By setting the player's recording medium in the game device, the
continuity of the previous game and current game of the player is
maintained, and the game parameter of a non-player character is set with
a used recording medium. The game device (30) has a unit (S24) for
conducting a first game in which a plurality of characters participate
including a player character and a non-player character upon using a
recording medium (20) having recorded thereon the number of playable
games; a unit (S26) for recording the game parameter of the player
character renewed with the first game on the recording medium and
deducting the number of playable games; a unit (S53) for using the
recording medium to set the game parameter of the non-player character in
the second game when there is a remainder in the number of playable games
in the recording medium; and a unit (S57) for using the recording medium
to set the game parameter of the non-player character in the second game
when there is no remainder in the number of playable games in the
recording medium.