Abstract: In the case where a combination instruction to combine a lower-ranked first game card in which a specific ability parameter is specified with a higher-ranked second game card is received, a sever executes determination processing of determining whether the first game card meets a given combination condition and, in the case where it is determined that the first game card meets the combination condition, the sever executes, as combination processing, specific ability addition processing of adding the specific ability parameter specified in the first game card to the second game card.

Abstract: A game system includes a processor including hardware. The processor is configured to implement: a game process for a user to play a game; a purchase process for the user to purchase a virtual currency; a management process that manages purchase information of the virtual currency of the user, in association with user information; and a shop process that sets a virtual shop in which the user is able to obtain an item of the game by spending the virtual currency purchased. The processor implements the shop process including a process that makes a special shop different from a regular shop appear as the shop, based on the purchase information of the virtual currency of the user.

Abstract: In the case where a combination instruction to combine a lower-ranked first game card in which a specific ability parameter is specified with a higher-ranked second game card is received, a sever executes determination processing of determining whether the first game card meets a given combination condition and, in the case where it is determined that the first game card meets the combination condition, the sever executes, as combination processing, specific ability addition processing of adding the specific ability parameter specified in the first game card to the second game card.

Abstract: A game system includes a processor including hardware. The processor is configured to implement: a game process for a user to play a game; a purchase process for the user to purchase a virtual currency; a management process that manages purchase information of the virtual currency of the user, in association with user information; and a shop process that sets a virtual shop in which the user is able to obtain an item of the game by spending the virtual currency purchased. The processor implements the shop process including a process that makes a special shop different from a regular shop appear as the shop, based on the purchase information of the virtual currency of the user.

Abstract: A given content list stores information about a content that has been given to a player. When a prize content selected by a lottery has been registered in the given content list, it is determined that the prize content satisfies a duplication condition, and an alternative content is selected from an alternative content list, and given to the player instead of the prize content selected by the lottery. An alternative content notification screen that notifies the player that the alternative content has been given to the player is displayed.