JP7111487B2 - Computer system, game system, program, and lottery process execution control 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. .

Therefore, the present invention is intended to increase the gambling spirit of the user by giving relevance to the lottery processes that are continuously performed, or to make the lottery process more interesting than simply performing the lottery multiple times. The purpose is to provide technology that can

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 (for example, the server system 1100 in FIG. 1) that draws lots and gives the user an object selected by the lottery, wherein the objects include a plurality of types of objects with different roles, and the plurality of types of objects Among them, lottery type determination means (for example, lottery order determination unit 233 in FIGS. 7 and 12) that determines the type to be the first type and the type to be the second type, and the first type that is the first type object The winning probability of each object when performing the first lottery from the object group and the winning probability of each object when performing the second lottery from the second type object group which is the second type object Probability setting means (for example, lottery probability setting unit 235 in FIGS. 7 and 12) set based on the determination of the lottery type determination means, and the first lottery based on the winning probability set by the probability setting means Based on the winning probability set by the first lottery means (for example, the first lottery processing unit 237 in FIGS. 7 and 12) that draws a lottery for the first grant object to be given to the user, and the probability setting means. a second lottery means (for example, the second lottery processing unit 257 in FIG. 7 or FIG. 12) that performs a second lottery to lottery a second grant object to be given to the user; A computer system in which the probability setting means, the first lottery 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 types of objects to be the first type and the second type are determined from a plurality of types with different roles, and based on the determination, the winning probability related to the first lottery and the second lottery can be set. Then, a first lottery for drawing a first type object based on the determined winning probability related to the first lottery and a second lottery for drawing a second type object based on the winning probability related to the second lottery are performed in series. can be executed as a lottery process. According to this, it is possible to give relevance to the lottery processing which is continuously performed, and to increase the gambling spirit of the player, or to realize the lottery processing having a different interest than simply performing the lottery multiple times. be able to.

In the second invention, the probability setting means determines whether the lottery type determination means determines the first type or the second type, even if the lottery type is the same type. In the computer system of the first invention, all or part of the objects are set to have different winning probabilities.

According to the second invention, when focusing on a certain type, there are cases where objects of that type are selected as lottery targets in the first lottery executed first, and cases where objects of that type are selected as lottery targets in the second lottery in which the object is executed in order. The winning probabilities can be set so that the winning probabilities of the objects are different.

In a third invention, the object is set with parameters including at least a setting indicating rarity, and the probability setting means wins an object that satisfies a predetermined high rarity condition indicating that the rarity is high. The computer system according to the first or second invention, wherein the probability of the first lottery is set higher than that of the second lottery.

According to the third invention, when focusing on a certain type, the probability of winning an object that satisfies a high rarity condition among the objects of that type is the first higher than the case where the type is selected as a lottery target in the second lottery. The winning probability can be set so that the winning probability is higher in the case of the lottery target.

In a fourth aspect of the invention, the object is set with parameters including at least a setting indicating rarity, and the probability setting means wins an object that satisfies a predetermined high rarity condition indicating that the rarity is high. The computer system according to the first or second aspect of the invention, wherein which of the first lottery and the second lottery the probability is to be increased is set based on the instruction operation of the user.

According to the fourth invention, when focusing on a certain type, the probability of winning an object that satisfies a high rarity condition among the objects of that type is determined by the first lottery and the second lottery. It is possible to set based on the user's instruction operation which of the two is to be selected for the lottery.

In a fifth aspect of the invention, control is performed to display on the user terminal information indicating which of the first lottery and the second lottery has a higher probability of winning an object that satisfies the high rarity condition. The computer system of the third or fourth invention further comprises means for performing.

According to the fifth aspect, when focusing on a certain type, the winning probability of an object that satisfies a high rarity condition among the objects of that type is a lottery target for the type in the first lottery and the second lottery. It is possible to present to the user which of the cases where the lottery is targeted for the lottery at .

In a sixth aspect of the invention, the second lottery means sets the winning probability set by the probability setting means for each object included in the second type object group to the parameter set in the first grant object. A probability changing means (for example, the second lottery probability changing unit 240 in FIG. 7 or FIG. 12) that changes based on the setting is provided, and the second lottery is performed according to the winning probability changed by the probability changing means. The computer system according to any one of the first to fifth inventions, wherein the second grant object is selected by lottery.

According to the sixth invention, the second lottery is set for the second type object based on the parameter setting of the first grant object randomly selected from the first type object group in the first lottery. You can change the odds of winning.

In a seventh aspect of the invention, the probability changing means is configured such that, among the objects included in the second type object group, parameters are set to satisfy corresponding conditions based on parameter settings set to the first grant object. This is the computer system of the sixth invention, which changes the winning probability of the object that is in the box.

According to the seventh aspect, it is possible to change 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.

An eighth invention is the computer system according to the seventh invention, wherein the probability changing means has means for increasing the winning probability of an object whose parameters are set to satisfy the matching condition.

A ninth invention is the computer system according to the seventh invention, wherein the probability changing means has means for reducing the winning probability of an object whose parameter setting satisfies the corresponding condition.

According to the eighth or ninth invention, 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 tenth invention is the computer system according to any one of the seventh to ninth inventions, wherein the parameter setting includes at least a setting indicating rarity.

According to the tenth invention, it is possible to change 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.

The eleventh invention is the computer system according to any one of the seventh to ninth inventions, wherein the parameter setting includes at least a setting related to compatibility between the first type and the second type objects. be.

According to the eleventh invention, it is possible to change the winning probability of an object among the type 2 object group whose combination compatibility setting satisfies the matching condition with the setting of the first grant object.

In the twelfth invention, the probability setting means sets the winning probability of each object when performing the first lottery and/or the winning probability of each object when performing the second lottery to the lottery type The computer system according to any one of the first to eleventh inventions, wherein the setting is made based on the determination by the determining means and the play history of the user.

According to the twelfth invention, the winning probability of each object when performing the first lottery and/or the winning probability of each object when performing the second lottery is set in consideration of the play history of the user. be. Therefore, for example, objects that are likely to be won in the first lottery and objects that are likely to be won in the second lottery may change depending on the frequency and amount of billing and item consumption.

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

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

In a fourteenth invention, a user terminal ( For example, a program (for example, the game program 504 in FIG. 12) to be executed by the user terminal 1500A in FIG. A lottery type determination means for determining the type to be the first type and the type to be the second type, and the winning probability of each object when performing the first lottery from the first type object group which is the first type object probability setting means for setting, based on the determination of the lottery type determining means, a winning probability of each object when performing a second lottery from among the type 2 objects, which are the type 2 objects; first lottery means for performing the first lottery based on the winning probability set by the setting means to lottery the first given object to be given to the user; 2. The user terminal functions as a second lottery means for performing lottery to lottery a second grant object to be given to the user, and the lottery type determining means, the probability setting means, the first lottery means and the second lottery means. A program that causes a lottery means to execute a series of lottery processes.

According to the fourteenth 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 explaining the principle of a lottery probability setting process. The figure explaining lottery order selection operation. FIG. 10 is a diagram showing a data configuration example of consecutive winning probability definition data; 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;

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 components 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).

The 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 realized. 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, and performs 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 points equivalent to 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 and the like (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, thereby playing the game of the player 2. 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 right to open new game stages and maps, and the right to draw lots. In this embodiment, a plurality of objects that can be classified into three categories of "weapon", "character", 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 one-shot gacha, for example, the category selection operation of the player 2 is accepted, one of the categories of weapons, characters, 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 drawn from object groups of each category for each category of weapons, characters, and items. As a processing procedure, first, a lottery execution instruction operation is accepted. 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 accepted, the lottery order selection operation of the player 2 is accepted, and the execution order (lottery order) of the lottery for each category is determined. After that, a weapon lottery that draws a weapon to be given to the player 2 from the object group of the weapon category (the group of weapons prepared for the lottery), and the object group of the character category (the group of characters prepared for the lottery) A character lottery that draws a lottery for a character to be given to the player 2 from the lottery, and an item lottery that draws a lottery for an item to be given to the player 2 from the object group of the item category (item group prepared as a lottery target). Execute to perform a series of lottery processes. After that, the three objects of the winning weapon, character, and item are given to the player 2, and execution of the repeated gacha is finished.

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, different winning probabilities are determined in advance for single-shot gacha and for repeated gacha. The winning probability for the one-shot gacha is a value according to its rarity, and the higher the rarity of the object, the lower the winning probability and the harder it is to win. For example, Super Rare is 0.3%, Rare is 0.9%, and so on. The winning probability for repeated gacha will be described later.

The lottery process for the single-shot gacha is performed using the winning probability for the single-shot gacha. 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 set/changed based on the specified value for the repeated gacha, and used for the lottery process.

[principle]
1. Lottery probability setting process The lottery probability setting process is performed prior to the execution of the continuous gacha (a series of lottery processes), and whether the winning probability related to the lottery of each category is performed as the first lottery in which the lottery order of the category is first, It is set according to whether the lottery is performed as the second lottery in the later order. FIG. 3 is a diagram for explaining the principle of the lottery probability setting process, and shows a series of lottery processes (a) and (b) performed in different orders. In FIG. 3A, focusing on the two lotteries in the upper two rows, the first lottery, which is the first lottery, is the character lottery, and the second lottery, which is the second lottery, is the weapon lottery. That is, the first type is the character, and the second type is the weapon. Conversely, in FIG. 3B, the first lottery is the weapon lottery, and the second lottery is the character lottery (the first lottery is the weapon, and the second lottery is the character).

In this embodiment, the winning probabilities set by the lottery probability setting process are different between (a) when the character lottery is performed in the earlier lottery order and (b) when the character lottery is performed in the later lottery order. Specifically, if the lottery order of the character lottery is set first, the winning probability of "high-rare" characters whose rarity satisfies a predetermined high rarity condition is high, and the winning probability of "non-rare" characters is high. is set low (FIG. 3(a)). On the other hand, if the lottery order of the character lottery is set later, the winning probability of high-rare characters is lower than in the case of FIG. Also, although not shown, if the lottery order of the character lottery is placed last, the probability of winning a high-rare character is even lower than in the case of FIG. 3B, and the probability of winning a non-rare character is even higher. The high rarity condition can be, for example, "the rarity is super rare or rare", but only super rare objects may satisfy the high rarity condition. The same is true when focusing on the weapon lottery. If the lottery order of the weapon lottery comes first, it is easy to win a high-rare weapon (Fig. 3(a)), and if the lottery order comes later, it is difficult to win a high-rare weapon. becomes (Fig. 3(b)). The same is true when focusing on the item lottery.

That is, in the present embodiment, the winning probabilities are set such that if the lottery order is first, the rare object is more likely to be won in the lottery, and if the lottery order is later, the rare object is less likely to be won in the lottery. be.

In order to realize this, in the lottery probability setting process, first, a lottery order selection operation is received together with a lottery execution instruction operation, and the category of the object to be the first type and the category of the object to be the second type are determined. . In the present embodiment, an operation of designating the lottery order of each lottery of weapons, characters, and items in a series of lottery processes is accepted as a lottery order selection operation.

FIG. 4A is a diagram for explaining the lottery order selection operation, and shows an example of the lottery order selection screen displayed on the touch panel 1506 after the lottery execution instruction operation. As shown in FIG. 4(a), on the lottery order selection screen, three display bodies A11, A13, and A15 respectively indicating a weapon lottery, a character lottery, and an item lottery performed in a series of lottery processes are displayed on the left side of the screen. Three lottery order designation positions B11, B13, and B15 of "first", "second", and "last" are displayed on the right side of the screen. On this lottery order selection screen, if the player 2 wishes to execute the character lottery first, for example, the player 2 touches the display body A13 indicating the character lottery and moves it to the lottery order designation position B11 by performing a drag-and-drop operation. . FIG. 4(b) shows an example in which three displays A11, A13 and A15 are moved to desired lottery order designated positions B11, B13 and B15 in the same manner.

Here, on the lottery order selection screen, near the lottery order designation positions B11, B13, and B15, the odds of winning a rare object in the case of lottery in the corresponding lottery order are displayed. In this embodiment, the probability of winning a rare object increases as the lottery order goes up, so it is displayed that the probability of winning a rare object is high in the first lottery, somewhat high in the second lottery, and low in the last lottery. and presented to player 2. Therefore, the player 2 designates the lottery order by referring to the display, such as by designating the character lottery for the first lottery if he wants to obtain a character with a high rarity.

When the lottery order selection operation is accepted as described above, the order related to the operation is determined as the lottery order. Then, based on the determined lottery order, the winning probability for each lottery is set. For the setting, the winning probability for the repeated gacha described above is used. FIG. 5 is a diagram showing a data configuration example of winning probability definition data that defines winning probabilities for repeated gacha. As shown in FIG. 5, the winning probability definition data for repeated gacha (recurring winning probability definition data) is such that the lottery order of the category for each rare object is first, second, and last in a series of lottery processes. Stores the winning probability for each turn. Focusing on the character category, for example, in FIG. 5, if the lottery order is first, the winning probability of the corresponding rare object is set to the prescribed value of the winning probability enclosed by the dashed-dotted line. On the other hand, when the lottery order is the last, the winning probabilities of the corresponding rare objects are set to the prescribed values of the winning probabilities enclosed by the two-dot chain lines.

Basically, the winning probability of each rare object is set to the highest value when the lottery order is first, and is set to be stepwise lower in order of second and last. However, it is not necessary that all rare objects have different winning probabilities depending on the lottery order, and may include objects that have the same winning probability in each lottery order. In other words, the winning probability of some rare objects may change depending on the lottery order.

According to the lottery probability setting process described above, in a series of lottery processes in which different categories are randomly selected, the probability of winning a rare object can be set high for a category whose lottery order is first. Therefore, for example, if the player 2 specifies the lottery order of the character lottery first, it becomes easier for a character with a high rarity to be won in the character lottery. Instead, it becomes difficult to win weapons and items with high rarity in the weapon lottery and item lottery after the lottery order.

2. Second Lottery Probability Change Processing In this embodiment, after setting the winning probability as described above, a series of lottery processing is started, and the lottery for each category is performed based on the set winning probability in the determined order. After finishing the lottery for the category, a second lottery probability changing process is performed before the next lottery to change the winning probability related to the next lottery.

The change is made by adjusting the winning probability of the object (rare object) for the second lottery set in the lottery probability setting process, and at that time, the object (first grant object) won in the previous first lottery. parameter settings are used. The second lottery probability changing process will be described below, taking as an example the case where the lottery order is weapon lottery, character lottery, and item lottery.

2-1. Combination Compatibility FIG. 6 is a diagram for explaining the principle of the second lottery probability changing 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. 6, each character can be grouped into groups G211, G213, G215, . . . for each character type.

Then, in the second lottery probability changing 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. 6, each weapon can be grouped into groups G221, G223, G225, . . . for each character type. 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 "long-range attack", "middle-range attack", and "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 example of FIG. 6, the weapons belonging to the groups G221 and G223 are determined to be the weapons with matching compatibility with the character O11.

Thereafter, reference value adjustment processing is performed with weapons of groups G221 and G223 that match in combination compatibility as target objects, and the winning probabilities of each are changed primarily. 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 (set winning probability setting value) set for the target object. A process of multiplying the winning probability setting value of the target object by a predetermined value (for example, 1.2) may be performed. In the example of FIG. 6, the process here makes it possible to make 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 (weapons of common rarity 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 subject to changing the winning probability in the second lottery probability changing 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 FIG. 6) may be decreased. 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 lowering the winning probability of the target object by, for example, subtracting a predetermined value from the winning probability set 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, in the example of FIG. 6, the weapon that wins the second lottery is always a weapon that can be equipped by the character O11. 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.

2-2. Rarity In the second lottery probability change process of the present embodiment, after the winning probability is changed primarily 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 changed to 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 changed secondarily 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 example of FIG. 6, the rarity of the character O11 who won the first lottery is Super Rare. secondly change the winning probabilities for the weapons O13, O21, etc. The secondary change 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. that have undergone the primary change. 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.

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

After the second lottery probability change processing is performed for the weapon lottery as described above, a lottery is performed from among the weapon group, which is the second type object group, based on the changed winning probability, and the weapon to be given to the user is selected. decide. After that, prior to the next item lottery, the second lottery probability change process is performed in the same manner to change the winning probability related to 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 subject to change of winning probability in the second lottery probability change process.

In addition, in the second lottery probability change processing related to the item lottery, the character lottery may be the first lottery like the weapon lottery, and the winning character (character O11 in FIG. 6) may be the first grant object. The previous weapon lottery may be regarded as the first lottery, and the winning weapon (weapon O13 in FIG. 6) 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 the first grant objects, and their parameter settings may be used as OR conditions to change the winning probability of the item group.

As described above, according to the second lottery probability changing process, it is possible to ensure that the weapon that can be equipped by the character who won the first character lottery wins in the next weapon lottery, or makes it easier to win the weapon. 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 final item lottery, or that the item can be easily won. Therefore, for example, if the first lottery is a character lottery and the second lottery is a weapon lottery, the above-described lottery probability setting process makes it easier to win a character with a high rarity in the character lottery. Then, by the second lottery probability change processing, in the subsequent weapon lottery, the weapon that can be equipped to the character who won the character lottery is always won or is likely to be won.

Now, in the continuous gacha of the present embodiment, each lottery process of the weapon lottery, the character lottery, and the 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 recurring 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 is 300 points, it will be reduced to 210 points if canceled before the second lottery, and will be reduced to 240 points if canceled before the third (final) lottery. and so on.

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 changed based on the lottery result (that is, the result of the second lottery probability change process) The information to be shown is displayed and presented to the player 2 .

First, the display of information on the lottery result (display of information on the lottery result in the middle before all the consecutive gachas are completed) is performed by displaying information indicating a hint of the first given object that has been won. 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 advance 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. 7 is a block diagram showing a functional configuration example of the server system 1100 . As shown in FIG. 7, 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 lottery order determination unit 233, a lottery probability setting unit 235, a first lottery processing unit 237, a second lottery probability change unit 240, and lottery result hint display control. It includes a section 251 , a second lottery probability display control section 253 , a cancellation processing section 255 and a second lottery processing section 257 .

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 lottery order determination unit 233 performs the lottery probability setting process in the above-described manner together with the lottery probability setting unit 235 when executing a series of lottery processing when the lottery execution instruction operation is accepted (when the repeated gacha menu is selected). and receives a lottery order selection operation to determine the lottery order of each category of weapons, characters, and items.

The lottery probability setting unit 235 sets the lottery winning probability of each category based on the lottery order determination by the lottery order determination unit 233 .

The first lottery processing unit 237 draws lots from the first type object group based on the winning probability set by the lottery probability setting unit 235 to determine the first grant object to be given to the player 2 .

The second lottery probability changing unit 240 performs the second lottery probability changing process in the manner described above, and the object (rare object) of the type 2 object group to be lottered in the second lottery is set in the lottery probability setting process. The winning probability related to the second lottery is changed by adjusting the winning probability set value. In this embodiment, a primary change using combination compatibility and a secondary change using rarity are sequentially performed. The second lottery probability change unit 240 includes a combination compatibility determination unit 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 changed by the second lottery probability change unit 240 as an image on the user terminal 1500. Displayed on the display unit 390 .

After the first lottery and before the second lottery is executed, 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 the second object group based on the winning probability changed by the second lottery probability changing 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 device 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 560, 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. 10) downloaded to the user terminal 1500 .

The user management data 510 stores information about registered users who are players 2 . FIG. 8 is a diagram showing a data configuration example of one piece of user management data 510. As shown in FIG. As shown in FIG. 8, the user management data 510 includes an account 511 of the corresponding player 2, payment medium ledger data 512, owned 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. 7, the game initial setting data 520 stores various initial setting data for executing the game of this embodiment. The game initial setting data 520 stores game object data 530 , single win probability definition data 540 , and repeat win probability definition data 550 .

The game object data 530 is prepared for each object such as weapons, characters, and items that can be given to the player 2 during the course of the game. FIG. 9 is a diagram showing a data configuration example of one game object data 530. As shown in FIG. As shown in FIG. 9, the game object data 530 stores an object name 531 of the relevant object, a category (weapon/character/item) 532 into which the object is classified, and parameter settings 533 of the object. be. 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.

Returning to FIG. 7, the one-shot winning probability definition data 540 stores the winning probability of each rare object used in the one-shot gacha. The odds of winning a non-rare object are determined by equally dividing the residual probability obtained by subtracting the sum of the odds of winning each rare object from 1 by the number of non-rare objects. As a lottery process, a lottery based on the total probability of non-rare objects is performed, and when a non-rare object is won, a step-by-step lottery is performed to select a non-rare object to be won from among the non-rare objects. You can do it.

The consecutive winning probability definition data 550 stores the winning probability for each lottery order of each rare object used in the consecutive gacha (see FIG. 5). The odds of winning a non-rare object are determined by equally dividing the residual probability obtained by subtracting the sum of the odds of winning each rare object from 1 by the number of non-rare objects. As a lottery process, a lottery based on the total probability of non-rare objects is performed, and when a non-rare object is won, a step-by-step lottery is performed to select a non-rare object to be won from among the non-rare objects. You can do it.

The play data 560 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. 10 is a block diagram showing an example of the functional configuration of the user terminal 1500. As shown in FIG. As shown in FIG. 10 , 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 arranged 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, the 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 of 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.

A game client program 502 is stored in the terminal storage unit 500 . 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 according to the technical method for realizing an online game, or may be composed of a web browser program and a plug-in or the like for realizing interactive image display. In this embodiment, it is a copy of the distribution game client program 503 (see FIG. 7) provided by the server system 1100 .

[Process flow]
FIG. 11 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. 11, when the server system 1100 detects a lottery execution instruction operation on the user terminal 1500 (step S11: YES), the lottery probability setting process is performed (steps S12 to S14). That is, first, the lottery order determination unit 233 controls the display of the lottery order selection screen, receives a lottery order selection operation (step S12), and determines the lottery order of each category of weapons, characters, and items (step S13). . Then, the lottery probability setting unit 235 refers to the consecutive winning probability definition data 550 based on the lottery order of each category determined in step S13, and reads out the winning probability corresponding to the lottery order of the category for each rare object. Set (step S14).

Subsequently, the first lottery processing unit 237 conducts a first lottery (character lottery) (step S15). Here, an object to be awarded to the player 2 is determined by drawing lots from among the type 1 object group based on the winning probability set in step S14.

After finishing the first lottery, the second lottery probability change unit 240 performs a second lottery probability change 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 changing 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 change of the winning probability (step S19). ).

Subsequently, the second lottery probability changing unit 240 selects an object that satisfies a matching condition for rarity 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 change 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 finishing the second lottery probability changing 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 controls the display of the winning probability of the second lottery (the next lottery) after the change 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 at 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 the second type object group based on the winning probability after the changes in steps S19 and S23.

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 weapon, character, and 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, the winning probability of the rare object in the earlier lottery is set higher than the winning probability of the rare object in the later lottery, and then a series of lottery processing is performed. It can be carried out. Therefore, the winning probability of the rare object can be increased for the category whose lottery order is first, and the winning probability of the rare object can be lowered when the lottery order is later even in the same category. Also, 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 continuous lottery processes related to each other, and to increase the gambling spirit of the player 2, or to realize the lottery process having a different interest than simply performing the lottery multiple times. can.

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. 12, the same reference numerals are given to the same configurations as in the above-described embodiment.

As shown in FIG. 12, in the user terminal 1500A of this modified example, 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 560, 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, when focusing on the type (category) of a certain object, in the case of lottery in the first lottery earlier in the lottery order than in the case of the second lottery later in the lottery order, the category However, on the contrary, setting may be made to increase the winning probability in the second lottery, which is later in the lottery order.

In addition, it may be configured to receive an instruction operation from the player 2 as to which of the first lottery or the second lottery the winning probability is to be increased. In this case, for example, in the lottery order selection operation, an instruction operation for instructing the lottery order in which the winning probability of the rare object is high is accepted. Then, for example, if the second lottery order is specified as the lottery order with the highest winning probability, the consecutive winning probability definition data illustrated in FIG. applies the winning probability surrounded by a dashed line with a high rare winning probability. Similarly, for the lottery order with the next highest winning probability and the lottery order with the lowest winning probability, an instruction operation is similarly received, and the winning probability of the corresponding consecutive winning probability definition data is added to the rare object of the category of the corresponding lottery order. assign.

It should be noted that the instruction operation of this modified example can also be accepted in exchange for consumption of a given value (points). 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 that increases the winning probability in each lottery order. In addition, in the case where the winning probability of the first lottery or the second lottery is increased by collecting the consideration from the player 2, if the rare object is actually won as a result of the lottery, the same Modifications may be made to increase the odds of winning an object of rarity.

[Modification 3]
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 objects that match the combination compatibility and the objects that have the same compatibility are 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, when the order of the lottery is a character lottery, a weapon lottery, and an item lottery, in the second weapon lottery, it is difficult to win a weapon that can be equipped by the character who won the first character lottery. becomes possible. 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.

Also, the process itself of changing the winning probability of objects that match in combination compatibility or objects of the same rarity may be deleted. In this case, the second lottery probability changing unit 240 becomes unnecessary, and the second lottery probability changing process of steps S17 to S23 in FIG. 11 becomes unnecessary.

[Modification 4]
In the above-described embodiment, the three categories of the lottery, namely, the weapon, the character, and the item, were exemplified. Also, the number of types is not limited to three, and may be two or four or more.

[Modification 5]
Also, prior to the first lottery (first lottery), a group (character type in the above embodiment) based on the combination compatibility to be targeted for the lottery may be selected. In this case, for example, first, a lottery is performed from character types (types A, B, C, . . . ) to select a character type to be selected. Subsequently, objects 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 first lottery is conducted to provide the player 2 with a selection type object.

The winning probability of non-selection type objects is not limited to zero, and may be changed to be lower than the winning probability of selection type objects. For example, a predetermined value is subtracted from the winning probability setting value for objects 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. Group selection operations may also be accepted in exchange for consumption of a given consideration.

[Modification 6]
In addition, in exchange for consumption of a given consideration, the change instruction operation of the player 2 is accepted, and the winning probability (winning probability set value) related to the first lottery (first lottery) set in the lottery probability setting process is changed to the may be changed based on the adjustment value corresponding to . 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 setting value of the first type object group is changed using the adjustment value.

Note that when performing the change instruction operation here, the group (character type) for which the winning probability is to be changed may be selected by lottery, 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 for which a specific character type is 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, it is also possible to receive a change instruction operation of the player 2 in exchange for consumption of a given consideration, and further change the winning probability changed in the second lottery probability change process 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, using the adjustment value, the changed winning probability of the object that matches the combination compatibility with the first given object or the object of the same rarity is changed, 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 8]
In addition, in the second lottery probability change process of the above embodiment, the winning probability of the second lottery is changed based on two parameter settings of character type and rarity. Alternatively, only the rarity of the first grant object may be used to change 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 9]
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 winning probability of the weapon of the attack for distance). 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 10]
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 point consumption amount for the second lottery is variably set 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 11]
Also, it is possible to set the winning probability for a non-rare object whose rarity is common. However, in that case, the winning probabilities changed in the second lottery probability changing process are appropriately modified so that the total value of the winning probabilities of all the objects to be selected becomes 100.

[Modification 12]
Also, the lottery probability setting unit 235 sets the lottery winning probability of each category based on the lottery order determination by the lottery order determining unit 233 . It is good also as setting a probability. For example, the amount of billing (including point consumption) in the past, the frequency of billing during a predetermined period in the past, the amount of item consumption in the past, the frequency of item consumption during a predetermined period in the past, etc. are high (or large). The probability of winning the rare object may be set to be higher as the number increases. As another example, the odds of winning a rare object may be changed based on the number of times played in the past or the frequency of play during a predetermined period in the past.

DESCRIPTION OF SYMBOLS 1000... Game system 1100... Server system 100s... Operation input part 200s... Server process part 210... User management part 220... Billing process part 230... Game management part 233... Lottery order determination part 235... Lottery probability setting part 237... 1st 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 unit 294s... Communication control unit 390s... Image display unit 392s... Sound output unit 394s... Communication unit 500s... Server storage unit 501... Server program 503... Distribution game client program 510... User management data 520... Game initial settings Data 530 Game object data 533 Parameter setting 540 Winning probability definition data for single shot 550 Winning probability definition data for repeated shot 540 Play data 1500, 1500A User terminal 100 Operation input unit 200 Terminal processing unit 270 Game 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 (15)

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 a plurality of types of objects with different roles,
A first lottery for drawing a lottery from a group of first-type objects, which are the first-type objects among the plurality of types, and a lottery for a group of second-type objects, which are the second-type objects among the plurality of types. Lottery order determination means for determining the order of the second lottery to be performed,
probability setting means for setting the winning probability of each object when performing the first lottery and the winning probability of each object when performing the second lottery based on the determination of the lottery order determining means;
a first lottery means for performing the first lottery based on the winning probability set by the probability setting means to lottery a first grant object to be given to the user;
a second lottery means for performing the second lottery based on the winning probability set by the probability setting means to lottery a second grant object to be given to the user;
wherein the lottery order determining means, the probability setting means, the first lottery means and the second lottery means function as a series of lottery processes. The probability setting means sets different winning probabilities for all or part of objects of the same type, based on the determination of the lottery order determining means.
2. The computer system of claim 1. The object has parameter settings including at least a setting indicating rarity,
The probability setting means sets the winning probability of an object that satisfies a predetermined high rarity condition indicating that the rarity is high so that the first lottery is higher than the second lottery.
3. A computer system according to claim 1 or 2. The object has parameter settings including at least a setting indicating rarity,
The probability setting means determines, based on the user's instruction operation, which of the first lottery and the second lottery is to be increased in winning probability of an object that satisfies a predetermined high rarity condition indicating that the rarity is high. to set
3. A computer system according to claim 1 or 2. means for controlling the user terminal to display information indicating which of the first lottery and the second lottery has a higher probability of winning an object that satisfies the high rare condition;
5. The computer system of claim 3 or 4, further comprising: The second lottery means
probability changing means for changing the winning probability set by the probability setting means for each object included in the second type object group based on the parameter setting set for the first grant object;
6. The computer system according to any one of claims 1 to 5, wherein the second lottery is performed according to the winning probability changed by the probability changing means to lottery the second grant object. The probability changing means changes the winning probability of an object having a parameter setting that satisfies a corresponding condition based on the parameter setting set to the first grant object, among the objects included in the second type object group. ,
7. A computer system according to claim 6. The probability changing means has means for increasing the winning probability of an object whose parameter setting satisfies the corresponding condition.
8. Computer system according to claim 7. The probability changing means has means for reducing the winning probability of an object whose parameter setting satisfies the corresponding condition.
8. Computer system according to claim 7. The parameter setting includes at least a setting indicating rarity,
A computer system according to any one of claims 7-9. The parameter settings include at least settings related to compatibility between the first type and the second type objects.
A computer system according to any one of claims 7-9. The probability setting means determines the winning probability of each object when performing the first lottery and/or the winning probability of each object when performing the second lottery by the lottery order determining means, and set based on the user's play history,
A computer system according to any one of claims 1-11. A game system configured such that a user terminal and the computer system according to any one of claims 1 to 12 can be communicatively connected. A program for causing a user terminal to execute a process of drawing an object that can be used in a game from a group of objects based on a user's drawing execution instruction operation, and giving the user the object selected by the drawing, the program comprising: ,
The objects include a plurality of types of objects with different roles,
A first lottery for drawing a lottery from a group of first-type objects, which are the first-type objects among the plurality of types, and a lottery for a group of second-type objects, which are the second-type objects among the plurality of types. Lottery order determination means for determining the order of the second lottery to be performed,
probability setting means for setting the winning probability of each object when performing the first lottery and the winning probability of each object when performing the second lottery based on the determination of the lottery order determining means;
A first lottery means for performing the first lottery based on the winning probability set by the probability setting means to lottery a first grant object to be given to the user;
a second lottery means for performing the second lottery based on the winning probability set by the probability setting means to lottery a second grant object to be given to the user;
A program that causes the user terminal to function as a series of lottery processing by executing the lottery order determining means, the probability setting means, the first lottery means, and the second lottery means as a series of lottery processes. Execution of a lottery process executed by a computer system that draws a lottery for an object that can be used in a game from among a group of objects based on a user's instruction to execute a lottery that operates a user terminal, and gives the object selected by the lottery to the user. A control method comprising:
The objects include a plurality of types of objects with different roles,
A first lottery for drawing a lottery from a group of first-type objects, which are the first-type objects among the plurality of types, and a lottery for a group of second-type objects, which are the second-type objects among the plurality of types. A lottery order determination step for determining the order of the second lottery to be performed,
a probability setting step of setting the winning probability of each object when performing the first lottery and the winning probability of each object when performing the second lottery based on the determination in the lottery order determining step;
a first lottery step of performing the first lottery based on the winning probability set in the probability setting step to lottery a first grant object to be given to the user;
a second lottery step of performing the second lottery based on the winning probability set in the probability setting step to lottery a second grant object to be given to the user;
and executing the lottery order determination step, the probability setting step, the first lottery step and the second lottery step as a series of lottery processing.

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