In this game system, a plurality of game devices are connected to a game parent station over a communication network, and an online game application may be executed on the game devices by means of the game parent station. In this game system, the game devices are provided with a personal information processing means that can exchange personal information with other players while the online game application is executed among the game devices. Therefore, personal information in the form of a business card may be exchanged with an opponent by means of the personal information processing means either after a game has ended or when a game begins.