Patent ID: 7976391

Claim:
A game system having a center server and a plurality of game machines capable of transmitting and receiving data to and from the center server through a communication network, said each game machine comprising a game machine main body and a replacement part being replaceable, wherein the replacement part comprises a part information recording device recording part identification information which can be obtained by the game machine, the part identification information being uniquely given to each replacement part in the game system, the game machine main body comprises: a game machine storage device storing game machine identification information uniquely given to each of the game machines in the game system; a part information obtaining device obtaining the part identification information recorded in the part information recording device; and a server transmission device transmitting to the center server, the part identification information obtained by the part information obtaining device together with the game machine identification information stored in the game machine storage device, and the center server comprises: a server storage device storing the part identification information and the game machine identification information transmitted from the game machine in association with each other.