Game system

A game system comprising a plurality of game machines and a game server, the game machines and the game server capable of communicating data with each other via a network, among the plurality of game machines, a game being executed in which characters associated with players operating the game machines appear as the players, and progress of the game being controlled by the game server,

• wherein the game machine comprises:
• a game machine information storage device for storing self-machine information including self-machine environment information indicative of environment information on environment of a place where the game machine itself is mounted;
• and
• a participation notifying device for, when a player operating the self-machine participates in the game, transmitting to the game server, a participation notification including information on the player operating the self-machine and the self-machine environment information, and
• the game server comprises:
• a character information storage device for storing various environment information and information on environment characters prepared according to each kind of environment information;
• a virtual player setting device for selecting an environment character associated with the environment information indicated by the self-machine environment information included in the received participation notification with reference to the character information storage device, and setting the selected environment character as a character of a virtual player;
• and
• a virtual operation determining device for making the environment character set as the character of the virtual player appear in the game, and determining operations of the environment character during the game.