Abstract: A player can select a chest serving as a material and a chest serving as a target from possessed chests, and consume the chest serving as the material to perform power-up fusion for powering up the chest serving as the target. An activation condition of the chest after the power-up fusion is determined based on activation conditions of both the chest serving as the material and the chest serving as the target. A content object (content of the chest) provided when the activation condition of the chest after the fusion is satisfied is determined based on a content object associated with both the chest serving as the material and the chest serving as the target.

Abstract: A player can use a character and a chest, in possessed game objects, to build a deck, and play a battle game with the character and the chest, used to build the deck, deployed on a game field as units of a gameplay. The chest used in the gameplay has an activation condition (timer period of a time limit lock) and acquisition control (determination of the content of the chest and provision of the content to the player) of the chest 5 changed in accordance with the type of the chest deployed and an action such as an attack by a character in the game field.

Abstract: A player can use a character and a chest, in possessed game objects, to build a deck, and play a battle game with the character and the chest, used to build the deck, deployed on a game field as units of a gameplay. The chest used in the gameplay has an activation condition (timer period of a time limit lock) and acquisition control (determination of the content of the chest and provision of the content to the player) of the chest 5 changed in accordance with the type of the chest deployed and an action such as an attack by a character in the game field.

Abstract: A player can select a chest serving as a material and a chest serving as a target from possessed chests, and consume the chest serving as the material to perform power-up fusion for powering up the chest serving as the target. An activation condition of the chest after the power-up fusion is determined based on activation conditions of both the chest serving as the material and the chest serving as the target. A content object (content of the chest) provided when the activation condition of the chest after the fusion is satisfied is determined based on a content object associated with both the chest serving as the material and the chest serving as the target.