JP7317181B2 - Computer system, game system, program, and object lottery method - Google Patents

Description

The present invention relates to a computer system or the like that provides a user with an object that can be used in a game.

2. Description of the Related Art Conventionally, games employing a billing system called "item billing" have been known in which objects such as characters, weapons, and items that can be used in games are provided for a fee. For example, Patent Literature 1 discloses a game in which a predetermined currency can be consumed to purchase items. In addition, the mode of item charging is not limited to a sales mode in which a player (user) can individually specify and purchase an object such as an item desired by the player (user). ”).

JP 2015-008988 A

By the way, in the conventional gacha, even if this is repeated multiple times, the lottery processing is performed individually, so there is no relationship between the lottery results. Therefore, the player (user) of the game simply repeats the gacha execution instruction operation for the purpose of winning the desired object, etc., and the process is monotonous, and there is a problem that the user's gambling spirit cannot be further enhanced. .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a technology capable of increasing the user's gambling spirit by making the lottery processes performed in succession related to each other.

A first invention for solving the above problems is to select an object that can be used in a game from an object group based on a lottery execution instruction operation by a user who operates a user terminal (for example, the user terminal 1500 in FIG. 1). A computer system (e.g., server system 1100 in FIG. 1, user terminal 1500A in FIG. 10) that draws a lottery and provides the user with an object selected by the lottery, wherein the object includes a first type and a different role. A first lottery means (for example, a first lottery processing unit in FIGS. 5 and 10) that draws a lottery from among a group of objects of the second type and selects a first given object to be given to the user. 235) and probability setting means (for example, the a second lottery probability setting unit 240); , and the second lottery processing unit 257 of FIG. 10), wherein the first lottery means, the probability setting means, and the second lottery means function as a series of lottery processes.

The term "computer system" as used herein means a system consisting of a single computer or a system in which a plurality of computers are communicably linked. According to the first invention, the first lottery and the second lottery for drawing objects with different roles can be executed as a series of lottery processes. Then, the winning probability of the second type object group to be selected by lottery in the second lottery is variably set based on the parameter setting of the first grant object randomly selected from the first type object group in the first lottery. be able to. According to this, the lottery process performed continuously can be related, and a user's gambling spirit can be heightened.

In a second aspect of the invention, each of the second type objects is associated with one of a plurality of types of tables, and the probability setting means is based on parameter settings set for the first given object. selects a table from among the plurality of types of tables, and sets a winning probability such that only the second type object associated with the selected table wins the lottery of the second lottery means; A computer system of a first invention.

According to the second invention, each second type object is associated with one of a plurality of types of tables, and after the table is selected based on the parameter settings set in the first grant object , the winning probability is set so that a lottery is drawn from among the second type objects associated with the selected table.

In a third aspect of the invention, the probability setting means sets a parameter that satisfies a corresponding condition based on the parameter setting set for the first given object among the objects included in the second type object group. The computer system according to the first or second invention variably sets the winning probability of an object that is on the floor.

According to the third aspect, it is possible to variably set the winning probability of an object among the second type object group whose parameter setting satisfies a corresponding condition with the parameter setting of the first grant object.

A fourth aspect of the invention is the computer system according to the third aspect of the invention, wherein the probability setting means has means for increasing or decreasing the winning probability of an object whose parameters are set to satisfy the matching condition.

According to the fourth aspect, it is possible to increase or decrease the winning probability of an object that satisfies the corresponding condition among the second type object group.

A fifth invention is the computer system according to the third or fourth invention, wherein the parameter setting includes at least a setting indicating rarity.

According to the fifth aspect, it is possible to variably set the winning probability of an object among the second-type object group whose rarity satisfies a corresponding condition with the rarity of the first grant object.

A sixth aspect of the invention is the computer system according to any one of the third to fifth aspects of the invention, wherein the parameter settings include at least settings relating to compatibility between the first type and the second type objects. be.

According to the sixth aspect, it is possible to variably set the winning probability of an object among the group of type 2 objects that satisfies a matching condition between the setting related to the combination affinity and the setting related to the first grant object. can.

In a seventh aspect, the parameter setting includes at least a setting related to a combination compatibility between the first type and the second type objects, and the objects included in the second type object group are set according to the combination Grouping is performed based on affinity, and the probability setting means selects, from among the groupings, a group of the combination affinity that satisfies the matching condition, thereby: 1) objects belonging to a group other than the selected group; or 2) making the winning probability of an object belonging to a group other than the selected group lower than the winning probability of an object belonging to the selected group. .

According to the seventh invention, the winning probability is set so that only objects belonging to a group that satisfies a condition corresponding to the combination compatibility with the setting related to the first grant object among the second type object group will win. can be done. Alternatively, the winning probability can be set so that the object of the group is more likely to win.

In an eighth aspect, the parameter setting includes at least a setting related to a combination compatibility between the first type and the second type objects, and the objects included in the first type object group are set according to the combination A first grouping based on affinity is made, objects included in the second type object group are made a second grouping based on the combination affinity, and the first lottery means a first group lottery means for selecting a group from among the groups based on the grouping of; wherein the probability setting means selects the group of the combination compatibility that satisfies the corresponding condition from among the groups based on the second grouping, 1) the selection setting the winning probability of objects belonging to groups other than the selected group to zero, or 2) making the winning probability of objects belonging to groups other than the selected group lower than the winning probability of objects belonging to the selected group; 3 is a computer system of the invention.

According to the eighth invention, it is possible to select a group from among the groups of the first type object group grouped based on the combination compatibility, and perform the first lottery with the objects belonging to the selected group as the lottery targets. . Then, the probability of winning can be set so that only objects belonging to a group that satisfies a condition of matching compatibility with the setting related to the first grant object among the second type object group will win. Alternatively, the winning probability can be set so that the object of the group is more likely to win.

In the ninth invention, the object includes a plurality of types of objects having different roles, and the user selects a type to be the first type and a type to be the second type from among the plurality of types. The computer system according to any one of the first to eighth inventions, further comprising lottery type selection means for determining based on an operation.

According to the ninth invention, the user can select the type (role) of the object to be drawn first.

A tenth aspect of the present invention provides control for displaying information indicating the first given object or information indicating a hint of the first given object on the user terminal before executing the lottery by the second lottery means. The computer system according to any one of the first to ninth inventions, further comprising means for performing

According to the tenth aspect, it is possible to present the user with the first award object won in the first lottery before executing the second lottery, or present a hint of the first award object to the user.

The eleventh aspect of the invention further comprises means for performing control to display information indicating the setting of the winning probability by the probability setting means on the user terminal before executing the lottery by the second lottery means. A computer system according to any one of the first to tenth inventions.

According to the eleventh invention, the winning probability of the second type object group related to the second lottery set based on the parameter setting of the first grant object can be presented to the user before the second lottery is executed.

The twelfth invention sets the winning probability of each object included in the first type object group and/or the winning probability of each object included in the first type object group set by the probability setting means. , means for making changes in exchange for consumption of a given consideration based on the user's change instruction operation.

According to the twelfth invention, the winning probability of the first type object group related to the first lottery and the winning probability of the second type object group related to the second lottery set based on the parameter settings of the first grant object can be set by the user. You can change it by collecting consideration from.

In the thirteenth invention, after executing the lottery by the first lottery means and before executing the lottery by the second lottery means, a cancel instruction operation for canceling the execution of the second lottery process is performed. Cancellation acceptance means (for example, the cancellation processing unit 255 in FIGS. 5 and 10) to accept, and when the cancellation acceptance means accepts the cancellation, the execution of the lottery by the second lottery means is canceled, and the series of lottery processes The computer system according to any one of the first to twelfth inventions, further comprising canceling means (for example, the cancel processing unit 255 in FIGS. 5 and 10) for terminating the processing.

According to the thirteenth invention, after the first lottery, the execution of the second lottery can be canceled in response to the user's cancellation instruction operation, and the series of lottery processes can be terminated.

In the fourteenth invention, the consideration for the lottery by the first lottery means and the consideration for the lottery by the second lottery means are separate, and the second lottery means is based on the result of the lottery by the first lottery means. The computer system according to any one of the first to thirteenth inventions, further comprising second lottery price determination means for variably determining the price of the lottery.

According to the fourteenth invention, it is possible to set the price of the second lottery to be lower or, conversely, to be higher, depending on the lottery result of the first lottery.

A fifteenth invention is a game system (for example, the game system 1000 of FIG. 1) in which a user terminal and the computer system of any one of the first to fourteenth inventions are configured to be communicatively connectable.

According to the fifteenth invention, it is possible to realize a game system having the same effect as the first invention.

In a sixteenth aspect of the present invention, a user terminal executes a process of drawing an object that can be used in a game from among a group of objects based on a user's drawing execution instruction operation, and giving the object selected by the drawing to the user. A program (for example, game program 504 in FIG. 10) to be executed by (for example, user terminal 1500A in FIG. 10), wherein the objects include first type and second type objects having different roles, A first lottery means for drawing a lottery from among a group of first-type objects to select a first grant object to be given to the user; a probability setting means for variably setting the winning probability of each object included in the second type object group for selecting a second grant object to be granted to the user by drawing lots from the second type object group based on the winning probability; The program causes the user terminal to function as lottery means, and executes the first lottery means, the probability setting means, and the second lottery means as a series of lottery processes.

According to the sixteenth invention, it is possible to realize a program having the same effect as the first invention.

The figure which shows the whole structural example of a game system. The figure which shows the apparatus structural example of a user terminal. The figure which shows the rough execution procedure of repeated gacha. The figure explaining the principle of a 2nd lottery probability setting process. FIG. 2 is a block diagram showing a functional configuration example of a server system; FIG. 4 is a diagram showing a data configuration example of user management data; FIG. 4 is a diagram showing a data configuration example of game object data; FIG. 2 is a block diagram showing a functional configuration example of a user terminal; 4 is a flowchart for explaining the flow of processing in the server system; FIG. 10 is a diagram showing an example of the functional configuration of a user terminal in modification 1; The figure which shows the modification of game object data.

Preferred embodiments of the present invention will be described below with reference to the drawings. In addition, the present invention is not limited by the embodiments described below, and the forms to which the present invention can be applied are not limited to the following embodiments. Moreover, in the description of the drawings, the same reference numerals are given to the same parts.

FIG. 1 is a diagram showing an example of the overall configuration of a game system 1000 according to this embodiment. As shown in FIG. 1, the game system 1000 includes a server system 1100, which is a computer system, and a user terminal 1500 possessed by a user who is the player 2 of the game of this embodiment. They are configured to be mutually connected so as to be capable of data communication.

A communication line 9 means a communication path capable of data communication. That is, the communication line 9 includes a dedicated line (dedicated cable) for direct connection, a LAN (Local Area Network) such as Ethernet (registered trademark), a telephone communication network, a cable network, and a communication network such as the Internet. It does not matter whether the communication method is wired or wireless.

The server system 1100 includes a main unit 1101, a keyboard 1106, a touch panel 1108, and a storage 1140. The main unit 1101 includes a CPU (Central Processing Unit) 1151, a GPU (Graphics Processing Unit), and a DSP (Digital Signal Processor). A control board 1150 on which electronic parts such as various microprocessors, various IC memories 1152 such as VRAM, RAM, and ROM, and a communication device 1153 are mounted is incorporated. Part or all of the control board 1150 may be implemented by an ASIC (Application Specific Integrated Circuit), FPGA (field-programmable gate array), or SoC (System on a Chip).

This server system 1100 provides a user management function related to user registration and the like, and data necessary for playing a game on the user terminal 1500, through arithmetic processing by the CPU 1151 or the like based on predetermined programs and data. A game management function for managing game execution control on the user terminal 1500 is implemented. In other words, the game in this embodiment is implemented as a kind of client-server online game. The player 2 accesses the server system 1100 with his own user terminal 1500, logs in with the issued account, and enjoys the game of this embodiment.

In addition, the server system 1100 cooperates with an external electronic payment server operated by an electronic payment company or the like to perform purchase procedures (billing processing) for points equivalent to virtual currency (hereinafter simply referred to as “points”). In the billing process, the electronic payment server responds to an inquiry from the server system 1100 and performs a process of settling the purchase amount of the points with the player 2's credit card, prepaid card, or the like. Then, the server system 1100 gives the player 2 the equivalent of the purchase amount settled by the electronic payment server.

Note that the server system 1100 is not limited to the single configuration shown in FIG. 1, and may have a configuration in which a plurality of blade servers sharing each function are installed and connected to each other via an internal bus so as to enable data communication. . Alternatively, a configuration may be adopted in which a plurality of independent servers installed at remote locations are allowed to perform data communication via the communication line 9, thereby functioning as the server system 1100 as a whole.

The user terminal 1500 is a computer system that functions as a man-machine interface, and is capable of data communication with the server system 1100 by connecting to the communication line 9 via a mobile phone base station, wireless communication base station, or the like. The user terminal 1500 may be, for example, a smart phone, a mobile phone, a portable game device, a stationary home game device, a controller for a stationary home game device, an arcade game device, a personal computer, a tablet computer, a wearable computer, or the like. can take

FIG. 2 is a diagram showing a device configuration example of a smartphone, which is an example of the user terminal 1500. As shown in FIG. As shown in FIG. 2, the user terminal 1500 includes a direction input key 1502, a home key 1504, a touch panel 1506 functioning as an image display device and a contact position input device, a built-in battery 1509, a speaker 1510, and a microphone 1512. , a control board 1550, and a memory card reader 1542 capable of reading data from and writing data to a memory card 1540, which is a computer-readable storage medium. In addition, a power button, a volume control button, etc. (not shown) are provided.

The control board 1550 includes a CPU 1551, various microprocessors such as GPU and DSP, various IC memories 1552 such as VRAM, RAM, and ROM, and wireless communication with mobile phone base stations and wireless LAN base stations connected to the communication line 9. A wireless communication module 1553, an interface circuit 1557, and the like are mounted. The control board 1550 also includes a circuit for receiving signals from the direction input key 1502 and the home key 1504, a driver circuit for the touch panel 1506, an output amplifier circuit for outputting audio signals to the speaker 1510, and audio collected by the microphone 1512. A so-called I/F circuit (interface circuit) 1557 such as an audio signal generation circuit for generating a signal of , and a signal input/output circuit for a memory card reader 1542 are mounted. Each element mounted on the control board 1550 is electrically connected to each other via a bus circuit or the like, and is connected so as to be able to read/write data and transmit/receive signals. Part or all of the control board 1550 may be composed of ASIC, FPGA, or SoC.

In the control board 1550, an IC memory 1552 stores a game client program and various setting data necessary for executing the game client program. A game client program or the like is downloaded from the server system 1100 at an appropriate timing. Note that the data may be read from a storage medium such as the memory card 1540 that is separately obtained. Then, the CPU 1551 or the like executes the game client program to perform arithmetic processing, and controls each unit of the user terminal 1500 according to the operation input to the touch panel 1506, the direction input key 1502, and the home key 1504, so that the game of the player 2 is executed. enable play.

[overview]
In the game of this embodiment, the player 2 can perform a lottery (gacha) for objects that can be used in the game in exchange for consuming a predetermined amount of points. Objects that can be granted by gacha include, for example, characters that can be selected as a player character, various items such as weapons, armor, ammunition, and medicine that can be equipped or used by the player character, vehicles for the player character, and summoned beasts. , additional abilities that can be added to the player character such as magic and skills, the opening of new game stages and maps, and lottery rights. In this embodiment, a plurality of objects that can be classified into three categories of "character", "weapon", and "item" with different roles are prepared in advance as lottery targets. Note that the value consumed in gacha is not limited to points, and may be real-world currency (money).

More specifically, in this embodiment, two types of gacha menus, ie, "single-shot gacha" and "multi-shot gacha" are prepared. Then, in the single-shot gacha, for example, the category selection operation of the player 2 is accepted, one of the categories of characters, weapons, and items (types of objects with different roles) is selected, and one lottery is performed for the selected category. Processing is performed, and the winning object is given to the player 2. - 特許庁

On the other hand, when the repeated gacha is selected, lottery processing is performed a plurality of times, and the winning objects are given to the player 2 all at once. In this embodiment, a lottery is sequentially drawn from the object groups of each category for each category of characters, weapons, and items.

Here, a rarity is determined for each object prepared as a lottery target. The rarity is, for example, "super rare", "rare", and "common" in descending order. Of course, the number of stages of rarity may be four or more, or may be two. In addition, for each of the super rare and rare objects among them, a reference value of winning probability is predetermined according to its rarity. The higher the rarity, the lower the winning probability reference value is set, making it harder to win. For example, Super Rare is 0.1%, Rare is 0.7%, and so on.

In the case of a single-shot gacha, the lottery process is performed using the winning probability reference value of the rare object as it is as the winning probability. When the rare object is not won as a result of the lottery, one of the non-rare objects whose rarity is common among the objects to be lottery is selected and given. On the other hand, when executing the repeated gacha, the winning probability is variably set based on the winning probability reference value of the rare object, and used for the lottery process.

FIG. 3 is a diagram showing a rough execution procedure of a recurring gacha. As shown in FIG. 3, in the repeated gacha, a lottery execution instruction operation is accepted (S1). For example, the player 2 performs a lottery execution instruction operation by selecting a repeated gacha menu from the gacha menu.

Then, when the lottery execution instruction operation is received, first, a character to be given to the player 2 is drawn by lottery from among the object group of the character category (character group prepared as the lottery target) (S2; character lottery). Subsequently, a weapon to be given to the player 2 is drawn by lottery from among objects of the weapon category (weapon group prepared as a lottery target) (S3; weapon lottery). Then, an item to be given to the player 2 is drawn by lottery from among the object group of the item category (item group prepared as a lottery target) (S4; item lottery).

After that, three objects of a character O11 won in the character lottery, a weapon O13 won in the weapon lottery, and an item O15 won in the item lottery are given to the player 2 (S5), and execution of the repeated gacha is finished.

[principle]
In the continuous gacha, based on the parameter setting of the object (first grant object) won in the first lottery, which is executed first, the winning probability standard value of the object (rare object) targeted for the second lottery in the second lottery is adjusted. By doing so, processing for variably setting the winning probability related to the second lottery (second lottery probability setting processing) is performed. That is, in the present embodiment, the second lottery probability setting process is performed before executing the weapon lottery, the winning probability related to the weapon lottery is set variably, and the second lottery probability setting process is performed before executing the item lottery, To variably set the probability of winning an item lottery. In the character lottery executed first, lottery processing is performed using the winning probability reference value as it is as the winning probability, as in the one-shot gacha.

1. Combination Compatibility FIG. 4 is a diagram for explaining the principle of the second lottery probability setting process, focusing on the character lottery and the weapon lottery. In the character lottery, which is the first lottery in this case, a lottery is drawn from the character group, which is the first type object group. Character types such as "type A", "type B", and "type C" are set in advance for each character to be selected by lottery. Therefore, as shown in FIG. 4, each character can be grouped into groups G211, G213, G215, . . . for each character type. This group corresponds to the first grouping based on combinatorial compatibility.

Then, in the second lottery probability setting process after the character lottery, first, the combination compatibility is determined from the character type of the first grant object. For example, when the character O11 of type B wins the lottery, based on this type B, a weapon matching the combination compatibility with the character O11 is determined among the weapon group, which is the second type object group. In the present embodiment, a weapon whose parameters are set to satisfy a predetermined compatibility condition with type B is regarded as a weapon with matching compatibility.

Here, for each weapon, a character type of a character who can equip the weapon is preset as a parameter setting. Therefore, as shown in FIG. 4, each weapon can be grouped into groups G221, G223, G225, . . . for each character type. This group corresponds to the second grouping based on combinatorial compatibility. For example, weapons belonging to group G221 are weapons that type A and type B characters can equip. On the other hand, weapons belonging to group G225 are weapons that can only be equipped by type C characters. For the weapon, a weapon type is appropriately set as another parameter setting. For example, weapon types such as "for long-range attack", "for medium-range attack", and "for short-range attack" can be set.

The corresponding condition for the character is, for example, "the same character type as that of the first grant object is set as the parameter setting". Therefore, in the examples of FIGS. 3 and 4, the weapons belonging to the groups G221 and G223 are determined to be the weapons with matching compatibility with the character O11.

After that, reference value adjustment processing is performed with weapons of groups G221 and G223 that match in combination compatibility as target objects, and winning probabilities for each are primarily set. More specifically, among the objects belonging to the groups G221 and G223, the target objects are rare objects for which the winning probability reference value is determined. The reference value adjustment process is defined as, for example, a process of increasing the winning probability by adding a predetermined value (for example, +0.3) to the winning probability reference value of the target object. A process of multiplying the winning probability reference value of the target object by a predetermined value (for example, 1.2) may be performed. In the example of FIGS. 3 and 4, this process makes it easier for the character O11 to be equipped with a super-rare or rare weapon in the second lottery. When a rare object is not won, for example, an object to be given may be selected from among non-rare objects (common rarity weapons belonging to groups G221 and G223) with matching compatibility.

It should be noted that the weapon group may include not only weapons with limited character types that can be equipped as illustrated, but also "common" weapons without such restrictions. Then, the common weapon may be set as the winning probability setting target in the second lottery probability setting process.

Also, instead of increasing the winning probability of objects with matching combination compatibility, the winning probability of objects with unmatched combination compatibility (weapons belonging to group G225 in the example of FIGS. 3 and 4) may be reduced. In this case, the reference value adjustment process is performed with the rare object that does not match the combination compatibility as the target object. Then, the reference value adjustment process is defined as a process of reducing the winning probability of the target object by, for example, subtracting a predetermined value from the winning probability reference value.

Alternatively, the odds of winning the objects that do not match in combination may be set to zero. For example, this can be achieved by excluding objects that do not match each other in combination from the targets of the second lottery. In this case, if the character O11 wins the first lottery, the weapon that wins the second lottery is always a weapon that the character O11 can equip. That is, in the second lottery, a weapon that cannot be equipped by the character O11 who won the first lottery can be prevented from being won.

2. Rarity In the second lottery probability setting process of the present embodiment, after the winning probability is primarily set based on the combination compatibility as described above, if the first given object is a rare object, the rarity of the first given object is the rarity of the first given object. to select an object for the second lottery that satisfies a predetermined matching condition. Then, the winning probability is secondarily set for the selected object.

The corresponding condition regarding the rarity is, for example, "the same rarity as the first grant object is set as the parameter setting".

Specifically, in the examples of FIGS. 3 and 4, the rarity of the character O11 who won the first lottery is Super Rare. The probability of winning is secondarily set for the same super-rare weapons O13, O21, and the like. The secondary setting is performed by increasing the winning probability by, for example, adding a predetermined value (for example, +0.1) to the winning probability of the weapons O13, O21, etc. set in the primary setting. According to this, the object of the same rarity as the object won in the first lottery can be easily won in the second lottery.

The secondary setting may also be performed by lowering the winning probability of a rare object having a different rarity from the first grant object or setting the winning probability to zero in the same manner as the primary setting.

After the second lottery probability setting process for the weapon lottery has been performed as described above, a lottery is performed from the weapon group, which is the second type object group, based on the set winning probability, and the weapon to be given to the user is determined. do. After that, prior to the next item lottery, the second lottery probability setting process is performed in a similar manner to set the winning probability for the item lottery.

Specifically, the item group includes various items such as ammunition for weapons, repair items for characters and weapons, fuel for those items, etc., and includes exclusive items with limited characters and weapons that can be used. . For each item, the character type and weapon type that can use the item are set in advance as parameter settings.

It should be noted that the item group may include common items that are not restricted in character type and weapon type that can be used as illustrated, as well as items that are not restricted. Then, the common item may be set as the winning probability setting target in the second lottery probability setting process.

In addition, in the second lottery probability setting process related to the item lottery, the character lottery may be the first lottery like the weapon lottery, and the winning character (character O11 in FIGS. 3 and 4) may be the first grant object. However, the previous weapon lottery may be treated as the first lottery, and the weapon that wins the lottery (weapon O13 in FIGS. 3 and 4) may be used as the first given object and its parameter settings may be used. Alternatively, both the character O11 and the weapon O13 may be used as first grant objects, and their parameter settings may be used as an OR condition to set the winning probability for the item group.

As described above, according to the second lottery probability setting process, the weapon that can be equipped by the character who won the first character lottery can always be won in the next weapon lottery, or the weapon can be easily won. In addition, it is possible to ensure that an item dedicated to a character won in a character lottery or a weapon won in a weapon lottery always wins in the last item lottery, or that the item can be easily won.

Now, in the continuous gacha of this embodiment, each lottery process of character lottery, weapon lottery, and item lottery is performed as a series of lottery processes. Accepts a cancel instruction operation to cancel. Then, when the player 2 performs a cancel instructing operation and selects to stop the repeated gacha in the middle, the series of lottery processing is terminated.

In the case of this midway cancellation, the point consumption amount is reduced by a predetermined amount and the billing process is performed. For example, if the point consumption for one consecutive gacha (character lottery, weapon lottery, and item lottery set gacha) is 300 points, canceling before the weapon lottery reduces the amount to 210 points, and canceling before the item lottery. In the case of , the amount is reduced to 240 points.

In addition, when accepting a cancel instruction operation, information on the previous lottery result (that is, the first grant object) and the winning probability related to the second lottery set based on the lottery result (that is, the result of the second lottery probability setting process) The information to be shown is displayed and presented to the player 2 .

First, the display of the information on the lottery result (the display of the information on the lottery result in the middle before all the consecutive gachas are completed) is performed by displaying the information indicating the hint of the winning first grant object. For example, the silhouette of the first grant object may be displayed, or the character type or weapon type of the first grant object may be displayed. According to this, the player 2 can predict the winning first grant object from the silhouette, for example, and proceed to the next lottery, or, conversely, perform a cancel instructing operation to select cancellation in the middle. In addition, the probability of winning in the next lottery can be referred to as a criterion for judgment at that time. Therefore, the next lottery can be executed while increasing the expectation of the player 2 for the result of the lottery between the lotteries. It should be noted that information indicating the first imparted object, such as the character name and weapon name of the first imparted object, may be displayed instead of displaying the information indicating the hint.

[Function configuration]
1. Server System FIG. 5 is a block diagram showing a functional configuration example of the server system 1100 . As shown in FIG. 5, the server system 1100 includes an operation input section 100s, a server processing section 200s, an image display section 390s, a sound output section 392s, a communication section 394s, and a server storage section 500s.

The operation input unit 100s is for inputting various operations for system management, maintenance, etc., and can be realized by, for example, a keyboard, mouse, touch panel, or the like. In FIG. 1, the keyboard 1106 and the touch panel 1108 correspond to this.

The server processing unit 200s can be realized, for example, by a processor, which is an arithmetic circuit such as a CPU, GPU, ASIC, or FPGA, or an electronic component such as an IC memory. Controls data input/output. Based on predetermined programs and data, operation input signals from the operation input unit 100s, data received from the user terminal 1500, and the like, various arithmetic processing is performed, and the operation of the server system 1100 is centrally controlled. In FIG. 1, the control board 1150 and its CPU 1151 correspond to this.

The server processing section 200s includes a user management section 210, a billing processing section 220, a game management section 230, a clock section 280s, an image generation section 290s, a sound generation section 292s, and a communication control section 294s.

The user management unit 210 manages user registration processing and data of each registered user (player 2) linked to an account. For example, it is possible to execute a process of assigning a unique account to a registered user, a registration information management process of registering and managing personal information for each account, a usage history management process of managing log-in and log-out histories, and the like. Of course, management processing of other data linked to user accounts other than these can also be included as appropriate.

The billing processing unit 220 performs billing processing according to the point purchase operation by the player 2 and gives the player 2 points corresponding to the purchase amount.

The game management unit 230 performs various processes related to game execution management. Since the game of this embodiment is a client-server type online game, the game management unit 230 performs control to provide data necessary for game play while communicating with the user terminal 1500 . The game management unit 230 includes a game progress control unit 231, a first lottery probability setting unit 233, a first lottery processing unit 235, a second lottery probability setting unit 240, a lottery result hint display control unit 251, and a A second lottery probability display control unit 253 , a cancellation processing unit 255 and a second lottery processing unit 257 are included.

The game progress control unit 231 communicates with the user terminal 1500 at any time, controls the progress of game play in the user terminal 1500, and performs processing related to reflection of play results.

The first lottery probability setting unit 233, when executing a series of lottery processing when a lottery execution instruction operation is accepted (when a repeated gacha menu is selected), selects a type 1 object to be lottery in the first lottery. A winning probability reference value (in this embodiment, a winning probability reference value for a rare object) determined for the objects in the group is set as the winning probability relating to the first lottery.

The first lottery processing unit 235 draws lots from the first type object group based on the winning probability set by the first lottery probability setting unit 233 to determine the first grant object to be given to the player 2 .

The second lottery probability setting unit 240 performs the second lottery probability setting process in the manner described above, and the winning probability reference value (in this embodiment, Winning probability of the second lottery is set by adjusting the winning probability reference value of the rare object). In the present embodiment, primary setting using combination compatibility and secondary setting using rarity are sequentially performed. The second lottery probability setting section 240 includes a combination compatibility determination section 241 . The combination compatibility determination unit 241 determines combination compatibility with the first imparted object according to the matching condition for the objects of the second type object group.

After the first lottery and before executing the second lottery, the lottery result hint display control unit 251 causes the image display unit 390 of the user terminal 1500 to display a hint of the object won in the previous lottery.

After the first lottery and before executing the second lottery, the second lottery probability display control unit 253 displays the winning probability of the second lottery set by the second lottery probability setting unit 240 as an image on the user terminal 1500. section 390 to display.

After the first lottery and before the execution of the second lottery, the cancel processing unit 255 receives a cancel instruction operation for the second lottery. Then, in response to the cancel instruction operation of the player 2, the execution of the second lottery is cancelled, and the series of lottery processing is terminated.

The second lottery processing unit 257 draws lots from among the second object group based on the winning probability set by the second lottery probability setting unit 240 to determine the second given object to be given to the player 2 .

The clock unit 280s clocks the current date and time, the time limit, and the like using the system clock.

The image generation unit 290s generates an image related to system management of the server system 1100, etc., and outputs the image to the image display unit 390s.

The sound generation unit 292s is implemented by executing an IC or software that generates and decodes audio data, and generates or decodes audio data such as operation sounds and BGM related to system management of the server system 1100 and video distribution. Audio signals related to system management are output to the sound output unit 392s.

The communication control unit 294s performs communication connection and data processing for data communication with an external device (for example, the user terminal 1500) via the communication unit 394s, and implements data exchange with the external device.

The image display unit 390s displays various screens for system management and the like based on the image signal input from the image generation unit 290s. For example, it can be realized by an image display device such as a flat panel display, a cathode ray tube (CRT), a projector, or a head-mounted display. In FIG. 1, the touch panel 1108 corresponds to this.

The sound output unit 392s emits the audio signal input from the sound generation unit 292s. In FIG. 1, a speaker (not shown) included in the main unit 1101 or the touch panel 1108 corresponds to this.

The communication unit 394s is connected to the communication line 9 to realize communication. For example, it can be realized by a radio communication device, a modem, a TA (terminal adapter), a jack of a communication cable for wired use, a control circuit, or the like. In FIG. 1, the communication device 1153 corresponds to this.

In the server storage unit 500s, a program for operating the server system 1100 and realizing various functions of the server system 1100, data used during execution of the program, etc. are stored in advance, or stored each time processing is performed. Temporarily stored. For example, it can be realized by IC memories such as RAM and ROM, magnetic disks such as hard disks, and optical disks such as CD-ROMs and DVDs. In FIG. 1, the IC memory 1152 and the storage 1140 correspond to this.

The server storage unit 500s also stores a server program 501, a distribution game client program 503, user management data 510, game initial setting data 520, play data 540, and the current date and time 800. FIG. In addition, other necessary data such as timers, counters, and various flags are stored as appropriate.

The server program 501 is a program for causing the server processing section 200 s to function as the user management section 210 , billing processing section 220 and game management section 230 . It should be noted that a program functioning as the image generation unit 290s, the sound generation unit 292s, and the communication control unit 294s can be included as appropriate.

The distributed game client program 503 is the original of the game client program 502 (see FIG. 8) downloaded to the user terminal 1500 .

The user management data 510 stores information about registered users who are players 2 . FIG. 6 is a diagram showing a data configuration example of one piece of user management data 510. As shown in FIG. As shown in FIG. 6, the user management data 510 includes an account 511 of the corresponding player 2, settlement medium ledger data 512, possessed object list 513, player level 514, play date and time, play time, number of times played, and the like. Play history 515 is included.

The payment medium ledger data 512 includes information on the balance of electronic payment medium (points equivalent to virtual currency in this embodiment) linked to the corresponding player 2, for example, history of point purchase date and number of purchases (billing amount), points Stores the date and time of consumption and the history of the number of consumption.

The possessed object list 513 stores a list of objects such as characters, weapons, and items that the player 2 obtains during the course of the game and currently possesses.

Returning to FIG. 5, the game initial setting data 520 stores various initial setting data for executing the game of this embodiment. Game object data 530 is stored in the game initialization data 520 .

The game object data 530 is prepared for each object such as characters, weapons, and items that can be given to the player 2 during the course of the game. FIG. 7 is a diagram showing a data configuration example of one game object data 530. As shown in FIG. As shown in FIG. 7, the game object data 530 includes an object name 531 of the relevant object, a category (character/weapon/item) 532 into which the object is classified, parameter settings 533 of the object, and a winning probability. A reference value 536 is stored. In addition, for example, if it is a character, its model data, motion data used for its motion control, initial values of various ability values such as offensive power and defensive power, etc. are stored.

Parameter settings 533 include character type 534 and rarity 535 . If the corresponding object is a character, the character type is set in the character type 534. If the object is a weapon, the character type of the character who can equip it is set. type is set.

The winning probability reference value 536 is set, for example, when the corresponding object is a rare object, and a value corresponding to its rarity is predetermined.

Returning to FIG. 5, the play data 540 is prepared for each player 2 playing the game (that is, for each user terminal 1500 connected to the server system 1100) and describes the play status (progress) of the game.

2. User Terminal FIG. 8 is a block diagram showing a functional configuration example of the user terminal 1500 . As shown in FIG. 8 , the user terminal 1500 includes an operation input section 100 , a terminal processing section 200 , an image display section 390 , a sound output section 392 , a communication section 394 and a terminal storage section 500 .

The operation input unit 100 is used by a user to input various operations, and can be realized by, for example, a button switch, joystick, touch pad, trackball, acceleration sensor, angular velocity sensor, CCD module, and the like. In FIG. 2, the direction input key 1502, the home key 1504, and the touch panel 1506 correspond to this.

The terminal processing unit 200 can be realized, for example, by a processor, which is an arithmetic circuit such as a CPU, GPU, ASIC, or FPGA, or an electronic component such as an IC memory. Controls data input/output. Based on predetermined programs and data, operation input signals from the operation input unit 100, data received from the server system 1100, and the like, various arithmetic processing is performed, and the operation of the user terminal 1500 is centrally controlled. In FIG. 2, the control board 1550 and its CPU 1551 correspond to this. The terminal processing unit 200 in this embodiment includes a user terminal calculation unit 270 , a timer unit 280 , an image generation unit 290 , a sound generation unit 292 and a communication control unit 294 .

The user terminal calculation unit 270 executes various calculation processes for causing the user terminal 30 to function as a terminal for the player 2 to play the game. For example, the user terminal computing section 270 includes an operation signal transmission control section 271 and a game screen display control section 273 .

The operation signal transmission control unit 271 performs processing for transmitting various data and request information to the server system 1100 according to operation input to the operation input unit 100 .

The game screen display control unit 273 performs control for displaying the game screen based on various data received from the server system 1100 . For example, if the online game of the present embodiment is realized as a web game, web technology that actively controls screen display using Java (registered trademark) and CSS (Cascading Style Sheets) together with HTML based on a web browser. , Adobe (registered trademark) Flash or the like. Of course, other methods may also be used. In addition, in the configuration of this embodiment, the game space image (for example, 3DCG, etc.) that is the base of the game screen is generated by the server system 10, but a configuration is also possible in which the game space image is generated by the user terminal 1500. . In that case, the game screen display control section 273 controls the objects placed in the virtual three-dimensional space for generating the 3DCG.

The image generation unit 290 cooperates with the game screen display control unit 273 to generate an image for displaying one game screen in one frame time (for example, 1/60 second) based on various data received from the server system 1100 . A signal is generated, and the generated image signal is output to the image display section 390 . For example, it can be implemented by a processor such as a GPU, a digital signal processor (DSP), a video signal IC, a program such as a video codec, an IC memory for drawing frames such as a frame buffer, and the like.

The sound generation unit 292 is implemented by, for example, a digital signal processor (DSP), a processor such as a speech synthesis IC, an audio codec for playing back audio files, etc., and generates audio signals such as game sound effects, BGM, and various operation sounds. is generated and output to the sound output unit 392 .

The communication control unit 294 performs communication connection and data processing for data communication with an external device (for example, the server system 1100) via the communication unit 394, and implements data exchange with the external device.

The image display unit 390 displays various screens such as game screens based on the image signal input from the image generation unit 290 . For example, it can be realized by an image display device such as a flat panel display, a projector, or a head-mounted display. In FIG. 2, the touch panel 1506 corresponds to this.

The sound output unit 392 emits sound effects, BGM, etc. related to the game based on the audio signal input from the sound generation unit 292 . In FIG. 2, speaker 1510 corresponds to this.

The communication unit 394 is connected to the communication line 9 to realize communication. For example, it can be realized by a wireless communication device, a modem, a TA, a jack of a communication cable for wired use, a control circuit, or the like. In FIG. 2, the wireless communication module 1553 corresponds to this.

In the terminal storage unit 500, a program for operating the user terminal 1500 and realizing the functions provided by the user terminal 1500, data used during execution of this program, etc. are stored in advance, or temporarily stored each time processing is performed. stored in For example, it can be realized by IC memories such as RAM and ROM, magnetic disks such as hard disks, and optical disks such as CD-ROMs and DVDs. In FIG. 2, the IC memory 1552 and memory card 1540 correspond to this.

The terminal storage unit 500 also stores a game client program 502 and a current date and time 801 . The game client program 502 is a program for causing the terminal processing section 200 to function as the user terminal computing section 270 . This game client program 502 may be a dedicated client program corresponding to a technical method for realizing an online game, or may be composed of a web browser program and plug-ins for realizing interactive image display. In this embodiment, it is a copy of the distribution game client program 503 (see FIG. 5) provided by the server system 1100 .

[Process flow]
FIG. 9 is a flow chart for explaining the flow of processing related to execution of repeated gacha in server system 1100 . The processing described here is implemented by reading and executing the server program 501 by the server processing unit 200s. It is assumed that the user terminal 1500 has already undergone a separate login procedure.

As shown in FIG. 9, in the server system 1100, when detecting a lottery execution instruction operation on the user terminal 1500 (step S11: YES), first, the first lottery probability setting unit 233 sets the winning probability related to the first lottery. Set (step S13). In this embodiment, the winning probability of the first character lottery is set based on the winning probability reference value of the character.

Subsequently, the first lottery processing unit 235 conducts a first lottery (character lottery) (step S15). Here, an object (character) to be awarded to the player 2 is determined by drawing lots from among the character group, which is the first type object group, based on the winning probability set in step S13.

After completing the first lottery, the second lottery probability setting unit 240 performs the second lottery probability setting process (steps S17 to S23). First, the combination compatibility determination unit 241 determines combination compatibility (step S17). In the present embodiment, based on the character type of the first grant object (for example, a character won in a character lottery), an object that matches the first grant object in combination among the second type objects is determined. For the determination, a corresponding condition related to the character type is used.

Then, the second lottery probability setting unit 240 increases the winning probability of the object judged to match the combination compatibility in step S17 among the type 2 object group, and performs the primary setting of the winning probability (step S19). ).

Subsequently, the second lottery probability setting unit 240 selects an object that satisfies a corresponding rarity condition from among the second type object group based on the rarity of the first grant object (step S21), and sets the winning probability of the object. Secondary setting is performed (step S23). For example, the winning probability is increased for an object having the same rarity as the first grant object, among the objects that match the combination compatibility with the first grant object.

After completing the second lottery probability setting process, the process proceeds to step S25. Then, in step S25, the lottery result hint display control unit 251 controls the display of the hint of the object won in the previous lottery. Further, the second lottery probability display control unit 253 performs display control of the winning probability related to the second lottery (the next lottery) set in steps S19 and S23 (step S27). Then, the cancellation processing unit 255 accepts a cancellation instruction operation for the second lottery. Then, when the cancellation instruction operation on the user terminal 1500 is detected (step S29: YES), the cancellation processing unit 255 cancels the execution of the second lottery and ends the series of lottery processing (step S31). . Then, the object won in a series of lottery processes before the cancellation is given to the player 2 (step S33). After that, the billing processing unit 220 performs billing processing by subtracting the cancellation amount from the predetermined amount of points determined as the consideration for the repeated gacha (step S35), and ends this processing.

On the other hand, if the cancellation instruction operation is not accepted (step S29: NO), then the second lottery processing unit 257 conducts a second lottery (step S37). Here, an object to be awarded to the player 2 is determined by drawing lots from among the type 2 object group based on the winning probability set in steps S19 and S23. In the second weapon lottery following the character lottery, the weapon to be given is determined, and in the next and final item lottery, the item to be given is determined.

After that, if there is a lottery to be performed next (step S39: YES), the process returns to step S17, and the above process is repeated with the next lottery as the second lottery. Then, when the final lottery is executed in step S37 (step S39: NO), the objects won in a series of lottery processes (in this embodiment, three objects of a character, a weapon, and an item) are given to the player 2. (step S41). The given object is added to the possessed object list 513 of the player 2 . Then, the billing processing unit 220 bills a predetermined amount of points determined as consideration for the repeated gacha (step S43), and ends this processing.

As described above, according to the present embodiment, it is possible to perform a series of lottery processes in which lotteries of different categories are executed in order. Then, between each lottery, the winning probability of the object in the first lottery can be changed based on the parameter setting of the first grant object that won the first lottery. Specifically, among the second-type object group, a change can be made to increase the winning probability of an object that matches the combination compatibility with the first grant object or an object of the same rarity. Therefore, it is possible to make the consecutive lottery processes related to each other, and to increase the gambling spirit of the player 2 .

It should be noted that the form to which the present invention can be applied is not limited to the above-described embodiment, and the addition, omission, or change of constituent elements can be applied as appropriate.

[Modification 1]
For example, in the above-described embodiment, the server system 1100 is the main processing entity for game management. It can also be configured to execute. For example, when the user terminal is the subject of processing, an example of the functional configuration of the user terminal 1500A is as shown in FIG. In this case, the user terminal 1500A becomes the computer system. In FIG. 10, the same reference numerals are given to the same configurations as in the above-described embodiment.

As shown in FIG. 10, in the user terminal 1500A of this modification, the terminal processing section 200 has the game management section 230, and the game screen display control section 273 is omitted. That is, the user terminal 1500A of this modified example does not acquire data for displaying the image of the game screen from the server system 1100, but the game management unit 230 of itself executes processing related to game management to progress the game. to generate the image of the game screen. The storage unit 500 of the user terminal 1500A stores a game program 504 for causing the terminal processing unit 200 to function as the user terminal calculation unit 270 and the game management unit 230, and stores user management data related to the player 2 of the user terminal 1500A. 510, play data 540, and game initial setting data 520 are stored. The processing flow of the user terminal 1500A of this modified example is basically the same as the flowchart shown in FIG.

[Modification 2]
Further, in the above-described embodiment, based on the parameter settings of the first grant object that won the first lottery, among the objects to be lottered in the second lottery in the subsequent order, the object that matches the combination compatibility or the same object is selected. We decided to increase the winning probability of objects of rarity. Alternatively, the winning probability of these objects may be reduced. In this case, the reference value adjustment process may be defined as a process of reducing the winning probability, such as subtracting a predetermined value from the winning probability reference value of the target object.

According to this modification, for example, in the second weapon lottery, it is possible to make it difficult to win a weapon that can be equipped by the character who won the first character lottery. Alternatively, if the character winning the first lottery is, for example, a super-rare character, it is possible to make it difficult to win a super-rare weapon in the weapon lottery.

[Modification 3]
Further, in the above embodiment, character lottery, weapon lottery, and item lottery are performed in order as a series of lottery processes. In addition, there may be two types, or four types or more, and the order in which the lottery is performed is not particularly limited. Also, the order may be determined based on the player's 2 selection operation. In this case, when the game management unit 230 detects a lottery execution instruction operation, the game management unit 230 serves as lottery type selection means to accept a lottery order selection operation and determine the order. At this time, when the player 2 selects the order in which the weapon lottery is performed first and then the character lottery is performed, the second lottery probability setting process after the weapon lottery is performed based on the parameter setting of the weapon won in the weapon lottery. Then, the probability of winning the character lottery is set. Also, of course, the objects to be gacha are not limited to the characters, weapons, and items in the above embodiments.

[Modification 4]
Also, prior to the first lottery, a group (character type in the above embodiment) based on the combination compatibility to be the lottery target may be selected. In this case, for example, the game management unit 230, as the first group lottery means and the first given object lottery means, first performs a lottery from the character types (types A, B, C, . . . ). Select the character type for the lottery. Subsequently, characters of character types other than the selected character type (selection type) are excluded from the lottery, and their winning probabilities are set to zero. Then, a character lottery is conducted to provide the player 2 with a selection type character.

The winning probability of characters other than the selection type is not limited to zero, and may be set lower than the winning probability of the selection type character. For example, a predetermined value is subtracted from the winning probability reference value for characters other than the selection type to reduce the winning probability.

Also, the group (character type; selection type) to be selected by lottery may be selected by the player 2 . In this case, for example, the group selection operation is accepted together with the lottery execution instruction operation. A group selection operation can also be accepted in exchange for consumption of a given value (points).

[Modification 5]
Alternatively, a change instruction operation by the player 2 may be accepted in exchange for consumption of a given consideration, and the winning probability set in the second lottery probability setting process may be changed based on the adjustment value corresponding to the consideration. The consideration can be a predetermined number of points set in advance, and may be set in advance together with an adjustment value for the winning probability. The adjustment value can be a multiplier, an addition value, or a subtraction value by which the winning probability is multiplied. Then, when the change instruction operation is received before the execution of the second lottery, the winning probability set for the object that matches the combination compatibility with the first grant object or the object of the same rarity is changed using the adjustment value, for example. Increase and change.

It should be noted that instead of increasing the odds of winning an object with matching compatibility, the odds of winning may be reduced for objects with unmatched compatibility or different rarities. Also, consumption of consideration is not limited to consumption of points, and may be consumption of items. For example, it can be realized by preparing an item or the like that increases the winning probability for objects that match in combination or objects of the same rarity.

[Modification 6]
Further, in the above-described embodiment, for the character lottery performed first, the lottery process is performed using the winning probability reference value set for the character as it is. On the other hand, the winning probability (winning probability reference value) related to the first lottery may be changed by receiving a change instruction operation of the player 2 in exchange for consumption of a given consideration. The change instruction operation can be accepted together with the lottery execution instruction operation. Further, the consideration may be a predetermined number of points set in advance, and may be set in advance together with the adjustment value of the winning probability. The adjustment value can be a multiplier, an addition value, or a subtraction value by which the winning probability is multiplied. Then, when the change instruction operation is accepted, the winning probability reference value of the first type object group is changed using the adjustment value.

Incidentally, when performing the change instruction operation here, the group (character type) for which the winning probability is to be changed may be randomly selected or the player 2 may be allowed to select it, in the same manner as in the fourth modification. Then, the winning probability may be changed by, for example, increasing the winning probability of the character of the selection type, or decreasing the winning probability of the character of the character type other than the selection type. Furthermore, consumption of consideration is not limited to consumption of points, and may be consumption of items. For example, it can be realized by preparing a character with a specific character type set as a parameter setting, or an item or the like that increases the winning probability of a rare object of a specific rarity (for example, super rare).

[Modification 7]
In addition, in the second lottery probability setting process of the above-described embodiment, the probability of winning the second lottery is set based on two parameter settings of character type and rarity. Alternatively, only the rarity of the first grant object may be used to variably set the probability of winning the second lottery. According to this, when a super-rare rare object is won in the first lottery, it is possible to make it easier to win a super-rare object in the second lottery or, conversely, to make it harder to win.

[Modification 8]
Further, in the above embodiment, character type and rarity are exemplified as parameter settings, but other parameter settings can be used to narrow down the objects that increase or decrease the winning probability. For example, in a series of lottery processes in which the first lottery is a character lottery and the second lottery is a weapon lottery as in the above embodiment, among the weapons that match the combination compatibility, a weapon of a specific weapon type (for example, a weapon with a long weapon type) is selected. It is also possible to increase the probability of winning a weapon for a distance attack). Which weapon type to increase the probability of winning can be realized, for example, by receiving the selection operation of the player 2 in exchange for consumption of consideration.

[Modification 9]
Further, in the above-described embodiment, the continuous gacha in which the lottery is performed multiple times in exchange for consumption of a predetermined amount of points has been described. Also, at that time, the consideration for the later lottery may be changed according to the result of the earlier lottery. In this case, the game management section 230 variably sets the point consumption amount of the second lottery as the second lottery price determination means according to the first grant object. For example, the higher the rarity of the first grant object is, the higher the point consumption amount is, and the lower the rarity is, the lower the point consumption amount is. According to this, the point consumption amount required for the second lottery can be reduced based on the lottery result of the first lottery.

[Modification 10]
Further, the winning probability reference value is not limited to the value for each rarity of super rare and rare as illustrated, and may be configured to be set individually for each object. Also, it is possible to set a winning probability reference value for each non-rare object whose rarity is common. However, in that case, the winning probability set in the second lottery probability setting process is appropriately corrected so that the total value of the winning probability of all the objects to be lottery becomes 100.

[Modification 11]
In addition, each object is assigned to one of the tables, and in the lottery, the table is first selected, and the winning probability is calculated so that the objects belonging to the selected table are selected by lottery. It may be set.

Specifically, as shown in FIG. 11, the game object data 530 is stored in association with an affiliation table 539 to which the object belongs. There are a plurality of types of tables, such as a table by character type and a table by rarity, and one object belongs to one or more tables. Then, a table is selected from among a plurality of types of tables based on the parameter settings set for the first grant object that won the first lottery in step S15 of FIG. 9, and the selected table is used as a belonging table. Winning probability is set so that only the object with the object wins in the second lottery. For example, in step S17 of FIG. 9, a table corresponding to a character type that matches the combination compatibility with the first given object is selected, the winning probability of objects that do not belong to the table is set to zero, and the winning probability of objects that belong to the table is set to zero. be a value greater than zero. Further, in step S21 of FIG. 9, a table corresponding to a rarity that satisfies the matching condition with the first given object is selected, the winning probability of objects not belonging to the table is set to zero, and the winning probability of objects belonging to the table is zero. Let the probability be greater than zero.

REFERENCE SIGNS LIST 1000 Game system 1100 Server system 100s Operation input unit 200s Server processing unit 210 User management unit 220 Billing processing unit 230 Game management unit 233 First lottery probability setting unit 235 First lottery processing unit 240 Second lottery probability setting unit 241 Combination compatibility determination unit 251 Lottery result hint display control unit 253 Second lottery probability display control unit 255 Cancel processing unit 257 Second lottery processing unit 290s Image generation unit 292s Sound generation Section 294s...Communication control section 390s...Image display section 392s...Sound output section 394s...Communication section 500s...Server storage section 501...Server program 503...Distribution game client program 510...User management data 520...Game initial setting data 530...Game Object data 533 Parameter setting 540 Play data 1500, 1500A User terminal 100 Operation input unit 200 Terminal processing unit 270 User terminal calculation unit 271 Operation signal transmission control unit 273 Game screen display control unit 290 Image generation Unit 292 Sound generation unit 294 Communication control unit 390 Image display unit 392 Sound output unit 394 Communication unit 500 Terminal storage unit 502 Game client program 504 Game program 9 Communication line 2 Player

Claims (12)

A computer system that draws an object that can be used in a game from among a group of objects based on a drawing execution instruction operation by a user who operates a user terminal, and provides the user with the object selected by the drawing,
The objects include first-type and second-type objects with different roles,
The second type object is associated with one of a plurality of types of tables,
a first lottery means for drawing a lottery from among a group of first type objects and lottery for a first given object to be given to the user;
table selection means for selecting a table from among the plurality of types of tables based on parameter settings set in the first grant object;
a second lottery means for drawing a lottery from among the second type objects associated with the table selected by the table selection means, and lottery for a second given object to be given to the user;
wherein the first lottery means, the table selection means and the second lottery means function as a series of lottery processes. The table selection means selects, from the plurality of types of tables, a table that satisfies a corresponding condition based on parameter settings set in the first given object.
A computer system according to claim 1. The plurality of types of tables include at least tables by rarity,
The parameter setting includes at least a setting indicating rarity,
The table selection means selects, from the plurality of types of tables, a rarity table that satisfies a corresponding condition based on the rarity setting set for the first grant object.
3. The computer system of claim 2. The parameter settings include at least settings related to the combination compatibility of the first type and the second type objects,
The plurality of types of tables include at least a table grouped based on the combination compatibility and associated with the second type of objects;
The table selection means selects, from the plurality of types of tables, a table that satisfies a matching condition based on the combination compatibility set for the first imparted object.
3. The computer system of claim 2. The objects include a plurality of types of objects having different roles,
Lottery type selection means for determining the type to be the first type and the type to be the second type among the plurality of types based on the user's selection operation;
The computer system according to any one of claims 1 to 4, further comprising: means for controlling to display information indicating the first given object or information indicating a hint regarding the lottery result of the first given object on the user terminal before executing the lottery by the second lottery means;
The computer system according to any one of claims 1 to 5, further comprising: Means for changing the winning probability of each object included in the first type object group in exchange for consumption of a given consideration based on a change instruction operation by the user;
The computer system according to any one of claims 1 to 6, further comprising: a cancellation receiving means for receiving a cancel instruction operation for canceling the execution by the second lottery means after executing the lottery by the first lottery means and before executing the lottery by the second lottery means;
a canceling means for canceling the execution of the lottery by the second lottery means and ending the series of lottery processing when the cancellation is accepted by the cancellation accepting means;
The computer system according to any one of claims 1 to 7, further comprising: The consideration for the lottery by the first lottery means and the consideration for the lottery by the second lottery means are separate,
A second lottery price determination means for variably determining the lottery price of the second lottery means based on the lottery results of the first lottery means;
The computer system according to any one of claims 1 to 8, further comprising: A game system in which a user terminal and the computer system according to any one of claims 1 to 9 are communicatively connectable. A program for causing a user terminal to execute a process of drawing an object that can be used in a game from among a group of objects based on a user's drawing execution instruction operation, and giving the user the object selected by the drawing. hand,
The objects include first-type and second-type objects with different roles,
The second type object is associated with one of a plurality of types of tables,
A first lottery means for drawing a lottery from among a group of first type objects to draw a first given object to be given to the user;
table selection means for selecting a table from among the plurality of types of tables based on parameter settings set in the first grant object;
a second lottery means for drawing a lottery from among the second type objects associated with the table selected by the table selection means to draw a second grant object to be given to the user;
A program that causes the user terminal to function as a series of lottery processes by executing the first lottery means, the table selection means, and the second lottery means. An object lottery method in which a computer system draws an object that can be used in a game from a group of objects based on a user's instruction to execute a lottery, and provides the user with the object selected by the lottery,
The objects include first-type and second-type objects with different roles,
The second type object is associated with one of a plurality of types of tables,
a first lottery step of drawing lots from among a group of first type objects and lottery of a first given object to be given to the user;
a table selection step of selecting a table from among the plurality of types of tables based on parameter settings set in the first grant object;
a second lottery step of drawing lots from among the second type objects associated with the table selected in the table selection step, and lottery of a second given object to be given to the user;
and executing the first lottery step, the table selection step, and the second lottery step as a series of lottery processes.

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