while communicating with the outside, the game device 2 transmits/receives data to/from another game device 2 and/or to/from the server device 4 via the communication network NW.

The wireless communication control unit 25 is wirelessly connected to the controller 31 attached to the game device 2, and can transmit and receive data to and from the controller 31. FIG. The controller 31 is an operation unit that receives user operations, and includes, for example, a plurality of keys (buttons, etc.). When the controller 31 is operated by the user, operation information corresponding to the operation is sent from the controller 31 to the controller 21 of the game device 2 via the wireless communication controller 25 . The control unit 21 advances the game based on operation information from the controller 31 .

The graphics processing unit 26 draws game images in a moving image format according to instructions from the control unit 21 . A game image drawn by the graphics processing unit 26 is displayed on the monitor 32 as a game screen. The monitor 32 is a display device (display unit) that displays game images. Monitor 32 is, for example, a liquid crystal display.

The audio processing unit 27 reproduces and synthesizes digital game sounds according to instructions from the control unit 21 . Also, an external speaker 33 is connected to the audio processing unit 27 . The game sound reproduced and synthesized by the audio processing unit 27 is output to the outside from the speaker 33 as a sound output device. In addition to or instead of the speaker 33, the audio processing unit 27 may be connected to an external headphone or the like.

The server device 4 includes a server control section 41, which is a computer that controls its operation. The server control unit 41 includes, for example, a CPU. A storage unit 42 and a network I/F unit 43 are connected to the server control unit 41 via a bus 41a. Note that the server device 4 may include an input device such as a keyboard and an output device such as a liquid crystal display as necessary.

The storage unit 42 is composed of, for example, an HDD as a large-capacity recording medium, a ROM as a semiconductor memory such as mask ROM or PROM, and a RAM such as DRAM or SRAM. The network I/F unit 43 is an interface that connects the server device 4 to a communication network NW such as the Internet or LAN. Server device 4 can communicate with multiple game devices 2 via communication network NW.

[Overview of the game]
An overview of the game in this embodiment will be described. The game according to the present embodiment is an action game in which the user operates the controller 31 to cause the player character to act in a three-dimensional virtual space representing villages, forests, plains, and the like to progress the game. Also, this game is a game in which a plurality of users can participate, a so-called online multiplayer compatible game, and a plurality of player characters corresponding to a plurality of users can act in the same virtual space.

Various items appear in the virtual space of this game. There are various ways in which users obtain items. For example, the user can purchase a specified item by spending in-game currency, or obtain an item as a reward by operating a player character and clearing a predetermined mission in the game. It should be noted that the fact that a user obtains or owns game elements such as items and skills described later means that the game elements are associated (linked) to the user ID and stored in a predetermined storage unit (for example, the storage unit 23). means.

The items available to the user include various types of weapon items (hereinafter simply referred to as "weapons") that can be equipped by the player character. Among these types of weapons, there are those to which game elements called "skills" can be added. Weapons can be strengthened by adding skills to them. For example, by adding a skill to a weapon, it is possible to increase the preset ability value (for example, attack power) of the weapon or add a new ability to the weapon. Note that strengthening a weapon leads to strengthening the player character equipped with that weapon.

There are various types of skills, for example, "strengthen attack power" to increase attack power, "strengthen defense power" to increase defense power, "strengthen affinity rate" to increase affinity rate, etc. There is an upper limit to the number of skills that can be added to one weapon. In this game, up to three skills can be added to weapons. In addition, in this game, the user can decide what kind of skill to add to the weapon, so that the weapon can be customized to enhance the user's favorite weapon. Weapon enhancement by adding skills is performed through the weapon enhancement screen.

FIG. 2 shows an example of the weapon strengthening screen 60. As shown in FIG. The weapon enhancement screen 60 is displayed on the monitor 32 when a weapon that the user desires to enhance (hereinafter also referred to as "enhanced weapon") is selected from among the weapons owned by the user by the user's operation on the controller 31. to be displayed. In this example, the weapon enhancement screen 60 includes a weapon display area 61 , an enhancement material list 64 , a total enhancement point display area 65 and a refusal count display area 66 . The number of rejections display area 66 will be described together with the number of rejections display area 74 in FIG.

In the weapon display area 61, information about the weapon selected by the user as the weapon to be strengthened is displayed. Weapon display area 61 includes weapon image display area 62 and additional skill display area 63 . The weapon image display area 62 displays an image of a weapon selected by the user as a weapon to be strengthened. The additional skill display area 63 displays the skill currently attached to the weapon to be strengthened (hereinafter also referred to as "additional skill").

Some types of skills have a level (Lv) of 1, 2, 3, 4, or 5. When comparing skills of the same type, high-level skills raise the stats of weapons to be enhanced more than low-level skills. In other words, higher-level skills are more valuable than lower-level skills. For this reason, a weapon with a level 1 to 4 level skill (for example, defense enhancement level 4) will be replaced with a higher level skill of the same type ( For example, by adding defense enhancement level 5, etc.), it is possible to further enhance the target weapon.

The reinforcement material list 64 displays a list of reinforcement material items (hereinafter also simply referred to as "reinforcement materials"). Reinforcement materials are items used to reinforce weapons. Reinforcement materials owned by the user can be selected and used by the user's operation on the controller 31 .

Reinforcement points are set for each reinforcement material. By using the reinforcement material, the user acquires reinforcement points corresponding to the reinforcement material. Specifically, when the reinforcement material is used, the reinforcement points corresponding to the reinforcement material are added to the total reinforcement points shown in the total reinforcement point display area 65 .

A total enhancement point display area 65 displays a total enhancement point, which is the total enhancement points owned by the user. When the total enhancement points reach the set value, skills that can be added to the weapon to be enhanced will be drawn. When the skill lottery is performed, the monitor 32 displays a lottery result screen.

An example of the lottery result screen 70 is shown in FIG. In this example, the lottery result screen 70 includes a winning skill display area 71 , an additional skill display area 72 , an acquisition refusal button 73 , and a refusal count display area 74 .

A winning skill display area 71 displays a plurality of skills (two in this example) that have been won by lottery. In this game, the user can operate the controller 31 to select one of a plurality of winning skills and add it to the weapon to be enhanced.

An additional skill display area 72 displays an additional skill that is currently added to the weapon to be strengthened. When the number of additional skills of the weapon to be strengthened is the upper limit of 3, the user selects one skill from the additional skills displayed in the additional skill display area 72 in order to obtain the winning skill. and must be abandoned.

There may be a case where the skill desired by the user has not been won, or the currently added skill may be preferred by the user rather than the skill that has been won. In such a case, the user can refuse to add the winning skill to the enhancement target weapon by operating the controller 31 to select and execute the acquisition refusal button 73 .

The number of times of refusal is counted for each weapon and displayed as the number of acquisition refusals in the refusal number display area 74 and the refusal number display area 66 shown in FIG. In this game, as will be described later, the higher the number of acquisition refusals, the higher the possibility of winning a high-value skill in the game.

[Functional configuration]
FIG. 4 is a block diagram showing the functional configuration of the control section 21 of the game device 2. As shown in FIG. By executing the game program 34a, the control unit 21 of the game device 2 controls the virtual space generation means 51, the character control means 52, the parameter setting means 53, the probability table selection means 54, the first lottery means 55, and the second lottery means. 56 , presentation means 57 and provision means 58 .

The virtual space generation means 51 generates a virtual space in which the player character acts. A virtual space may be three-dimensional or two-dimensional.

The character control means 52 controls actions of the player character placed in the virtual space within the game based on the user's operation on the controller 31 . For example, by operating the controller 31, the user can move the player character in the virtual space, or cause the player character to attack the enemy character.

The parameter setting means 53 sets lottery parameters for users (that is, user IDs). The lottery parameters are used to select a probability table by probability table selection means 54, which will be described later. The details of how to set the lottery parameters will be described later.

A probability table selection means 54 selects a probability table to be used for lottery from among a plurality of probability tables. A plurality of probability tables are stored in the storage unit 23. FIG. The multiple probability tables include multiple first probability tables and multiple second probability tables. The probability table selection means 54 selects one first probability table to be used for a lottery by the first lottery means 55 to be described later from among a plurality of first probability tables. Also, the probability table selection means 54 selects one second probability table to be used for a lottery by the second lottery means 56 to be described later from among the plurality of second probability tables.

A first lottery means 55 uses the first probability table selected by the probability table selection means 54 to lottery one skill from among a plurality of skills.

A second lottery means 56 uses the second probability table selected by the probability table selection means 54 to lottery one or more skills from a plurality of skills.

The presenting means 57 presents to the user one or more skills won by at least one of the lottery by the first lottery means 55 and the lottery by the second lottery means 56 as available skills. Specifically, the presentation means 57 displays on the monitor 32 a lottery result screen 70 including a winning skill display area 71 showing one or more winning skills (hereinafter also referred to as "winning skills").

When the user selects to acquire at least one of the presented one or more skills, the granting means 58 grants the selected skill to the user (that is, the user ID). Specifically, the imparting means 58 stores the information on the skill selected to be acquired in the storage unit 23 in association with the information on the enhancement target weapon associated with the user ID.

[Weapon strengthening process]
Next, the weapon strengthening process will be described with reference to FIG. Weapon enhancement processing is executed by parameter setting means 53 , probability table selection means 54 , first lottery means 55 , second lottery means 56 , presentation means 57 , and provision means 58 . Weapon enhancement processing is executed when the total enhancement points indicated in the total enhancement point display area 65 reaches the set value.

More specifically, in a game situation in which the weapon enhancement screen 60 is displayed on the monitor 32, the user operates the controller 31 to select and use enhancement materials owned by the user. As a result, the reinforcement points corresponding to the reinforcement materials used are added to the total reinforcement points stored in the storage unit 23 . When the total enhancement points reach the set value, the total enhancement points are consumed by the points corresponding to the set value, and weapon enhancement processing is started.

In the weapon strengthening process, first, the parameter setting means 53 sets a lottery parameter for the user ID (step S1). More specifically, the parameter setting means 53 sets a lottery parameter for the information on the weapon to be strengthened (weapon to be strengthened in the weapon strengthening process) associated with the user ID. The lottery parameter is calculated by the parameter setting means 53 by adding the variation value to the reference value.

The reference value is a value linked to a predetermined degree of progress of the game associated with the user ID. As the progress of the game increases, the reference value increases. In this game, the reference value is a value according to the skill added to the weapon to be enhanced. Specifically, each skill in the game has a value point that indicates its high value in the game. It is the total value.

Value points are described with reference to FIG. FIG. 6 is a correspondence table showing the correspondence between skills and value points. The correspondence table is stored in the storage unit 23. FIG. That is, the storage unit 23 stores value point information associated with information indicating each skill.

In this example, the value points are 1, 2, 3, 4, or 5. A skill with a large value point value represents a high value in the game. In this game, for each skill with a level of 1 to 5, value points 1 to 5, which are the same as the level, are set. In order to simplify the drawing, FIG. 6 shows only some types of skills (especially level-set types of skills) among the plurality of types of skills in the game. Every skill in the game has a value point, regardless of whether the skill has a level or not.

The reference value is a total value point, which is the total value of the value points of each skill added to the weapon to be enhanced. For example, for Weapon X shown in FIG. , 11 (=5+3+3).

The variable value is a value linked to the number of acquisition refusals. Information on the number of acquisition refusals is stored in the storage unit 23 in association with information on the weapon to be strengthened. The acquisition refusal count increases when the user selects not to acquire any of the one or more skills presented by the presentation means 57 . As an example, assume that two winning skills are presented at once (on one screen). In this state, if the user chooses not to acquire any skill, the number of acquisition denials being counted is incremented by one. As the number of acquisition refusals increases, the fluctuation value increases. In this example, the fluctuation value is obtained by multiplying the number of acquisition refusals by a predetermined positive number. The acquisition refusal count is incremented in step S7, which will be described later.

Therefore, the lottery parameter is calculated by the following formula (1).
(lottery parameter) = (reference value) + (fluctuation value)
= (total value points) + (number of rejections) x K (1)
However, K is a predetermined positive number.

Returning to FIG. 5, when the lottery parameters are set, the first lottery process is executed (step S2), and then the second lottery process is executed (step S3). In the first lottery process and the second lottery process, a predetermined number of skills (two in this example) are drawn by lottery from among skills that can be added to weapons to be strengthened in the game. Details of the first lottery process and the second lottery process will be described later.

Next, the presenting means 57 presents to the user, as available skills, the two skills won by the lottery of the first lottery process and the lottery of the second lottery process (step S4). Specifically, the presentation means 57 displays on the monitor 32 a lottery result screen 70 including a winning skill display area 71 showing two winning skills.

Next, the granting means 58 determines whether or not the user has selected to acquire one of the presented two winning skills by the user's operation on the controller 31 (step S5).

If it is determined that the user has selected to obtain the winning skill (step S5: Yes), the granting means 58 grants the winning skill selected to be acquired to the user ID (step S6). , the weapon strengthening process ends. That is, the imparting means 58 associates the information about the skill selected to be obtained with the user ID (more specifically, associates it with the information about the weapon to be strengthened associated with the user ID) and stores it in the storage unit 23. .

When it is determined that the user has selected not to acquire any of the two winning skills (step S5: No), that is, when the user selects and executes the acquisition refusal button 73 displayed on the lottery result screen 70 , the parameter setting means 53 increments the acquisition refusal count by 1 (step S7), and the weapon strengthening process ends.

Specifically, information indicating the number of acquisition refusals is stored in the storage unit 23 in association with information regarding the weapon for each weapon owned by the user. The default number of denials for each weapon is zero. Each time step S7 is executed, the acquisition refusal count increases.

Since the lottery parameter is calculated according to the above formula (1), when the number of acquisition refusals increases in step S7, in the next weapon strengthening process for the weapon to be strengthened, the parameter setting means 53 uses the user ID (more specifically, , the lottery parameter set for the weapon to be strengthened associated with the user ID) is made larger than the lottery parameter set in the previous weapon strengthening process for the weapon to be strengthened.

[First lottery process]
Next, the first lottery process in step S2 will be described with reference to FIGS.

In the first lottery process, if there is a skill with a level between 1 and 4 other than the highest level 5 among the additional skills currently attached to the weapon to be enhanced, that skill will be selected by lottery. It is determined whether or not a skill one level higher than the additional skill is to be the winning skill.

For example, if the additional skill of a weapon to be strengthened includes "defense enhancement level 3", it is highly likely that the user intends to strengthen the defense of the weapon to be enhanced. In other words, there is a high possibility that the user wishes to win the "defense enhancement level 4" which is one level higher than the "defense enhancement level 3". By executing the first lottery process in this manner, the probability that the skill desired by the user will be won increases.

In the following, a skill set at a level other than the highest level (in this example, a skill set at any of levels 1 to 4) will be referred to as an "enhanced skill".

As shown in FIG. 7, in the first lottery process, the first lottery means 55 first determines whether or not there is a skill that can be strengthened among the additional skills of the weapon to be strengthened (step S11).

When the first lottery means 55 determines that there is no enhanceable skill among the additional skills of the weapon to be enhanced (step S11: No), the first lottery process ends, and the process proceeds to the second lottery process of step S3.

When the first lottery means 55 determines that there is a skill that can be enhanced in the additional skills of the weapon to be enhanced (step S11: Yes), the probability table selection means 54 selects from among the plurality of first probability tables step S1 A first probability table corresponding to the lottery parameter set in step S12 is selected.

Next, the first lottery means 55 selects one skill of the highest rank (that is, the highest level) among the enhanceable skills included in the additional skills (step S13). For example, when a level 4 skill and a level 3 skill are included in the additional skills of the weapon to be strengthened, the first lottery means 55 selects the level 4 skill. If the additional skills of the weapon to be enhanced include a plurality of enhanceable skills of the same level, the first lottery means 55 randomly selects one skill from among the plurality of enhanceable skills.

Next, based on the first probability table selected by the probability table selection means 54, the first lottery means 55 determines by lottery whether or not to enhance the enhanceable skill selected in step S13 (step S14). That is, the first lottery means 55 determines by lottery whether or not the skill one level higher than the enhanceable skill selected in step S13 is to be the skill to be presented in step S4 (that is, the winning skill).

FIG. 8 collectively shows a plurality of first probability tables. Each first probability table associates a winning probability with each value point value of the skill selected in step S13. The winning probability is the probability that the skill selected in step S13 is strengthened, in other words, the probability that the skill one level higher than the skill selected in step S13 is selected as the winning skill.

Different lottery parameters are associated with the plurality of first probability tables, respectively. In FIG. 8, a plurality of first probability tables are arranged from left to right in ascending order of lottery parameters. In this example, the lottery parameter ranges from 0 to N, with a value of 0 being the lowest and a value of N being the highest.

In the following description, the winning probabilities corresponding to value points 1, 2, 3, 4, and 5 in the first probability table corresponding to an arbitrary lottery parameter k are respectively set to a, b, c, d, and e. It is represented by the attached a _k , b _k , c _k , d _k , and e _k . In step S14, the winning probability corresponding to the value point of one skill selected in step S13 is used among the plurality of winning probabilities included in the first probability table selected in step S12. Therefore, in each first probability table, the sum of the winning probabilities of value points 1-5 (a _k +b _k +c _k +d _k +e _k ) need not be 100%, but can be less than 100%. or may exceed 100%.

Since the lottery parameter is calculated according to the above equation (1), the lottery parameter increases as the number of acquisition refusals increases. FIG. 8 shows a first probability table corresponding to the lottery parameter t _n when the number of acquisition denials is n (n is an integer equal to or greater than 0), and the lottery parameter t _n when the number of acquisition denials is n+1. A first probability table corresponding to ₊₁ is enclosed in a thick frame. 8, the first probability table selected by the probability table selection means 54 in step S12 shifts from the left side to the right side in FIG. 8 as the number of acquisition refusals increases.

Also, in this example, the plurality of first probability tables are defined such that the winning probability corresponding to any value point increases as the corresponding lottery parameter increases. In a plurality of first probability tables, when the lottery parameter is the maximum value N, the winning probability of each value point is maximized. When the relationship between the multiple winning probabilities corresponding to each value point is represented by a formula, the following formulas (2) to (6) are obtained.
_a0≤a1≤ ... _{≤aN- 1≤aN (} 2)
_b0≤b1≤ ... _{≤bN- 1≤bN (} 3)
_c0≤c1≤ ... _{≤cN- 1≤cN (} 4)
_d0≤d1≤ ... _{≤dN- 1≤dN (} 5)
_e0≤e1≤ ... _{≤eN- 1≤eN (} 6)

Also, in this example, each first probability table is defined such that the greater the value point value, the lower the corresponding winning probability. The relationship between a plurality of winning probabilities in the first probability table corresponding to an arbitrary lottery parameter k is represented by the following equation (7).
a _k ≧b _k ≧c _k ≧d _k ≧e _k (7)

In step S14, the first lottery means 55 performs a lottery based on the winning probability corresponding to the value points of the enhanceable skill selected in step S13, among the winning probabilities included in the first probability table selected in step S12. . Then, the first lottery means 55 determines whether to strengthen the upgradeable skill selected in step S13 by lottery. The plurality of first probability tables are defined such that the greater the corresponding lottery parameter, the higher the winning probability corresponding to each value point. is more likely to be obtained.

Returning to FIG. 7, when the result of the lottery to enhance is obtained in step S14 (step S15: Yes), the first lottery means 55 selects the skill one level higher than the enhanceable skill selected in step S13. The skill presented in S4, ie, the winning skill is determined (step S16).

When one winning skill is determined in step S16, the first lottery process ends, and the process shifts to the second lottery process in step S3. That is, in this game, the winning skill determined in the first lottery process is one at most. Even if the additional skills of the weapon to be enhanced include multiple skills that can be enhanced, the first lottery process will be performed when one of the multiple skills that can be enhanced is selected with a higher level skill. ends.

If the result of the lottery to strengthen is not obtained in step S14 (step S15: No), the first lottery means 55 determines whether or not all the skills that can be strengthened included in the additional skills have been lottery (step S17). If it is determined that the lottery has been drawn for all the skills that can be enhanced (step S17: Yes), the first lottery process ends, and the process proceeds to the second lottery process of step S3. If it is determined that there is a skill that has not been selected by lot among the enhanceable skills included in the additional skills (step S17: No), the process returns to step S13, and the first lottery means 55 selects the enhanceable skill that has not been selected by lottery. Select the highest skill among

[Second lottery process]
Next, the second lottery process of step S3 will be described with reference to FIGS.

One or two skills are won in the second lottery process. That is, if one skill is won in the first lottery process, one skill is won in the second lottery process, and one skill is not won in the first lottery process, two skills are won in the second lottery process. is elected.

In the second lottery process, the probability table selection means 54 first selects the second probability table corresponding to the lottery parameter set in step S1 from among the plurality of second probability tables (step S21). Then, the second lottery means 56 draws one value point from a plurality of value points based on the winning probability in the second probability table selected by the probability table selection means 54 (step S22).

FIG. 10 collectively shows a plurality of second probability tables. Each second probability table associates the winning probability, which is the probability of being selected in step S22, for each value point value.

Different lottery parameters are associated with the plurality of second probability tables. In FIG. 10, a plurality of second probability tables are arranged from left to right in descending order of the lottery parameter values. The lottery parameter ranges from 0 to N, with a value of 0 being the lowest and a value of N being the highest.

In the following description, the winning probabilities corresponding to the value points 1, 2, 3, 4, and 5 in the second probability table corresponding to an arbitrary lottery parameter k are assigned to A, B, C, D, and E, respectively. A _k , B _k , C _k , D _k , and E _k attached. In step S22, since one of the value points 1 to 5 is always won by the lottery by the second lottery means 56, the sum of the winning probabilities of the value points 1 to 5 (A _k + B _k +C _k +D _k +E _k ) becomes 100%.

Since the lottery parameter is calculated according to the above equation (1), the lottery parameter increases as the number of acquisition refusals increases. FIG. 10 shows a second probability table corresponding to the lottery parameter t _n when the acquisition refusal count is n times (n is an integer equal to or greater than 0), and the lottery parameter t _n when the acquisition denial count is n+1 times. A second probability table corresponding to ₊₁ is enclosed in a thick frame. 10, the second probability table selected by the probability table selection means 54 in step S21 shifts from left to right in FIG. 10 as the number of acquisition refusals increases.

Also, in this example, the plurality of second probability tables are defined such that the greater the corresponding lottery parameter, the higher the winning probability of a skill of higher value. In other words, the plurality of second probability tables show that the greater the corresponding lottery parameter, the lower the probability of winning a relatively low value point such as value point 2, and the greater the probability of winning a relatively high value point such as value point 5. defined to be higher.

For example, in FIG. 10, the maximum values of winning probabilities for each value point in a plurality of second probability tables are shown surrounded by dashed lines.

The winning probability of value point 1 is the maximum value A ₀ when the value of the lottery parameter is the minimum value of 0. The winning probability of value point 1 decreases as the value of the lottery parameter increases. The relationship between winning probabilities of a plurality of value points 1 is represented by the following formula (8).
A0≧A1≧A2≧…≧ _Ak ≧ _{Ak+1 ≧ …} ≧ _{A N} (8)

The winning probability of value point 2 is the maximum value B _m1 when the value of the lottery parameter is m1. The probability of winning value point 2 decreases as the value of the lottery parameter moves away from m1. The relationship between the winning probabilities of a plurality of value points 2 is represented by the following formula (9).
_{B0≤B1≤B2≤} … _{≤Bm1-1≤Bm1 ≥Bm1 + 1} ≥… _{≥BN (} 9)

The winning probability of value point 3 is the maximum value C _m2 when the value of the lottery parameter is m2. The lottery parameter m2 is greater than the lottery parameter m1 that maximizes the probability of winning 2 value points. The probability of winning value point 3 decreases as the value of the lottery parameter moves away from m2. The relationship between winning probabilities of a plurality of value points 3 is represented by the following formula (10).
_C0≤C1≤ … _≤Cm1≤ … _{≤Cm2-1≤Cm2 ≥Cm2 + 1 ≥} …≥C _N (10)

The winning probabilities of value points 4 and 5 are the maximum values D _N and E _N , respectively, when the lottery parameter value is N, which is the maximum value. The lottery parameter N is greater than the lottery parameters m1 and m2 that maximize the winning probability of value points 2 and 3. The winning probability of value points 4 and 5 increases as the value of the lottery parameter increases. Also, in the second probability table corresponding to an arbitrary lottery parameter k, the winning probability D _k of value points 4 is less than or equal to the winning probability E _k of value points 5. The relationship between the probability of winning a plurality of value points 4 and the relationship of the probability of winning a plurality of value points 5 can be represented by equations (11) and (12) below, respectively.
_D0≤D1≤ … _≤Dm1≤ … _≤Dm2≤ … _{≤DN- 1≤DN (} 11)
_E0≤E1≤ … _≤Em1≤ … _≤Em2≤ … _{≤EN- 1≤EN (} 12)

In this way, in the plurality of second probability tables, the lottery parameter when the winning probability of each value point is maximized increases as the value of the value point increases. Generalizing the relationship between the plurality of second probability tables shown above is as follows.

That is, each of the plurality of second probability tables sets the winning probability of the first value points and the winning probability of the second value points corresponding to the skill having a higher value in the game than the skill corresponding to the first value points. contains. Then, the second probability table selected when the number of acquisition denials is n (n is an integer equal to or greater than 0) is compared with the second probability table selected when the number of acquisition denials is n+1. , compared to the winning probability corresponding to the first value point in the second probability table corresponding to the number of refusal times of n, corresponds to the first value point in the second probability table corresponding to the number of refusal times of n+1 The probability of winning is low, and compared to the winning probability corresponding to the second value point in the second probability table corresponding to the number of times of refusal to obtain n times, in the second probability table corresponding to the number of times of refusal to obtain n+1 times The odds of winning corresponding to the second value points are high.

In FIG. 10, the lottery parameters t _n and t _n+1 when the number of acquisition rejections is n times and n+1 times are both values smaller than the lottery parameter m1 that maximizes the winning probability of value point 2. is shown as In this case, value point 1 would correspond to the first value point and at least one of value points 2-5 would correspond to the second value point.

Thus, the plurality of second probability tables are defined such that the greater the corresponding lottery parameter, the higher the winning probability corresponding to relatively high value points. Therefore, the higher the number of acquisition refusals, the higher the probability that a relatively high value point such as value point 5 will be won in step S22.

Returning to FIG. 9, the second lottery means 56 randomly further draws one skill presented by the presentation means 57 from one or more skills corresponding to (for example, matching) the value points won ( step S23). For example, when the value point won in step S22 is 1, the second lottery means 56 presents the skills with the value point of 1, such as attack power enhancement level 1 and defense power enhancement level 1, by the presentation means 57. Randomly draw 1 skill to be given.

The second lottery means 56 determines the skill won in step S23 as the skill to be presented in step S4 (step S24).

Next, the second lottery means 56 determines whether or not all the skills presented in step S4 (that is, winning skills) have been finalized (step S25). If it is determined that all the skills to be presented have been confirmed (step S25: Yes), the second lottery process ends. If it is determined that all the skills to be presented are not finalized (step S25: No), the second lottery means 56 returns to step S22. Then, steps S22 to S25 are repeated until all winning skills are confirmed.

In summary, the game program 34a according to the present embodiment is executed by the control unit 21 in the game system 1 including the controller 31 (operation unit) that receives the operation by the user, the storage unit 23, and the control unit 21. , a game program 34a for realizing a game in which a value point indicating a high value is set for each of a plurality of game elements, wherein the storage unit 23 associates a winning probability with each value of the value point. A probability table selection means 54 selects a first probability table and a second probability table to be used for lottery from among the plurality of probability tables, and the probability table selection means 54 selects the selected probability table. A first lottery means 55 and a second lottery means 56 (lottery means) for drawing one or more skills from among the plurality of skills (game elements) using a first probability table and a second probability table. presenting means 57 for presenting the selected one or more skills to the user as available skills; and when the user selects to acquire at least one of the presented one or more skills. , granting means 58 for granting the selected skill to a user ID, and when the user selects not to obtain any of the one or more skills presented, the probability table selection Means 54 selects a first probability table and a second probability table to be used in subsequent lotteries so as to increase the probability of winning a skill with a higher value than the first probability table and second probability table used in the previous lottery. Select a probability table.

According to this game program 34a, when the user selects not to obtain any of the skills drawn and presented, the acquisition refusal count increases. As the acquisition refusal frequency increases, the probability table selection means 54 compares the first probability table and the second probability table used in the previous lottery so that the probability of winning a skill with a higher value increases in the next and subsequent lotteries. A first probability table and a second probability table to be used for lottery are selected.

As a result, the user's postponement of obtaining the winning skill has the advantage of increasing the probability that a skill with a higher value will be drawn in the next and subsequent lotteries. On the other hand, the value of the skill presented in the previous lottery is not reflected in subsequent lotteries. There is also the disadvantage that less valuable skills may be drawn. Therefore, it is possible to realize a game in which the benefits and disadvantages that the user receives by choosing not to acquire the winning skill are well balanced.

Further, in this embodiment, the second lottery means 56 draws value points based on the winning probability in the second probability table selected by the probability table selection means 54, and one or more skills corresponding to the winning value points are selected. A skill presented by the presentation means 57 is randomly selected from among them. As a result, the calculation of the lottery means is easier than when the winning probability is set for each skill.

In addition, in the present embodiment, a plurality of probability tables including a plurality of first probability tables and a plurality of second probability tables are such that the larger the corresponding lottery parameter, the higher the value of the skill, such as the highest value point 5. It is designed to increase the odds of winning. Then, the probability table selection means 54 selects a probability table corresponding to a lottery parameter that increases as the number of acquisition refusals increases, from among the plurality of probability tables. With this, each time you forfeit the winning skill, the lottery parameters to be set from the next time onwards will be increased compared to the previous time. It is possible to realize a game in which the probability of skills being drawn is high.

By the way, a user who has progressed in the game at a high degree may have played the game more deeply than a user who has progressed in the game at a low degree. high. In the present embodiment, since the reference value of the lottery parameter is a value linked to the degree of progress of the game, it is possible to reflect the degree to which the user has played the game in skill lottery.

<Other embodiments>
The present invention is not limited to the embodiments described above, and various modifications are possible without departing from the gist of the present invention.

For example, the game program 34a may not be recorded on the game media 34, and may be downloaded to the game device 2 from the outside via the communication network NW, for example. For example, the game device 2 included in the game system of the present invention may be a mobile information terminal such as a smart phone, and the operation unit and display unit may be touch screens. Also, the display device that displays the game screen may be a head-mounted display or the like.

Further, in the above embodiment, the game system 1 includes the game device 2 and the server device 4, but the game system of the present invention may be configured without the server device 4. FIG. The present invention is applicable not only to online games but also to offline games.

For example, in the above embodiment, the control unit 21 of the game device 2 executes the game program 34a to control the virtual space generation means 51, the character control means 52, the parameter setting means 53, the probability table selection means 54, the first lottery It functions as the means 55, the second lottery means 56, the presentation means 57, and the provision means 58, but some of these function parts 51 to 58 do not have to function. For example, the present invention is applicable to games that do not generate virtual space and games that do not control characters.

Further, the server control unit 41 of the server device 4 may function as part or all of the functional units 51 to 58 by executing the game program stored in the storage unit 42. FIG. In this case, the game program of the present invention is stored in the server device 4, or distributed and stored in the game device 2 and the server device 4, and the control unit 21 and the server control unit 41 that execute such a game program. corresponds to the "computer" that executes the game program of the present invention.

Also, the first probability table and the second probability table may not be stored in the storage unit 23 of the game device 2, and may be stored in another storage device such as the storage unit 42 of the server device 4. .

In the above embodiment, a skill that can be added to a weapon item owned by the user was exemplified as a game element available to the user, but the game element is not limited to this. For example, a game element may be a skill or ability that can be added to a player character. Also, for example, the game element may be one that can be attached to an object such as an item other than a weapon item (armor item or accessory), or otherwise. For example, the game elements may be items or characters available to the user, or privileges in the game available to the user (that is, granted to the user).

Also, the numerical values and the like described in the above embodiment are merely examples. For example, the number of game elements to be won by lottery, the number of game elements that can be obtained from the winning game elements, the number of game elements that can be owned, etc. are not limited to those described in the above embodiments. In the above embodiment, the number of skills that can be won in the first lottery process is limited to one, but two or more skills may be won in the first lottery process. For example, value points were any integer value from 1 to 5, but are not so limited. For example, the value points need not be consecutive integer values. For example, a value point may be a negative value, etc., or may be a decimal value. Further, when the lottery parameter reaches a preset upper limit, even if the number of acquisition refusals increases, the probability table selected last time may be the same as the probability table selected after the next time.

In the above embodiment, both the first lottery means 55 and the second lottery means 56 draw lots, but the present invention is not limited to this, and only one of the first lottery means 55 and the second lottery means 56 may be selected by lottery.

Further, in the above embodiment, the value points of some skills are indirectly displayed on the monitor 32 in the form of the level set for the skill so that the user can recognize them. The value points may be displayed on the monitor 32 in another form that is perceptible to the user, such as rarity. Also, the value points set for the game element need not be displayed on the monitor 32 so as to be recognizable by the user.

In addition, the level of game elements that have a set level does not necessarily have to be expressed numerically. may be The present invention can also be applied to games that do not include leveled game elements.

The method of setting lottery parameters in the present invention is not limited to the one described in the above embodiment. For example, the reference value is the total value of value points corresponding to the skills added to the weapon to be enhanced, but the reference value is not limited to this. The reference value may be a level set for the player character or the like, which is different from the value points. The reference value does not have to be linked to the degree of progress of another game, and may be linked to, for example, the total playing time spent by the user on the game. The reference value may be a fixed value. The lottery parameter does not have to be a reference value plus a variable value, and may simply be a variable value.

In the above embodiment, the acquisition refusal count is stored for each weapon, but one acquisition denial count may be stored for each user ID instead of for each weapon.

In the above embodiment, an example was described in which the two winning skills were presented at once (on one screen), but the present invention is not limited to this. Instead of presenting one or more winning skills at once, one or more winning skills may be continuously presented one by one. In this state, if the user selects not to obtain all the continuously presented skills, the acquisition refusal count may be incremented by one.

In addition, when the user selects not to acquire any of the presented one or more skills, the probability table that is always used for the next lottery is more valuable than the probability table used for the previous lottery. A game in which the probability table used for subsequent draws is of higher value than the probability table used for the previous draw, rather than having to be selected to increase the odds of winning a game element with a higher probability of winning. It is sufficient that the element is selected so that the winning probability of the element is increased. For example, selection of probability tables such as steps S12 and S21 may be skipped when a predetermined condition is satisfied, and in this case, the same probability table as the previous time may continue to be used in the next lottery. .

The user may be able to specify that the selection of the probability table should be skipped when the game element is drawn. For example, the user may be able to specify whether or not to select a probability table according to the number of acquisition refusals when a game element lottery is held. For example, before the lottery of game elements is performed, the user selects the item "Refuse to select the probability table this time" and the item "Select the probability table using the accumulated number of times of acquisition refusal". and may be executable and displayed on the game screen. For example, if the item "reject the selection of the probability table this time" is selected and executed, the lottery parameter may be set so that the number of acquisition refusals is not reflected. Also, for example, when the item "Use the accumulated number of acquisition refusals to select a probability table" is selected and executed, the lottery parameter is determined by using, for example, the above formula (1). It may be set as a value reflecting the number of times. That is, in the lottery after the next lottery after refusing to obtain the game element, when the item "select the probability table using the accumulated number of times of refusal to obtain" is selected and executed, the previous lottery A probability table may be selected so that the winning probability of a game element with a higher value increases compared to the probability table used for the lottery. The number of acquisition denials may be reset when the item "use the accumulated number of denials of acquisition to select a probability table" is selected and executed.

Also, the selection of the probability table itself may be performed by lottery. A game in which a probability table used for subsequent lotteries has a higher value than the probability table used for the previous lottery when the user selects not to obtain one or more of the presented skills. It may be selected by lottery from a plurality of probability tables in which the probability of winning an element is set high.

1: Game system
2: Game device
4: Server equipment
21: Control part
23: Memory
31: Controller
32 : monitor
41: Server control unit
42: Memory
51: Virtual space generation means
52: Character control means
53: Parameter setting means
53: Character control means
54: Probability table selection means
55: First Lottery Means
56: Second Lottery Means
57: Presentation means
58: Giving means

Claims (3)

A game that realizes a game in which value points indicating high value are set for each of a plurality of game elements by executing the computer in a game system comprising an operation unit that receives operations by a user, a storage unit, and a computer. a program,
The storage unit stores a plurality of probability tables in which winning probabilities are associated with values of the value points,
said computer,
lottery means for drawing one or more game elements from the plurality of game elements using the probability table;
presenting means for presenting the one or more game elements won by lottery to the user as available game elements;
granting means for, when the user selects to acquire at least one of the presented one or more game elements, to grant the game element selected to be obtained to a user ID; and
When selecting a probability table to be used for subsequent lotteries in a state that the user has selected not to acquire any of the presented one or more game elements, the probability table used in the previous lottery is selected. as probability table selection means for selecting the probability table based on the progress of the game when selecting the probability table so that the winning probability of a game element with a higher value increases compared to the probability table used; A game program that works. The probability table selection means selects the probability table based on the degree of progress of the game and the number of times the user has selected not to obtain any of the one or more game elements presented. , The game program according to claim 1. A program storage unit storing the game program according to claim 1 or 2;
and a computer that executes the program stored in the program storage unit.

Images