Information processing apparatus

Abstract

To enhance amusement in acquiring a game element acquirable from the finite number of game elements.SOLUTION: A provision request reception part receives a provision request for a game element from a user. A game element storage part 23 stores a plurality of game elements. A game element provision part provides a user with one or more game elements from among the plurality of game elements on the basis of the provision request. A provision result storage part stores information for identifying provided game elements for each user. The game element storage part further stores a set of game elements including at least a portion of the plurality of game elements as an element set, and stores a unique set including one or more element sets. The game element provision part provides one or more game elements from among game elements that are included in one or more element sets selected from the unique set and do not provide a number determined for the selected element sets, of the game elements.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to an information processing apparatus.

Background Art

[0002] There is a so-called social game provided to a user's mobile terminal such as a smartphone and capable of communicating with other users through an Internet line. In such a social game, a lottery function is known that randomly provides game elements such as characters and items in response to an acquisition request accompanied by user charging.

[0003] For example, Patent Document 1 discloses a game providing server that assigns a game medium storage deck for storing a selected game medium (corresponding to a game element in the present application) to each user and deletes the selected game medium from the game medium storage deck, so that the necessary cost until the user obtains a desired game medium can be accurately predicted.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] On the other hand, in order to enhance the interest of the game, there is a need to enable different game elements to be acquired for each user according to the progress of the game or a specific campaign. In such a case, in the game providing server of Patent Document 1, since the lottery probability of the game elements in the game medium storage deck is uniform, there is room for improvement in that the interest in acquiring game elements is lacking.

[0006] The present invention has been made in view of such circumstances, and an object of the present invention is to provide an information processing apparatus that improves the interest in obtaining game elements that can be obtained from a finite number of game elements.

Means for Solving the Problems

[0007] According to the present invention, there is provided an information processing apparatus for controlling a game, comprising a provision request reception unit, a game element storage unit, a game element provision unit, and a provision result storage unit, wherein the provision request reception unit receives a game element provision request from a user, the game element storage unit stores a plurality of game elements, the game element provision unit provides one or more game elements from among the plurality of game elements to the user based on the provision request, the provision result storage unit stores information for specifying the provided game elements for each user, the game element storage unit further stores a set of game elements including at least a part of the plurality of game elements as an element set, and stores a unique set including one or more of the element sets, and the game element provision unit provides the one or more game elements from among the game elements included in one or more element sets selected from the unique set and not provided with a determined number of game elements for the selected element set. With such a configuration, the interest in obtaining game elements is improved.

[0008] By adopting such a configuration, the interest in obtaining game elements is improved.

[0009] Hereinafter, various embodiments of the present invention will be exemplified. The embodiments shown below can be combined with each other. Also, each feature independently constitutes an invention.

[0010] Preferably, the information processing apparatus further includes a unique set setting unit capable of setting addition or deletion of the element set with respect to the unique set. Preferably, the game element storage unit further stores a lottery probability for the set of elements included in the specific set, and the game element providing unit selects the set of elements from among the sets of elements included in the specific set by lottery based on the lottery probability. Preferably, the lottery probability is set according to the ratio of the number of game elements included in each of the sets of elements included in the specific set. Preferably, the lottery probability is determined when setting the set of elements included in the specific set and is not changed with the acquisition of the game elements by the user. Preferably, the lottery probability is configured to be changeable by the specific set setting unit.

Brief Description of the Drawings

[0011]

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Embodiments for Carrying Out the Invention

[0012] <1. First Embodiment> (1.1. Outline of the Information Processing Apparatus 1) Referring to FIG. 1, the outline of the information processing apparatus 1 according to the first embodiment will be described. As shown in FIG. 1 The information processing apparatus 1 is realized by one or more servers and is configured to be communicable with the user terminal 3 by being connected to a WAN (Wide Area Network) 2 such as the Internet.

[0013] The user terminal 3 is realized by a mobile terminal such as a smartphone owned by a game user (hereinafter simply referred to as a user). The information processing apparatus 1 receives a request for providing game elements (hereinafter simply referred to as a provision request) from the user via the user terminal 3. Here, the game elements are a general term for electronic data used by the user for the progress of the game, and specifically include characters, items, cards, avatars, and the like. In the following embodiments, an example of providing a character as a game element will be described.

[0014] When the information processing apparatus 1 receives a request for providing game elements from a user, it selects one or more game elements from the available game elements and provides them to the user. The information processing apparatus 1 is configured not to provide the game elements available to the user in duplicate more than a predetermined number. As a result, the user can predict the necessary cost until obtaining the desired game elements. Hereinafter, each configuration will be described in detail.

[0015] (1.2. Hardware Configuration of Information Processing Apparatus 1) Referring to FIG. 2, the hardware configuration of the information processing apparatus 1 will be described.

[0016] FIG. 2 is a block diagram showing the hardware configuration of the information processing apparatus 1 according to the present embodiment. The information processing apparatus 1 includes a control unit 11 that controls the operation of the entire information processing apparatus 1, and a storage unit 12 that functions as a work area when various programs are executed by the control unit 11 and stores various programs and various data in advance.

[0017] Furthermore, the information processing apparatus 1 is connected to the user terminal 3 via a communication line and includes a communication unit 13 that transmits and receives various data. The information processing apparatus 1 may also include an operation input unit 14 composed of a keyboard, a mouse, etc. that receives inputs of various operations, and a monitor 15 such as a liquid crystal display device that displays various images.

[0018] The control unit 11, the storage unit 12, the communication unit 13, the operation input unit 14, and the monitor 15 are electrically connected to each other via a system bus 16. Therefore, the control unit 11 can access the storage unit 12, grasp the operation state of the operation input unit 14, display an image on the monitor 15, and transmit and receive various data to and from other information processing apparatuses such as the user terminal 3 via the communication unit 13.

[0019] (1.3. Functional Configuration of Information Processing Apparatus 1) Referring to FIG. 3, the functional configuration of the information processing apparatus 1 will be described.

[0020] As shown in FIG. 3, the information processing apparatus 1 includes a provision request reception unit 21, a game element provision unit 22, a game element storage unit 23, and a provision result storage unit 24. The provision request reception unit 21 and the game element provision unit 22 are realized as functions of the control unit 11. The game element storage unit 23 and the provision result storage unit 24 are realized as functions of the storage unit 12.

[0021] The provision request reception unit 21 receives a provision request for a game element from the user, and communicates the provision request to the game element provision unit 22.

[0022] Based on the communication from the provision request reception unit 21, the game element provision unit 22 refers to the game element storage unit 23 and provides one or more game elements to the user. Further, the game element provision unit 22 provides information for specifying the game elements provided to the user to the provision result storage unit 24 and registers it. The flow of providing game elements by the game element provision unit 22 will be described in detail later.

[0023] The game element storage unit 23 stores information for specifying game elements that can be provided to the user. The specific table configuration of the game element storage unit 23 will be described in detail later.

[0024] The provision result storage unit 24 stores information for specifying the game elements provided to the user. The specific table configuration of the provision result storage unit 24 will be described in detail later.

[0025] The above-described functional configuration may be realized by various functions being executed by a CPU (Central Processing Unit) implemented as the control unit 11 by executing a program, or may be realized by hardware.

[0026] When realized by executing a program, the program may be stored in the storage unit 12 or may be stored in a non-transitory computer-readable recording medium. Further, a program stored in an external storage device may be read out and realized by so-called cloud computing. When realized by hardware, it may be realized by various circuits such as ASIC, SOC, FPGA, or DRP.

[0027] (1.4. Table Configuration of Game Element Storage Unit 23) Referring to FIGS. 4 and 5, an example of the table configuration of the game element storage unit 23 will be described. The game element storage unit 23 includes a character table T1, a user table T2, an element set table T3, an element set setting table T4, a unique set correspondence table T5, and a unique set setting table T6.

[0028] The character table T1 is a table that stores information about characters provided as game elements, and includes a character ID column and a name column. The character ID column holds a character ID for uniquely identifying a character. The name column holds the name of each character.

[0029] The user table T2 is a table that stores information about users who use the game, and includes a user ID column and a surname column. The user ID column holds a user ID for uniquely identifying a user. The surname column holds the surname of each user.

[0030] The element set table T3 is a table that stores element sets, and includes an element set ID column and a name column. An element set is a set of game elements such as characters, and one element set includes one or more game elements. The element set ID column holds an element set ID for uniquely identifying an element set. The name column holds the name of each element set.

[0031] The element set setting table T4 is a table for setting the game elements included in each element set. The element set setting table T4 has a No column and a character ID column. The No column holds a serial number for uniquely identifying the records in the table. The character ID column holds the character IDs of the characters included in the element set corresponding to the table.

[0032] In this embodiment, as shown in FIG. 4B, element set setting tables T4-1, T4-2,..., T4-9 are set for each of the element sets B01, B02,..., B09, and the characters included in each element set are defined in each table. Note that, as shown in record D1, in this embodiment, it is allowed for the same character to be included in one element set in duplicate.

[0033] The unique set correspondence table T5 is a table that defines the correspondence between users and unique sets, and has a user ID column and a unique set ID column. Here, a unique set is a set of element sets, and one or more element sets are included in one unique set. The unique set ID column holds a unique set ID for uniquely identifying the unique set. In this embodiment, since one unique set is set for each user, the unique set correspondence table T5 is defined so as to associate each user with a unique set in a one-to-one manner.

[0034] The unique set setting table T6 is a table that defines the element sets included in each unique set. The unique set setting table T6 has a No column, a unique set ID, and an element set ID. By having such a table configuration, the element sets included in each unique set and the game elements included in each element set are defined.

[0035] FIG. 5 is an image diagram showing the relationship between game elements (characters), element sets, unique sets, and users defined by each of the tables T1 to T6 shown in FIGS. 4A to 4C. As shown in FIG. 5, one unique set is set for each user. Each unique set includes one or more element sets. And each element set includes one or more game elements (in this embodiment, characters). The game element providing unit 22 refers to the game element storage unit 23 set in this way and provides game elements.

[0036] (1.5. Table Configuration of the Provision Result Storage Unit 24) Referring to FIG. 6, an example of the table configuration of the provision result storage unit 24 will be described. The provision result storage unit 24 includes a provision result table T7.

[0037] The provision result table T7 is a table that stores, for each user, information for identifying the game elements provided to the user. The provision result table T7 includes a No column for uniquely identifying records in the table, a user ID column, an element set ID column, and a character ID column.

[0038] The user ID column holds the user ID of the user who made the game element provision request. The element set ID column holds the element set ID of the element set that includes the characters provided to the user for the provision request. The character ID column holds the character ID of the characters provided to the user for the provision request. In the provision result table T7, each time a game element is provided to a user, information on the provided character and the element set that includes the character is registered.

[0039] (1.6. Flow of Provision of Game Elements) Referring to FIG. 7, the flow of provision of game elements will be described. In step S110, the provision request reception unit 21 receives a game element provision request from the user.

[0040] In step S120, the game element providing unit 22 receives the communication from the providing request receiving unit 21 and confirms the providing request for game elements. In step S130, the game element providing unit 22 refers to the game element storage unit 23 and acquires the game elements to be provided to the user.

[0041] When acquiring game elements, the game element providing unit 22 first selects an element set included in the specific set set for the user who made the providing request from the specific set. In the present embodiment, the lottery probability of the element set is set according to the number of characters included in the element set. The game element providing unit 22 selects an element set from among the element sets included in the specific set by lottery based on the lottery probability.

[0042] Hereinafter, a specific description will be given with reference to the example shown in FIG. 8. As shown in FIG. 8, corresponding to user ∪01 The specific set K01 includes two element sets, B01 and B02. The element set B01 includes 50 characters, and the element set B02 includes 100 characters. In the present embodiment, the lottery probability of the element set is set according to the ratio of the number of game elements included in each of the element sets included in the specific set. Therefore, the lottery probabilities of the element sets B01 and B02 are set at a ratio of 50:100. With such a configuration, the larger the number of game elements included in the element set, the higher the possibility of being selected, so the interest in acquiring game elements is improved.

[0043] Here, the lottery probability is determined by the number of game elements in the element set when setting the element set included in the specific set, and it is preferably not changed as the user acquires game elements. By doing so, it is possible to prevent a situation where the lottery probability of the element set decreases and it becomes difficult to be selected when a large number of game elements are provided from within a specific element set.

[0044] After the set of elements is determined, a lottery is conducted for the characters within the determined set of elements. In the present embodiment, the lottery for the characters within the set of elements is performed at a ratio (i.e., 1 / (total number of characters within the set of elements)) distributed by the total number of characters within the set of elements.

[0045] In this way, when the game elements are acquired in step S130, in step S140, the game element providing unit 22 makes an inquiry about the acquisition result. Specifically, the game element providing unit 22 refers to the provided result storage unit 24 and determines whether the game elements acquired in step S130 have already been provided.

[0046] In step S150, when the game element providing unit 22 determines that the acquired game elements have already been provided, it returns to step S130 again to repeat the process. On the other hand, when it is determined that the acquired game elements have not already been provided, the game element providing unit 22 performs the process of step S160.

[0047] As described above, in the present embodiment, it is allowed for the same character to be included repeatedly in one set of elements (refer to record D1 in the set of element setting table T4-1 in FIG. 4B). For such game elements, it is determined whether the number of duplicates within the set of elements (the "predetermined number" in the claims) has been provided.

[0048] In step S160, the game element providing unit 22 provides the acquired game elements to the user. In step S170, the game element providing unit 22 registers information identifying the game elements provided to the user in the provided result storage unit 24.

[0049] As described above, the information processing apparatus 1 according to the present embodiment includes a provision request reception unit 21, a game element provision unit 22, a game element storage unit 23, and a provision result storage unit 24. The provision request reception unit 21 receives a game element provision request from a user. The game element provision unit 22 provides the user with the game elements stored in the game element storage unit 23 based on the provision request. The provision result storage unit 24 stores, for each user, information for identifying the provided game elements.

[0050] The game element storage unit 23 stores a set of game elements as an element set, and stores, for each user, a set of element sets as a unique set. When providing game elements, the game element provision unit 22 selects an element set from the unique set set for the user who is the requester of the provision request, and provides one or more game elements from among the game elements included in the selected element set.

[0051] With such a configuration, it becomes possible to set an element set, which is a set of characters, according to the user. And when providing game elements, first an element set is selected, and then a game element is selected, so the interest in obtaining game elements is improved.

[0052] <2. Second Embodiment> With reference to FIGS. 9 and 10, the information processing apparatus 1 according to the second embodiment will be described. In the following, the description will focus on the differences from the first embodiment.

[0053] As shown in FIG. 9, the information processing apparatus 1 according to the second embodiment is different from the first embodiment in that it includes a unique set setting unit 25 that can change the setting of the unique set in the game element storage unit 23.

[0054] The unique set setting unit 25 is configured to be able to add or delete element sets to / from the unique set set for each user by adding or deleting records to / from the unique set setting table T6 (see FIG. 4C) stored in the game element storage unit 23. Further, the unique set setting unit 25 is configured to be able to change the drawing probability of the element sets within the unique set.

[0055] Hereinafter, a specific explanation will be given using the examples shown in FIGS. 10 and 11. FIGS. 10 and 11 show an example of adding the element set B03 to the unique set K01 set for the user U01. In FIG. 11, a strikethrough is drawn for the characters that have already been provided to the user.

[0056] As shown in FIG. 10, the unique set setting unit 25 adds the record indicated by D2 to the unique set setting table T6 stored in the game element storage unit 23. As a result, as shown in FIG. 11, the element set B03 is added to the unique set K01.

[0057] Here, the drawing probability of the element sets included in the unique set K01 after the element set B03 is added is determined by the ratio of the number of game elements in the element sets B01, B02, and B03. That is, the number of characters that have already been provided to the user is not considered when determining the drawing probability. By adopting such a configuration, it is possible to prevent the problem that it becomes difficult to obtain the characters that have not been provided in the element set due to the decrease in the drawing probability of the element set in which many characters have been provided to the user.

[0058] By adopting such a configuration, it becomes easy to add or delete element sets for each user according to the progress of the user's game or according to a specific campaign or the like, so that the interest in obtaining game elements is further improved.

[0059] <3. Third Embodiment> Referring to FIGS. 12 and 13, the information processing apparatus 1 according to the third embodiment will be described. In the information processing apparatus 1 according to the third embodiment, the game element providing unit 22 is different from the first embodiment in that it calculates in advance the order in which game elements are provided.

[0060] The game element providing unit 22 in the third embodiment refers to the game element storage unit 23 and calculates in advance the order in which game elements are provided for each user. The game element providing unit 22 registers the calculated order of providing game elements in the providing result storage unit 24. When the providing request receiving unit 21 receives a providing request from the user, the game element providing unit 22 refers to the providing result storage unit 24 and provides game elements in the order registered in the providing result storage unit 24.

[0061] As shown in FIG. 12, the providing result table T7 in the third embodiment further includes a provided column. The provided column holds a flag for identifying whether the game element specified in the record has already been provided.

[0062] Referring to FIG. 13, the flow of providing game elements will be described. In step S301, the game element providing unit 22 refers to the game element storage unit 23 and calculates the order in which game elements are provided for each user. Specifically, for the element sets within the unique set set for each user, a lottery is performed based on the lottery probability for each element set, and one or more element sets are selected. Then, by performing a lottery on the game elements included in the selected element set, the order in which the game elements that can be provided to the user are provided is determined. In step S302, the game element providing unit 22 registers the calculated order of providing in the providing result storage unit 24.

[0063] In step S310, the providing request receiving unit 21 receives a providing request for game elements from the user. In step S320, the game element providing unit 22 receives a communication from the providing request receiving unit 21 and confirms the providing request for game elements.

[0064] In step S330, the game element providing unit 22 refers to the provision result table T7 in the provision result storage unit 24 and acquires game elements to be provided to the user. Specifically, for the user who has made the provision request, game elements are acquired in the order of the records in the provision result table T7 where the provided column has a value of "0 (uncompleted)" and the value of the No column is small. In step S340, the game element providing unit 22 provides the acquired game elements to the user.

[0065] In step S350, the game element providing unit 22 updates the provided column in the provision result table T7 to "1 (completed)" for the record identifying the provided game elements.

[0066] As described above, in the information processing apparatus 1 of the present embodiment, the order of providing game elements to be provided to the user is calculated in advance. By adopting such a configuration, it is not necessary to perform acquisition processing of game elements and determination processing as to whether they have been provided for each acquisition request from the user, and the provision processing can be performed quickly. In addition, it is possible to manage which game elements have already been provided for each user and which game elements will be provided in the future.

[0067] <4. Fourth Embodiment> Referring to FIGS. 14 and 15, the information processing apparatus 1 according to the fourth embodiment will be described. The information processing apparatus 1 according to the fourth embodiment is different from the above-described embodiment in that the order of providing game elements is calculated in advance for each set of elements.

[0068] When the provision request receiving unit 21 receives a provision request from the user, the game element providing unit 22 refers to the game element storage unit 23 and performs a selection (lottery) for the element set for the unique set corresponding to the user. For the element set determined by the lottery, the game element providing unit 22 refers to the provision result storage unit 24 and provides game elements in the order registered in the provision result storage unit 24.

[0069] As shown in FIG. 14, the provision result table T7 in the fourth embodiment is prepared for each set of elements included in the unique set. The game element provision unit 22 refers to the provision result table T7 corresponding to the set of elements determined by lottery, and determines the game elements to be provided to the user.

[0070] Referring to FIG. 15, the flow of providing game elements will be described. In step S410, the provision request reception unit 21 receives a game element provision request from the user. In step S420, the game element provision unit 22 receives the communication from the provision request reception unit 21 and confirms the game element provision request.

[0071] In step S430, the game element provision unit 22 selects a set of elements included in the unique set for the unique set set for the user who made the provision request. That is, the game element provision unit 22 selects a set of elements from among the sets of elements included in the unique set by lottery based on the lottery probability set for each unique set.

[0072] In step S440, the game element provision unit 22 refers to the provision result storage unit 24 and acquires the game elements to be provided to the user from the provision result table T7 corresponding to the selected set of elements. Specifically, for the provision result table T7 corresponding to the selected set of elements, the game elements are acquired in the order of the records in which the provided column is "0 (uncompleted)" and the value of the No column is small. In step S450, the game element provision unit 22 provides the acquired game elements to the user.

[0073] In step S460, the game element provision unit 22 updates the provided column of the provision result table T7 to "1 (completed)" for the record identifying the provided game elements.

[0074] In this way, in the information processing apparatus 1 of the present embodiment, the order in which game elements are provided is calculated in advance for each element set. By adopting such a configuration, when adding an element set to a specific set, it is not necessary to change the order of providing game elements that have already been determined in the provided result table T7, and the addition of the specific set can be performed by simple processing.

[0075] <5. Other Embodiments> As described above, the embodiments and their modifications in the present invention have been explained. However, the application of the present disclosure is not limited to the above content. For example, in the above embodiment, the user terminal 3 is realized as a mobile terminal such as a smartphone, but it is not limited to this example. For example, the user terminal 3 may be realized by installing software on a home PC or the like.

[0076] Also, it should be noted that the table configuration in the above embodiment is only an example of an implementation method. For example, the provided result table T7 stores the provided game elements, but it is not limited to this example, and it may be a table configuration that stores game elements not provided to the user.

[0077] Also, in the above embodiment, it is assumed that one specific set is set for each user, but it is not limited to this example. That is, in the specific set correspondence table T5, a table configuration in which a plurality of specific sets are associated with one user may be adopted.

[0078] Also, in the above-described fourth embodiment, the provided result table T7 stores the order of provision for each element set, but the present invention is not limited to this example. For example, for game elements within an element set, the order of provision of game elements within the element set may be calculated by generating a pseudo-random number with the user ID as the initial value when providing game elements. In this case, since the user ID is unique and unchanging for each user, the calculated order of provision is unique for each user, and the same order of provision is calculated for the same user each time. Therefore, the provided result table T7 only needs to store up to which game element in the calculated order of provision has been provided to each user.

[0079] Furthermore, the present invention can also be realized as a program that causes a server to function to realize the above-described information processing apparatus.

[0080] Furthermore, the present invention can also be realized as a computer-readable non-transitory recording medium that stores the above-described program.

[0081] Although various embodiments of the present invention have been described, these are presented as examples and are not intended to limit the scope of the invention. The novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and its equivalent scope.

Description of Reference Numerals

[0082] 1: Information processing apparatus 2: WAN 3: User terminal 11: Control unit 12: Storage unit 13: Communication unit 14: Operation input unit 15: Monitor 16: System bus 21: Provision request reception unit 22: Game element providing unit 23: Game element storage unit 24: Provision result storage unit 25: Unique set setting unit

Claims

1. comprising a processor, when the processor receives a provision request from a user, the processor provides a game medium to the user from among a first set, a second set, and a third set, each containing different game media included in a unique set, associated with the user, when the processor receives a next provision request from the user after receiving the provision request and after the association between the third set and the unique set of each user has been released, the processor provides a game medium to the user by lottery from among the first set and the second set, the probability that the first set or the second set is selected by the lottery is determined by the number of game media in the first set and the second set when setting the first set, the second set, and the third set, and is not changed with the acquisition of game media by the user, an information processing apparatus.

2. when the processor receives a provision request from a user, the processor provides a game medium to the user from among a first set, a second set, and a third set, each containing different game media included in a unique set, associated with the user, when the processor receives a next provision request from the user after receiving the provision request and after the association between the third set and the unique set of each user has been released, the processor provides a game medium to the user by lottery from among the first set and the second set, the probability that the first set or the second set is selected by the lottery is determined by the number of game media in the first set and the second set when setting the first set, the second set, and the third set, and is not changed with the acquisition of game media by the user, an information processing method.

3. causing the processor to provide a game medium to the user from among a first set, a second set, and a third set, each containing different game media included in a unique set, associated with the user, when the processor receives a provision request from the user, causing the processor to provide a game medium to the user by lottery from among the first set and the second set when the processor receives a next provision request from the user after receiving the provision request and after the association between the third set and the unique set of each user has been released, ​ A program that executes a process in which the probability of selecting the first set or the second set by the lottery is determined by the number of game media in the first set and the second set when setting the first set, the second set, and the third set, and is not changed with the acquisition of game media by the user.

4. Comprising a terminal and a server, The server, When receiving a provision request from the user's terminal, provides game media to the user from among a first set, a second set, and a third set, each including different game media included in a unique set associated with the user, After receiving the provision request, when receiving a next provision request from the user's terminal after the association between the third set of each user and the unique set is released, provides game media to the user by lottery from among the first set and the second set, A system in which the probability of selecting the first set or the second set by the lottery is determined by the number of game media in the first set and the second set when setting the first set, the second set, and the third set, and is not changed with the acquisition of game media by the user.

Images