To provide a game device, enhancing the strategic nature of a game, which is played by a plurality of players while they mutually bring out data, to secure the continuation of the game.

In this game device, one game area is generated using a storage medium storing area partial data constituting part of the game area disposed in a virtual game space. The game device includes: an area data reading means for reading the area partial data from the storage medium; and a generating means for generating one game area based upon the area partial data read from one or more storage media by an area data reading means.