Provided is a game device (10) including: a load processing unit which loads save data having a user identifier from a storage device; an application execution unit which executes a game program by using the loaded save data; a game condition achievement judgment unit which judges whether a preset game play condition is achieved in accordance with a game advance state; an item identifier acquisition unit (420) which acquires an item identifier correlated to a game play condition achieved; an item acquisition process unit which has a function to generate item acquisition information by using the acquired item identifier; and a function control unit (454) which limits the function of the item acquisition process unit in accordance with the user identifier added to the save data.
