Patent ID: 8221232

Claim:
A game system comprising: a server and a plurality of game machines connected to the server, wherein each of the game machines is associated with one of a plurality of groups, and a game using at least one game element is played among the game machines, wherein each of the game machines includes: a game machine storing device for storing group information representing the associated group and game element information representing the game element; a game control device for controlling the game using the game element; an evaluating device for obtaining an evaluation of a content of play of the game based on an evaluation criterion determined in advance of the game; and a game machine data transmitting device for transmitting game machine data including the group information, the game element information, and the obtained evaluation to the server; and wherein the server includes: a game machine data receiving device for receiving the game machine data from each of the plural game machines; a registered data storing device for storing the game element information, registered group information representing a group holding a game element represented by the game element information, and a registered evaluation which is the evaluation obtained by any one of the game machines of the group represented by the registered group information as being related to each other; and a registration updating device for replacing the registered evaluation and the registered group information with the evaluation and the group information, respectively, included in the game machine data associated with one of the game machines where a play of the game was made when (i) the registration evaluation related to the game element information stored in the registered data storing device and (ii) the evaluation included in the game machine data associated with the one of the game machines where the play of the game was made satisfy a predetermined condition.