To provide a game system which enables the execution of the development of games with higher varieties using communication circuits.

Cellular phones l are brought closer to readers 5 installed at respective game parlors 4 to make them read out the telephone numbers of the individual cellular phones 1. An information managing unit 6 receiving the data of the telephone numbers transmits game data corresponding to the respective readers 5 to the cellular phones 1 corresponding to the telephone numbers received through a communication circuit N. Thus, a different development of games can be executed depending on which readers 5 are used by players to make them read out the telephone numbers of their cellular phones 1.