JP2019170739A - Computer system, game system, and program - Google Patents

Abstract

To provide a technique which can associate consecutively executed lottery processes with one another to arouse the speculative spirit of the user.SOLUTION: A server system 1100 comprises: a first lottery processing unit 235 which chooses by lottery a first impartment object that is chosen by lottery from a first-class object group for impartment to the user; a second lottery probability setting unit 240 which sets the win probability of each object in a second-class object group to "variable," the second-class object group containing objects the role of which is different from the first class, on the basis of parameters set in the first impartment object; and a second lottery processing unit 257 which chooses by lottery a second impartment object that is chosen by lottery from a second-class object group for impartment to the user. The first lottery processing unit 235, the second lottery probability setting unit 240, and the second lottery processing unit 257 function as a series of lottery processes.SELECTED DRAWING: Figure 5

Description

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

  2. Description of the Related Art Conventionally, games using a charging system called “item charging” that provides objects such as characters, weapons, and items that can be used in the game for a fee are known. For example, Patent Document 1 discloses a game in which a predetermined currency can be consumed and items can be purchased in the game. In addition, the item billing mode is not limited to a sales mode in which an object such as an item desired by a player (user) can be individually specified and purchased, and there is also a type in which an object selected by lottery is given to a user (so-called “gacha”). ").

Japanese Patent Laying-Open No. 2015-008988

  By the way, in the conventional gacha, even when this is repeatedly executed a plurality of times, the lottery process is performed individually, so that each lottery result has no relevance. Therefore, the game player (user) simply repeats the gacha execution instruction operation for the purpose of winning a desired object, and the process is monotonous, and there is a problem that the user's euphoria cannot be increased. .

  Therefore, an object of the present invention is to provide a technique capable of increasing relevance of a user by giving relevance to a lottery process performed continuously.

  According to a first invention for solving the above-described problem, an object usable for a game is selected from an object group based on a lottery execution instruction operation of a user operating a user terminal (for example, the user terminal 1500 in FIG. 1). A computer system (for example, the server system 1100 in FIG. 1 and the user terminal 1500A in FIG. 10) that selects a lottery and gives the object selected by the lottery to the user. There is a second type of object, and a first lottery means (for example, the first lottery processing unit in FIG. 5 or FIG. 10) for drawing a first grant object to be given to the user by lottery from the first type object group. 235) and the parameter setting set for the first grant object, Probability setting means (for example, the second lottery probability setting unit 240 in FIGS. 5 and 10) for variably setting the winning probability of each object, and a lottery from the second type object group based on the winning probability Second lottery means (for example, the second lottery processing unit 257 in FIG. 5 or FIG. 10) for lottering a second grant object to be given to the user, and the first lottery means, the probability setting means, and the The second lottery means is a computer system that functions as a series of lottery processes.

  The term “computer system” as used herein means that a system using a single computer or a system in which a plurality of computers are communicably connected may be used. According to the first invention, the first lottery and the second lottery for performing the lottery of objects having different roles can be executed as a series of lottery processes. And based on the parameter setting of the 1st grant object decided by lottery from the 1st type object group in the 1st lottery, the winning probability of the 2nd type object group made into the lottery object in the 2nd lottery is variably set. be able to. According to this, relevance can be given to the lottery process performed continuously, and a user's euphoria can be raised.

  In the second invention, each of the second type objects is associated with one of a plurality of types of tables, and the probability setting means is based on a parameter setting set for the first grant object. Selecting a table from the plurality of types of tables, and setting a winning probability so that only the second type object associated with the selected table wins in the lottery of the second lottery means, 1 is a computer system according to a first invention;

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

  According to a third aspect of the present invention, the probability setting means performs parameter setting that satisfies a corresponding condition based on the parameter setting set for the first grant object among the objects included in the second type object group. It is the computer system of the 1st or 2nd invention which sets the winning probability of the object which has been variably set.

  According to the third invention, among the second type object group, the winning probability of the object that satisfies the corresponding condition between the parameter setting and the parameter setting of the first grant object can be variably set.

  The fourth invention is the computer system according to the third invention, wherein the probability setting means has means for increasing or decreasing the winning probability of the object for which the parameter setting satisfying the corresponding condition is made.

  According to the fourth invention, it is possible to increase or decrease the winning probability of the object satisfying the corresponding condition in the second type object group.

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

  According to the fifth aspect, among the second type object group, the winning probability of the object that satisfies the corresponding condition with the rarity of the first granted object can be variably set.

  According to a sixth aspect of the present invention, in the computer system according to any one of the third to fifth aspects, the parameter setting includes at least a setting related to a combination compatibility of the first type and the second type object. is there.

  According to the sixth invention, among the second type object group, the winning probability of an object that satisfies a corresponding condition with the setting related to the combination compatibility with the setting related to the first grant object can be set variably. it can.

  In the seventh invention, the parameter setting includes at least a setting related to the combination compatibility of the first type and the second type objects, and the object included in the second type object group includes the combination. Grouping based on compatibility is made, and the probability setting means selects the combination compatibility group that satisfies the corresponding condition from among the grouping, and 1) an object belonging to a group other than the selected group Or 2) the computer system of the third invention, wherein the winning probability of an object belonging to a group other than the selected group is lower than the winning probability of an object belonging to the selected group. .

  According to the seventh invention, the winning probability is set so that only the object of the group whose combination compatibility satisfies the corresponding condition among the second type object group and the setting related to the first grant object is won. Can do. Alternatively, the winning probability can be set so that the objects of the group can be easily won.

  According to an eighth aspect of the invention, the parameter setting includes at least a setting related to a combination compatibility of the first type and the second type of object, and the object included in the first type object group includes the combination. The first grouping based on the compatibility is made, the objects included in the second type object group are the second grouping based on the combination compatibility, and the first lottery means includes the first lottery means A first group lottery means for selecting a group from among the groups based on the grouping, and a first lottery for selecting the first grant object from among the objects belonging to the group lottery by the first group lottery means. A given object lottery means, and the probability setting means is based on the second grouping By selecting the combination compatibility group that satisfies the corresponding condition from among the groups, 1) the winning probability of an object belonging to a group other than the selected group is zero, or 2) other than the selected group In the computer system according to the third aspect of the present invention, the winning probability of an object belonging to a group is lower than the winning probability of an object belonging to the selected group.

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

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

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

  According to a tenth aspect of the present invention, the control for causing the user terminal to display information indicating the first granted object or information indicating the hint of the first granted object before executing the lottery by the second lottery means. The computer system according to any one of the first to ninth aspects, further comprising:

  According to the tenth aspect, the first granted object won in the first lottery can be presented to the user before execution of the second lottery, or the hint of the first given object can be presented to the user.

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

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

  In a twelfth aspect, the winning probability of each object included in the first type object group and / or the winning probability of each object included in the first type object group set by the probability setting means is calculated. The computer system according to any one of the first to eleventh inventions, further comprising means for changing in exchange for consumption of a given value based on a change instruction operation by the user.

  According to the twelfth invention, the winning probability of the first type object group related to the first lottery or the winning probability of the second type object group related to the second lottery set based on the parameter setting of the first grant object is determined by the user. You can collect and change the price.

  The thirteenth aspect of the invention includes a cancel instruction operation for canceling the execution by the second lottery process after the lottery by the first lottery means and before the lottery by the second lottery means. When a cancellation is accepted by the cancel accepting means (for example, the cancel processing unit 255 in FIGS. 5 and 10) and the cancel accepting means, the execution of the lottery by the second lottery means is canceled and the series of lottery processes is performed. Is a computer system according to any one of the first to twelfth inventions, further comprising cancellation means (for example, the cancellation processing unit 255 in FIGS. 5 and 10).

  According to the thirteenth invention, after the first lottery, the execution of the second lottery can be canceled in accordance with a cancel instruction operation by the user, and a series of lottery processes can be ended.

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

  According to the fourteenth aspect, it is possible to determine the value of the second lottery, for example, by lowering it according to the lottery result of the first lottery, or to set it higher.

  The fifteenth aspect of the present invention is a game system (for example, the game system 1000 of FIG. 1) configured such that a user terminal and the computer system of any of the first to fourteenth aspects of the invention can be connected to each other.

  According to the fifteenth aspect, it is possible to realize a game system that exhibits the same effects as those of the first aspect.

  According to a sixteenth aspect of the present invention, a user terminal performs a process of performing a lottery operation on an object that can be used in a game from an object group based on a user's lottery execution instruction operation and assigning the object selected by the lottery operation to the user. (For example, a game program 504 in FIG. 10) to be executed by the user terminal 1500A in FIG. 10, and the objects include first type and second type objects having different roles, Based on the first lottery means for drawing the first grant object to be given to the user by lottery from the first kind object group, the second kind object group based on the parameter setting set for the first grant object Probability setting means for variably setting the winning probability of each object included in the object, based on the winning probability The user terminal is caused to function as a second lottery means for lottering a second grant object to be given to the user by performing a lottery from the second type object group, and the first lottery means, the probability setting means, and the second This is a program for executing two lottery means as a series of lottery processes.

  According to the sixteenth aspect, it is possible to realize a program that exhibits the same effect as the first aspect.

The figure which shows the example of whole structure of a game system. The figure which shows the apparatus structural example of a user terminal. The figure which shows the rough execution procedure of a continuous gacha. The figure explaining the principle of the 2nd lottery probability setting processing. The block diagram which shows the function structural example of a server system. The figure which shows the data structural example of user management data. The figure which shows the data structural example of game object data. The block diagram which shows the function structural example of a user terminal. The flowchart for demonstrating the flow of a process in a server system. The figure which shows the function structural example of the user terminal in the modification 1. The figure which shows the modification of game object data.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. It should be noted that the present invention is not limited to the embodiments described below, and modes to which the present invention can be applied are not limited to the following embodiments. In the description of the drawings, the same parts are denoted by the same reference numerals.

  FIG. 1 is a diagram illustrating an overall configuration example of a game system 1000 according to the present embodiment. As shown in FIG. 1, the game system 1000 includes a server system 1100 that is a computer system, and a user terminal 1500 possessed by a user who is a game player 2 of the present embodiment, and these are connected via a communication line 9. It is configured to be connected to each other so that data communication is possible.

  The communication line 9 means a communication path capable of data communication. That is, the communication line 9 includes a communication network such as a telephone communication network, a cable network, and the Internet in addition to a dedicated line (dedicated cable) for direct connection and a LAN (Local Area Network) using Ethernet (registered trademark). This means that the communication method may be 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 such as VRAM, RAM, and ROM, various IC memories 1152 and communication devices 1153 are mounted is incorporated. Part or all of the control board 1150 may be realized by an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a system on a chip (SoC).

  This server system 1100 provides a user management function relating to user registration and the data necessary for playing a game on the user terminal 1500 by the CPU 1151 and the like performing arithmetic processing based on predetermined programs and data. A game management function for managing game execution control on the user terminal 1500 is realized. That is, the game in the present embodiment is realized as a kind of client-server online game. The player 2 accesses the server system 1100 with his / her user terminal 1500 and logs in with the issued account to enjoy the game of the present embodiment.

  The server system 1100 also performs a purchase procedure (billing process) for virtual currency equivalent points (hereinafter simply referred to as “points”) in cooperation with an external electronic payment server operated by an electronic payment company or the like. In the billing process, the electronic settlement server performs a process of clearing the point purchase amount with the credit card or prepaid card of the player 2 in response to the inquiry from the server system 1100. Then, the server system 1100 gives the player 2 the purchase amount equivalent to the payment made by the electronic settlement server.

  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 mounted and connected to each other via an internal bus so that data communication is possible. . Alternatively, the server system 1100 may be configured to function as a whole by performing data communication with a plurality of independent servers installed at remote locations via the communication line 9.

  The user terminal 1500 is a computer system having a man-machine interface function, and can connect to the communication line 9 via a mobile phone base station, a wireless communication base station, or the like, and perform data communication with the server system 1100. This user terminal 1500 is, for example, in the form of a smartphone, a mobile phone, a portable game device, a stationary home game device, a controller for a stationary home game device, a business game device, a personal computer, a tablet computer, a wearable computer, or the like. Can take.

  FIG. 2 is a diagram illustrating a device configuration example of a smartphone that is an example of the user terminal 1500. As shown in FIG. 2, the user terminal 1500 includes a direction input key 1502, a home key 1504, a touch panel 1506 that functions as an image display device / contact position input device, a built-in battery 1509, a speaker 1510, and a microphone 1512. And a control board 1550 and a memory card reader 1542 capable of reading and writing data from and 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 is used for wireless communication with various microprocessors such as CPU 1551, GPU, DSP, various IC memories 1552 such as VRAM, RAM, ROM, and mobile phone base stations and wireless LAN base stations connected to the communication line 9. The wireless communication module 1553, the interface circuit 1557, and the like are mounted. The control board 1550 includes a circuit that receives signals from the direction input key 1502 and the home key 1504, a driver circuit for the touch panel 1506, an output amplifier circuit that outputs an audio signal 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 the above signal and a signal input / output circuit for the memory card reader 1542 are mounted. Each element mounted on the control board 1550 is electrically connected via a bus circuit or the like so that data can be read and written and signals can be transmitted and received. Note that a part or all of the control board 1550 may be configured by ASIC, FPGA, or SoC.

  In the control board 1550, the IC memory 1552 stores a game client program, various setting data necessary for executing the game client program, and the like. A game client program or the like is downloaded from the server system 1100 at an appropriate timing. A configuration may be adopted in which data is read from a storage medium such as a memory card 1540 obtained separately. Then, the CPU 1551 or the like executes a game client program to execute arithmetic processing, and controls each part of the user terminal 1500 in accordance with operation inputs to the touch panel 1506, the direction input key 1502, and the home key 1504, thereby allowing the game of the player 2 Enable play.

[Overview]
In the game of this embodiment, the player 2 can perform a lottery (gacha) of objects that can be used in the game in exchange for a predetermined amount of point consumption. Examples of objects that can be given by gacha include, for example, a character that can be selected as a player character, various items such as weapons, armor, bullets, and medicines that can be equipped or used by the player character, vehicles of the player character, and summoned beasts. , Additional abilities that can be added to the player character such as magic and skills, release of new game stages and maps, and a lottery right. In the present embodiment, a plurality of objects that can be classified into three categories of “character”, “weapon”, and “item” having different roles are prepared in advance as a lottery target. The consideration consumed by gacha is not limited to points, but may be real world currency (money).

  More specifically, in this embodiment, two “single gacha” and “continuous gacha” are prepared as gacha menus. In the single shot gacha, for example, the category selection operation of the player 2 is accepted, and one of the categories of characters, weapons, and items (types of objects having different roles) is selected, and one lottery is performed for the selected category. Processing is performed to give the selected object to the player 2.

  On the other hand, when the consecutive gacha is selected, the lottery process is performed a plurality of times, and the selected objects are collectively given to the player 2. In the present embodiment, lottery is performed sequentially from the object group of each category for each category of character, weapon, and item.

  Here, rarity is defined for each object prepared as a lottery target. The rarity is, for example, “super rare”, “rare”, and “common” in order from the highest. Of course, the level of rarity may be four or more, or may be two. In addition, for each of the rare and super rare objects, a winning probability reference value corresponding to the rarity is determined in advance. The higher the rarity, the lower the winning probability reference value, making it harder to win. For example, super rare is 0.1%, rare is 0.7%, and so on.

  Then, in the case of a single shot gacha, the lottery process is performed using the winning probability reference value of the rare object as it is as the winning probability. As a result of the lottery, when the rare object is not won, one of the lottery objects is selected from the non-rare objects having the common rarity. On the other hand, when the continuous gacha is executed, the winning probability is variably set based on the winning probability reference value of the rare object and used for the lottery process.

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

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

  Thereafter, three objects of the character O11 won by the character lottery, the weapon O13 won by the weapon lottery, and the item O15 won by the item lottery are given to the player 2 (S5), and the execution of the continuous gacha is finished.

[principle]
In consecutive gacha, the winning probability reference value of the second lottery object (rare object) in the second order is adjusted based on the parameter setting of the object (first grant object) won in the first lottery in which the execution order is first By doing so, the process (2nd lottery probability setting process) which variably sets the winning probability related to the second lottery is performed. That is, in this embodiment, the second lottery probability setting process is performed before the execution of the weapon lottery, the winning probability related to the weapon lottery is variably set, and the second lottery probability setting process is performed before the execution of the item lottery. The winning probability related to the item lottery is variably set. In the character lottery executed first, the lottery process is performed using the winning probability reference value as it is as the winning probability, as in the case of the single shot gacha.

1. FIG. 4 is a diagram for explaining the principle of the second lottery probability setting process, focusing on character lottery and weapon lottery. In the character lottery that is the first lottery in this case, a lottery is performed from the character group that is the first type object group. Here, character types such as “type A”, “type B”, and “type C” are set in advance for each lottery target character as parameter settings. Therefore, as shown in FIG. 4, the characters can be grouped into groups G211, G213, G215,... For each character type. This group corresponds to the first grouping based on the combination compatibility.

  In the second lottery probability setting process after the character lottery, first, the combination compatibility is determined from the character type of the first grant object. For example, when the type B character O11 is elected, based on this type B, a weapon having a combination compatibility with the character O11 in the weapon group that is the second type object group is determined. In this embodiment, a weapon for which a parameter setting that satisfies a predetermined corresponding condition with Type B is set as a weapon having a matching combination.

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

  The appropriate condition related to the character is, for example, “the same character type as the first grant object is set as the parameter setting”. Therefore, in the example of FIGS. 3 and 4, the weapons belonging to the groups G221 and G223 are determined to be weapons that match in combination with the character O11.

  After that, the reference value adjustment processing is performed with the weapons of the groups G221 and G223 having the matching compatibility as target objects, and the winning probabilities are set primarily. More specifically, among objects belonging to the groups G221 and G223, a rare object having a winning probability reference value is set as a target object. The reference value adjustment process is defined as a process of adding a predetermined value to the winning probability reference value of the target object (for example, +0.3) and increasing the winning probability, for example. A process of multiplying the winning probability reference value of the target object by a predetermined value (for example, x1.2) may be performed. By the processing here, in the example of FIGS. 3 and 4, it is possible to easily win a weapon that can be equipped with the character O11 and whose rarity is super rare or rare in the second lottery. When a rare object is not won, for example, an object to be given may be selected from non-rare objects with matching compatibility (such as weapons with common rarities belonging to groups G221 and G223).

  It should be noted that the weapon group may include “common” weapons that are not limited, as well as those that are limited in the types of characters that can be equipped. The common weapon may be a target for setting the winning probability in the second lottery probability setting process.

  In addition, instead of increasing the winning probability of an object that matches the combination compatibility, the winning probability of an object that does not match the combination compatibility (weapons belonging to the group G225 in the examples of FIGS. 3 and 4) may be lowered. In this case, the reference value adjustment process is performed using a rare object that does not match the combination compatibility as a target object. Then, the reference value adjustment process is defined as a process for lowering the winning probability of the target object by subtracting a predetermined value from the winning probability reference value.

  Alternatively, the winning probability of an object that does not match the combination compatibility may be set to zero. For example, this can be realized by excluding objects whose combination compatibility does not match from the lottery objects of the second lottery. In this case, if the character O11 is won in the first lottery, the weapon won in the second lottery is always a weapon that the character O11 can equip. That is, in the second lottery, weapons that cannot be equipped with the character O11 won in the first lottery can be prevented from winning.

2. Rareness In the second lottery probability setting process of the present embodiment, after first setting the winning probability based on the combination compatibility as described above, if the first grant object is a rare object, the rarity is the rareness of the first grant object. The second lottery target object that satisfies a predetermined corresponding condition is selected. Then, the winning probability is secondarily set for the selected object.

  The corresponding condition related to the rarity is, for example, “the same rarity as the first grant object is set as a parameter setting”.

  Specifically, in the examples of FIGS. 3 and 4, the rarity of the character O11 won in the first lottery is super rare, and therefore, out of the weapons of the groups G221 and G223 that are determined to match the combination compatibility in the primary setting, Secondary winning probabilities are set for the same super rare weapons O13, O21, etc. The secondary setting is performed, for example, by increasing the winning probability by adding a predetermined value (for example, +0.1) to the winning probability of the weapons O13, O21 and the like that are primarily set. According to this, an object having the same rarity as that won in the first lottery can be easily won in the second lottery.

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

  If the second lottery probability setting process is performed for the weapon lottery as described above, the weapon to be given to the user is determined by performing a lottery from the weapon group that is the second type object group based on the set winning probability. To do. Thereafter, the second lottery probability setting process is performed in the same manner prior to the next item lottery, and the winning probability related to the item lottery is set.

  Specifically, the item group includes, for example, bullets to be filled in weapons, repair items for characters and weapons, various items such as fuels thereof, and exclusive items with limited usable characters and weapons. . In each item, a character type and a weapon type that can use the item are set in advance as parameter settings.

  Note that the item group may include common items that are not limited in addition to those that have limited character types and weapon types that can be used. And it is good also considering the common item as the object of the setting of the winning probability in the second lottery probability setting process.

  Further, in the second lottery probability setting process related to the item lottery, the character lottery may be set as the first lottery in the same manner as the weapon lottery, and the winning character (character O11 in FIGS. 3 and 4) may be set as the first grant object. Then, the immediately preceding weapon lottery may be regarded as the first lottery, and the parameter setting may be used with the winning weapon (weapon O13 in FIGS. 3 and 4) as the first grant object. Alternatively, both the character O11 and the weapon O13 may be set as the first granted object, and the winning probability relating to the item group may be set using the parameter setting as an OR condition.

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

  Now, in the continuous gacha of this embodiment, each lottery process of character lottery, weapon lottery, and item lottery is performed as a series of lottery processes. In this embodiment, the lottery of the next order is performed for each lottery. A cancel instruction operation to be canceled is accepted. When the player 2 performs a cancel instruction operation and selects to stop the repeated gacha halfway, the series of lottery processes is terminated.

  In the case of cancellation in the middle, billing processing is performed by reducing the point consumption amount by a predetermined amount. For example, if the point consumption of one continuous gacha (character lottery / weapon lottery / item lottery set gacha) is 300 points, it will be reduced to 210 points in the cancellation before the weapon lottery and the cancellation before the item lottery In this case, the amount is reduced to 240 points.

  Further, in accepting the cancel instruction operation, information on the previous lottery result (that is, the first grant object) and the winning probability related to the second lottery that is set based on the lottery result (that is, the result of the second lottery probability setting process) are obtained. Information is displayed and presented to the player 2.

  First, display of information related to the lottery result (display of information related to the lottery result in the middle before all the consecutive gacha ends) is performed by displaying information indicating the hint of the first granted 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, for example, the player 2 can select the first granted object won from the silhouette and proceed to the next lottery, or conversely, cancel the operation by performing a cancel instruction operation. In addition, as a determination material at that time, the winning probability related to the next lottery can be referred to. Therefore, the next lottery can be executed while enhancing the expectation of the player 2 on the lottery result between lotteries. Not only the information indicating the hint but also the information indicating the first grant object such as the character name and the weapon name of the first grant object may be displayed.

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

  The operation input unit 100s is for inputting various operations for system management, maintenance, and the like, and can be realized by, for example, a keyboard, a mouse, a 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 by, for example, a processor such as an arithmetic circuit such as a CPU, GPU, ASIC, or FPGA, or an electronic component such as an IC memory. The server processing unit 200s can communicate with each unit including the operation input unit 100s and the server storage unit 500s. Performs data input / output control. Then, various arithmetic processes are performed based on a predetermined program and data, an operation input signal from the operation input unit 100s, data received from the user terminal 1500, and the like, and the operation of the server system 1100 is comprehensively controlled. In FIG. 1, the control board 1150 and its CPU 1151 correspond to this.

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

  The user management unit 210 manages processing related to user registration and data of each registered user (player 2) associated with the account. For example, it is possible to execute processing for assigning a unique account to a registered user, registration information management processing for registering and managing personal information for each account, use history management processing for managing login and logout histories, and the like. Of course, other data management processes associated with other user accounts can be included as appropriate.

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

  The game management unit 230 performs various processes related to game execution management. Since the game of this embodiment is a client-server online game, the game management unit 230 performs control to provide data necessary for game play while communicating with the user terminal 1500. The game management unit 230 includes a game progress control unit 231, a first lottery probability setting unit 233, a first lottery processing unit 235, a second lottery probability setting unit 240, a lottery result hint display control unit 251, 2 The lottery probability display control unit 253, the cancel processing unit 255, and the second lottery processing unit 257 are included.

  The game progress control unit 231 performs communication with the user terminal 1500 as needed, controls the progress of game play in the user terminal 1500, and performs processing related to reflection of the play result.

  When the lottery execution instruction operation is accepted (when the continuous gacha menu is selected), the first lottery probability setting unit 233 performs the first lottery process and performs the first lottery object. The winning probability reference value (in this embodiment, the winning probability reference value of the rare object) determined for the group object is set as the winning probability related to the first lottery.

  The first lottery processing unit 235 performs a lottery from the first type object group based on the winning probability set by the first lottery probability setting unit 233 and determines a first grant object to be given to the player 2.

  The second lottery probability setting unit 240 performs the second lottery probability setting process as described above, and the winning probability reference value (in the present embodiment) determined for the object of the second type object group that is the lottery target in the second lottery. The winning probability related to the second lottery is set by adjusting the winning probability reference value of the rare object. In the present embodiment, the primary setting using the combination compatibility and the secondary setting using the rarity are sequentially performed. The second lottery probability setting unit 240 includes a combination compatibility determination unit 241. The combination compatibility determination unit 241 determines the combination compatibility with the first grant object for the objects of the second type object group according to appropriate conditions.

  The lottery result hint display control unit 251 causes the image display unit 390 to display the hint of the object won in the last lottery after the first lottery and before the execution of the second lottery.

  The second lottery probability display control unit 253 displays, on the user terminal 1500, an image of the winning probability related to the second lottery set by the second lottery probability setting unit 240 after the first lottery and before the execution of the second lottery. Displayed on the part 390.

  The cancel processing unit 255 receives a cancel instruction operation for the second lottery after the first lottery and before the execution of the second lottery. Then, in response to the cancel instruction operation of the player 2, the execution of the second lottery is canceled, and a series of lottery processes are ended.

  The second lottery processing unit 257 performs lottery from the second object group based on the winning probability set by the second lottery probability setting unit 240 and determines a second grant object to be given to the player 2.

  The time measurement unit 280s measures 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 and the like of the server system 1100 and outputs the image to the image display unit 390s.

  The sound generation unit 292s is realized by execution of an IC or software that generates and decodes sound data, and generates or decodes sound data such as operation sound and BGM related to system management of the server system 1100 and moving image distribution. An audio signal related to system management is 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 realizes 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 wireless communication device, a modem, a TA (terminal adapter), a wired communication cable jack, a control circuit, or the like. In FIG. 1, the communication device 1153 corresponds to this.

  The server storage unit 500s stores a program for operating the server system 1100 and realizing various functions of the server system 1100, data used during the execution of the program, or the like every time processing is performed. Stored temporarily. For example, it can be realized by an IC memory such as a RAM or a ROM, a magnetic disk such as a hard disk, an optical disk such as a CD-ROM or a DVD. In FIG. 1, the IC memory 1152 and the storage 1140 correspond to this.

  The server storage unit 500s stores a server program 501, a distribution game client program 503, user management data 510, game initial setting data 520, play data 540, and a current date and time 800. In addition, necessary data such as a timer, a counter, and various flags are appropriately stored.

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

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

  The user management data 510 stores information related to the registered user who is the player 2. FIG. 6 is a diagram illustrating a data configuration example of one user management data 510. As shown in FIG. 6, the user management data 510 includes the account 511 of the corresponding player 2, the settlement medium book data 512, the possessed object list 513, the player level 514, the play date / time, play time, play count, and the like. And a play history 515.

  The settlement medium book data 512 includes information on the balance of the electronic settlement medium (points equivalent to virtual currency in the present embodiment) linked to the corresponding player 2, such as the history of point purchase date / time and the number of purchases (billing amount), points The consumption date / time, the history of the number of consumption, etc. are stored.

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

  Returning to FIG. 5, the game initial setting data 520 stores various initial setting data for executing the game of the present embodiment. The game initial setting data 520 stores game object data 530.

  The game object data 530 is prepared for each object such as a character, a weapon, and an item that can be given to the player 2 in the course of the game. FIG. 7 is a diagram illustrating a data configuration example of one game object data 530. As shown in FIG. 7, the game object data 530 includes an object name 531 of the corresponding object, a category (character / weapon / item) 532 in which the object is classified, a parameter setting 533 of the object, and a winning probability. A reference value 536 is stored. In addition, for example, if it is a character, model data, motion data used for motion control, initial values of various ability values such as attack power and defense power, and the like are stored.

  Parameter setting 533 includes character type 534 and rarity 535. In the character type 534, if the corresponding object is a character, the character type is set. If the object is a weapon, the character type of a character that can be equipped with it is set. The type is set.

  The winning probability reference value 536 is set, for example, when the corresponding object is a rare object, and a value corresponding to the rareness is determined in advance.

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

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

  The operation input unit 100 is for the 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, or 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 by a processor that is an arithmetic circuit such as a CPU, GPU, ASIC, or FPGA, or an electronic component such as an IC memory. The terminal processing unit 200 can be connected to each unit including the operation input unit 100 and the terminal storage unit 500. Performs data input / output control. Then, various arithmetic processes are performed based on a predetermined program and data, an operation input signal from the operation input unit 100, data received from the server system 1100, and the like, and the operation of the user terminal 1500 is comprehensively controlled. In FIG. 2, the control board 1550 and its CPU 1551 correspond to this. The terminal processing unit 200 according to the present 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 game play of the player 2. For example, the user terminal calculation unit 270 includes an operation signal transmission control unit 271 and a game screen display control unit 273.

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

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

  The image generation unit 290 cooperates with the game screen display control unit 273 to display one game screen in one frame time (for example, 1/60 seconds) 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 unit 390. For example, it can be realized by a processor such as a GPU or a digital signal processor (DSP), a program such as a video signal IC or a video codec, an IC memory for a drawing frame such as a frame buffer, or the like.

  The sound generation unit 292 is realized by, for example, a digital signal processor (DSP), a processor such as a speech synthesis IC, an audio codec for reproducing an audio file, and the like, and sound signals of game sound effects, BGM, and various operation sounds. Is 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 realizes data exchange with the external device.

  The image display unit 390 displays various screens such as a game screen 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 and BGM 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, TA, a wired communication cable jack, a control circuit, or the like. In FIG. 2, the wireless communication module 1553 corresponds to this.

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

  The terminal storage unit 500 stores a game client program 502 and a current date and time 801. The game client program 502 is a program for causing the terminal processing unit 200 to function as the user terminal calculation unit 270. The game client program 502 may be a dedicated client program according to a technical technique for realizing an online game, or may be configured by a web browser program, a plug-in for realizing interactive image display, or the like. In the present embodiment, the distribution game client program 503 (see FIG. 5) provided from the server system 1100 is a copy.

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

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

  Subsequently, the first lottery processing unit 235 performs the first lottery (character lottery) (step S15). Here, the object (character) to be given to the player 2 is determined by performing a lottery from the character group that is the first type object group based on the winning probability set in step S13.

  When the first lottery is finished, the second lottery probability setting unit 240 performs a second lottery probability setting process (steps S17 to S23). First, the combination compatibility determination unit 241 determines combination compatibility (step S17). In the present embodiment, based on the character type of the first grant object (for example, the character won in the character lottery), an object whose combination compatibility with the first grant object is matched in the second type object group. For the determination, an appropriate condition related to the character type is used.

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

  Subsequently, the second lottery probability setting unit 240 selects an object satisfying the corresponding condition related to the rarity from the second type object group based on the rarity of the first granted object (step S21), and determines the winning probability. Secondary setting is performed (step S23). For example, the winning probability is increased for an object having the same rarity as the first grant object among the objects whose combination compatibility with the first grant object matches.

  When the second lottery probability setting process is completed, the process proceeds to step S25. In step S25, the lottery result hint display control unit 251 performs display control of the hint of the object won in the previous lottery. Further, the second lottery probability display control unit 253 performs display control of the winning probability related to the second lottery (the lottery to be performed next) set in steps S19 and S23 (step S27). And the cancellation process part 255 receives the cancellation instruction | indication operation of a 2nd lottery. When the cancel processing unit 255 detects a cancel instruction operation on the user terminal 1500 (step S29: YES), the cancel processing unit 255 cancels the execution of the second lottery and ends the series of lottery processes (step S31). . Then, the object won in the series of lottery processes before cancellation is given to the player 2 (step S33). Thereafter, the billing processing unit 220 performs billing processing by deducting the amount of cancellation from a predetermined amount of points determined as the consideration for the repeated gacha (step S35), and ends this processing.

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

  Thereafter, if there is a lottery to be performed next (step S39: YES), the process returns to step S17, and the above-described processing is repeated with the next lottery as the second lottery. When the last lottery is executed in step S37 (step S39: NO), the objects won in the series of lottery processes (three objects of the character, weapon, and item in this embodiment) 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 performs billing processing for a predetermined amount of points determined as the price for the repeated gacha (step S43), and ends this processing.

  As described above, according to the present embodiment, a series of lottery processes for sequentially executing lotteries of different categories can be performed. And between each lottery, based on the parameter setting of the 1st grant object elected by the 1st lottery, the winning probability of the object in the 1st lottery can be changed. Specifically, in the second type object group, it is possible to change to increase the winning probability of an object whose combination compatibility matches the first grant object or an object of the same rarity. Therefore, it is possible to give relevance to the lottery processing that is continuously performed, and to increase the euphoria of the player 2.

  In addition, the form which can apply this invention is not limited to above-described embodiment, A component can be added, abbreviate | omitted, and changed suitably.

[Modification 1]
For example, in the above embodiment, the game management processing entity has been described as the server system 1100. However, the user terminal may be a processing entity, or the game management processing may be distributed between the server system and the user terminal. It can also be configured to execute. For example, when the user terminal is a processing entity, a functional configuration example of the user terminal 1500A is as shown in FIG. In this case, the user terminal 1500A is a computer system. In FIG. 10, the same components as those in the above embodiment are denoted by the same reference numerals.

  As shown in FIG. 10, in the user terminal 1500A of this modification, the terminal processing unit 200 has a game management unit 230, and the game screen display control unit 273 is omitted. That is, the user terminal 1500A of the present modification does not acquire data for displaying a game screen image from the server system 1100, but the game management unit 230 of the user terminal 1500A executes processing related to game management to progress the game. To generate an 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. User management data relating to the player 2 of the user terminal 1500A 510, play data 540, and game initial setting data 520 are stored. The processing flow of the user terminal 1500A of the present modification is basically the same as the flowchart shown in FIG. 9, and may be read as executing the steps by the game management unit 230 of the user terminal 1500A.

[Modification 2]
Moreover, in the said embodiment, based on the parameter setting of the 1st grant object won by the 1st lottery performed previously, among the objects of the lottery object in the 2nd lottery of the back order, it is the same as the object with which matching compatibility is matched. Increased the chance of winning a rarity object. On the other hand, the winning probability of these objects may be reduced. In this case, the reference value adjustment process may be determined as a process for reducing the winning probability, such as by subtracting a predetermined value from the winning probability reference value of the target object.

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

[Modification 3]
Moreover, although the continuous gacha performed in order of character lottery, weapon lottery, and item lottery was demonstrated as a series of lottery processes in the said embodiment, the category of each lottery is not limited to three types illustrated. There may be two types or four or more types, and the order in which the lottery is performed is not particularly limited. Further, the order may be determined based on the selection operation of the player 2. In this case, when the lottery execution instruction operation is detected, the game management unit 230 accepts a lottery order selection operation as the lottery type selection unit and determines the order. At this time, when the player 2 performs the weapon lottery first and then selects the order in which the character lottery is performed, the second lottery probability setting process after the weapon lottery is based on the parameter setting of the weapon selected in the weapon lottery. Thus, the winning probability related to the character lottery is set. Of course, the object to be gacha is not limited to the characters, weapons, and items of the above embodiment.

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

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

  Further, the player 2 may select a lottery target group (character type; selection type). In this case, for example, a group selection operation is accepted together with a lottery execution instruction operation. The group selection operation can be accepted in exchange for consumption of a given consideration (point).

[Modification 5]
Alternatively, the player 2 may receive a change instruction operation in exchange for consumption of a given value, and the winning probability set in the second lottery probability setting process may be changed based on the adjustment value corresponding to the value. The consideration can 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 multiplication factor, an addition value, or a subtraction value multiplied by the winning probability. And when change instruction operation is received before execution of the 2nd lottery, using the said adjustment value, the winning probability set about the object whose combination compatibility matches with the 1st grant object and the object of the same rarity, for example, Increase to change.

  Note that instead of increasing the winning probability for an object or the like that matches the combination compatibility, the winning probability may be reduced for an object that does not match the combination compatibility or an object of a different rarity. Moreover, the consumption of consideration is not limited to the consumption of points, but may be the consumption of items. For example, it can be realized by preparing an item that increases the winning probability for an object having a matching combination or an object having the same rarity.

[Modification 6]
In the above embodiment, for the first character lottery, the lottery process is performed using the winning probability reference value determined for the character as it is. On the other hand, it is also possible to accept the change instruction operation of the player 2 in exchange for consumption of a given value and change the winning probability (winning probability reference value) related to the first lottery. The change instruction operation can be accepted together with the lottery execution instruction operation. The consideration can 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 multiplication factor, an addition value, or a subtraction value multiplied by the winning probability. When the change instruction operation is accepted, the winning probability reference value of the first type object group is changed using the adjustment value.

  In this change instruction operation, a group (character type) whose winning probability is to be changed may be drawn in the same manner as in the fourth modification, or the player 2 may be able to select. Then, the winning probability may be changed by, for example, increasing the winning probability for the selected type character or decreasing the winning probability for a character type character other than the selected type. Furthermore, the consumption of consideration is not limited to the consumption of points, but may be the 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, an item for increasing the winning probability for a rare object with a specific rarity (for example, a super rare), or the like.

[Modification 7]
In the second lottery probability setting process of the above embodiment, the winning probability related to the second lottery is set based on the two parameter settings of the character type and the rarity. On the other hand, the winning probability relating to the second lottery may be set variably using only the rarity of the first grant object. According to this, when a super rare object is won in the first lottery, it becomes easy to win a super rare object in the second lottery, or conversely, it is difficult to win.

[Modification 8]
In the above embodiment, the character type and the rarity are exemplified as the parameter setting. However, it is also possible to narrow down objects that increase or decrease the winning probability using other parameter settings. For example, in a series of lottery processes in which the first lottery is performed as a character lottery and the second lottery is used as a weapon lottery as in the above-described embodiment, a weapon of a specific weapon type (e.g. It is also possible to increase the winning probability of a weapon for range attacks. Which weapon type win probability is increased can be realized, for example, by accepting the selection operation of the player 2 in exchange for the consumption of the consideration.

[Modification 9]
Moreover, although the said embodiment demonstrated the continuous gacha which performs lottery multiple times in exchange for point amount of predetermined amount, you may perform a charge process by considering the value of each lottery as a separate price. At that time, the consideration of the subsequent lottery may be changed according to the result of the lottery performed earlier. In this case, the game management unit 230 variably sets the second lottery point consumption amount according to the first grant object as the second lottery consideration determination unit. For example, the higher the rarity of the first grant object, the higher the point consumption amount, and the lower the lower the point consumption amount, the lower the point consumption amount. According to this, the point consumption amount required for the second lottery can be reduced based on the lottery result of the first lottery.

[Modification 10]
In addition, the winning probability reference value is not limited to the value for each exemplified super rare and rare rareness, and may be configured to be set individually for each object. In addition, a configuration is possible in which a winning probability reference value is set for each non-rare object having a common rarity. However, in that case, the winning probability set in the second lottery probability setting process is appropriately corrected so that the total value of the winning probabilities of all the objects to be selected is 100.

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

  Specifically, as shown in FIG. 11, in the game object data 530, an affiliation table 539 to which the object belongs is associated and stored. The table includes a plurality of types of tables such as a table for each character type and a table for each rarity, and one object belongs to one or more tables. And based on the parameter setting set to the 1st grant object elected in the 1st lottery of Step S15 of Drawing 9, a table is chosen from a plurality of kinds of tables, and the selected table is made into a belonging table. The winning probability is set so that only the existing object wins in the second lottery. For example, in step S17 of FIG. 9, a table corresponding to a character type that matches the combination with the first granted object is selected, the winning probability of an object that does not belong to the table is zero, and the winning probability of an object that belongs to the table Let be a value greater than zero. Further, in step S21 of FIG. 9, a table corresponding to the rarity satisfying the corresponding condition with the first grant object is selected, the winning probability of the object not belonging to the table is zero, and the winning of the object belonging to the table is selected. Probability is greater than zero.

DESCRIPTION OF SYMBOLS 1000 ... Game system 1100 ... Server system 100s ... Operation input part 200s ... Server processing part 210 ... User management part 220 ... Charge processing part 230 ... Game management part 233 ... 1st lottery probability setting part 235 ... 1st lottery processing part 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 setting data 530 ... game Object data 533 Parameter setting 540 ... Play data 1500, 1500A ... User terminal 100 ... Operation input unit 200 ... Terminal processing unit 270 ... User terminal calculation unit 271 ... Operation signal transmission control unit 273 ... Game screen display control unit 290 ... Image generation unit 292 ... Sound Generation unit 294 ... communication control unit 390 ... image display unit 392 ... sound output unit 394 ... communication unit 500 ... terminal storage unit 502 ... game client program 504 ... game program 9 ... communication line 2 ... player

Claims (16)

Based on a lottery execution instruction operation of a user operating a user terminal, a computer system that draws an object that can be used in a game from an object group and gives the object selected by the lottery to the user,
The objects include a first type and a second type of objects having different roles,
A first lottery means for drawing a first grant object to be given to the user by performing a lottery from the first type object group;
Probability setting means for variably setting the winning probability of each object included in the second type object group based on the parameter setting set in the first grant object;
A second lottery means for drawing a second grant object to be given to the user by performing a lottery from the second type object group based on the winning probability;
And the first lottery means, the probability setting means, and the second lottery means function as a series of lottery processes. Each of the second type objects is associated with one of a plurality of types of tables,
The probability setting means selects a table from the plurality of types of tables based on a parameter setting set for the first grant object, and the second type object associated with the selected table The winning probability is set so that only the winning in the lottery of the second lottery means,
The computer system according to claim 1. The probability setting means variably selects a winning probability of an object in which a parameter setting satisfying a corresponding condition based on a parameter setting set in the first grant object is included among the objects included in the second type object group. Set,
The computer system according to claim 1 or 2. The probability setting means has means for increasing or decreasing the winning probability of an object for which a parameter setting that satisfies the corresponding condition is made,
The computer system according to claim 3. The parameter setting includes at least a setting indicating rarity.
The computer system according to claim 3 or 4. The parameter setting includes at least a setting related to the combination compatibility of the first type and the second type object.
The computer system as described in any one of Claims 3-5. The parameter setting includes at least a setting relating to the combination compatibility of the first type and the second type object,
The objects included in the second type object group are grouped based on the combination compatibility,
The probability setting means, by selecting the combination compatibility group that satisfies the corresponding condition among the grouping, 1) makes the winning probability of an object belonging to a group other than the selected group zero, or 2) The winning probability of an object belonging to a group other than the selected group is made lower than the winning probability of an object belonging to the selected group.
The computer system according to claim 3. The parameter setting includes at least a setting relating to the combination compatibility of the first type and the second type object,
The objects included in the first type object group are first grouped based on the combination compatibility,
The objects included in the second type object group are second grouped based on the combination compatibility,
The first lottery means
First group lottery means for selecting a group from each group based on the first grouping;
First grant object lottery means for lottering the first grant object from objects belonging to the group lottery by the first group lottery means;
Have
The probability setting means selects a group having the combination compatibility that satisfies the corresponding condition among the groups based on the second grouping, so that 1) a winning probability of an object belonging to a group other than the selected group Or 2) lowering the winning probability of objects belonging to groups other than the selected group lower than the winning probability of objects belonging to the selected group,
The computer system according to claim 3. The object includes a plurality of types of objects having different roles,
Among the plurality of types, a lottery type selection means for determining a type to be the first type and a type to be the second type based on the selection operation of the user,
The computer system according to claim 1, further comprising: Means for controlling the user terminal to display information indicating the first granted object or information indicating the hint of the first granted object before executing the lottery by the second lottery means;
The computer system according to any one of claims 1 to 9, further comprising: Means for controlling the user terminal to display information indicating the setting of the winning probability by the probability setting means before executing the lottery by the second lottery means;
The computer system according to claim 1, further comprising: The winning probability of each object included in the first type object group and / or the winning probability of each object included in the first type object group set by the probability setting means is used for a change instruction operation by the user. Based on the means to change in exchange for the consumption of a given consideration,
The computer system according to claim 1, further comprising: Cancel accepting means for accepting a cancel instruction operation for canceling the execution by the second lottery process after executing the lottery by the first lottery means and before executing the lottery by the second lottery means;
Canceling means for canceling the execution of the lottery by the second lottery means and ending the series of lottery processes when the cancellation accepting means is made;
The computer system according to claim 1, further comprising: The consideration of the lottery by the first lottery means and the consideration of the lottery by the second lottery means are separate.
Second lottery consideration determining means for variably determining the consideration of the lottery by the second lottery means based on the lottery result by the first lottery means;
The computer system according to claim 1, further comprising:   The game system comprised so that communication connection was possible for a user terminal and the computer system as described in any one of Claims 1-14. A program for causing a user terminal to execute a process of performing a lottery operation on objects that can be used in a game from among a group of objects based on a user's lottery execution instruction operation and assigning the object selected by the lottery to the user. And
The objects include a first type and a second type of objects having different roles,
A first lottery means for lottering a first grant object to be given to the user by performing a lottery from the first type object group;
Probability setting means for variably setting the winning probability of each object included in the second type object group based on the parameter setting set for the first grant object;
A second lottery means for lottering a second grant object to be given to the user by performing a lottery from the second type object group based on the winning probability;
A program that causes the user terminal to function as the first lottery means, the probability setting means, and the second lottery means as a series of lottery processes.

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