Provided are an information processing device, a game program, and an information processing method to raise a player′s excitement. The information processing device according to the present invention comprises: a behavior content deciding and processing unit for deciding behavior contents of characters for a game, wherein the behavior content deciding and processing unit makes a player perform an action to select any one item, which an opponent does not select, among items in a common item group and an action to relate the selected item with the player′s character used for the game and makes the opponent perform an action to select any one item, which the player does not select, among the items in the common item group and an action to relate the selected item with the opponent′s character used for the game; a behavior order deciding and processing unit for deciding behavior order of the characters on the basis of behavior speed parameters previously set to the characters; and a behavior content executing and processing unit for making the characters behave based on the characters′ behavior contents coping with the items related to the characters according to the decided behavior orders of the characters after all items are selected from the common item group.
INFORMATION PROCESSING DEVICE GAME PROGRAM AND INFORMATION PROCESSING METHOD