Patent ID: 7874922

Claim:
A game system having a game machine in which a predetermined game is performed, the game machine having a game machine main body and a replaceable game part provided in the game machine main body to be used in the game machine, the game part having a consumable item which is replaceable and consumed by use in the game, wherein the game part comprises: a criterion storage device storing a criterion wearing level indicating a wearing level at which the consumable item should be replaced; a measurement device measuring a parameter indicating a used amount of the game part in the game; an accumulation device accumulating a value of the parameter measured by the measurement device; a wearing level specifying device specifying the wearing level of the consumable item of the game part based on an accumulation value obtained by the accumulation device; a replacement determination device checking the wearing level specified by the wearing level specifying device to the criterion wearing level of the criterion storage device to determine whether or not replacement time comes to replace the consumable item and a replacement information output device outputting replacement information on replacement of the consumable item to the game machine main body, when the replacement determination device determines that i-t replacement time comes to replace the consumable item, and the game machine main body comprising: a replacement information obtaining device obtaining the replacement information outputted from the game part; and a replacement processing device performing a process concerning a replacement of the consumable item of the game part based on the replacement information obtained by the replacement information obtaining device, the game part having output the replacement information.