Abstract: To enable to execute various patterns of battle strategies in a turn-based game by considering which character is advantageous to use depending on the situation of the game, the present invention comprises: a character selecting unit 101 that selects one character from a plurality of characters during a turn of a player based on an operational input of the player; a character operating unit 102 that causes the selected character to execute a command based on an operational input of the player; a command point setting unit 103 that sets command points that can be used by the player to operate the plurality of characters at the beginning of a turn of the player; a command point managing unit 104 that subtracts required command points every time any of the characters is operated during the turn; and a turn controlling unit 105 that ends a turn of the player and switches to a turn of the opponent when the command points fall below the points required for the operations of the characters.