Patent ID: 8529340

Claim:
A game system including four or more game apparatuses, each of which comprises a game progress control unit for performing game progress control, comprising a jackpot drawing apparatus including: a drawing unit for carrying out a jackpot drawing for determining a winner who wins a jackpot award from players who play by using the four or more game apparatuses; a storage unit for storing payout amount data indicating an amount including a payout target amount to be paid out to the winning player when the drawing unit determines winning of the jackpot award; a payout processing unit for performing a payout process for paying out to the winning player a payout target of at least a part of an amount that is indicated by the payout amount data obtained by reading out the payout amount data from the storage unit; and a payout amount increasing unit for cumulatively increasing the amount indicated by the payout amount data stored in the storage unit when a predetermined payout amount increasing condition is satisfied, wherein the drawing unit of the jackpot drawing apparatus carries out the jackpot drawing by carrying out a group drawing, which results in a substantially unpredictable result, for determining whether one winning group is selected or neither group is selected according to a predetermined group drawing condition, from previously determined two or more groups, each of which is made up of two or more game apparatuses, and by carrying out, when the winning group is selected by the group drawing, a winner drawing for determining whether the player who wins the jackpot award is selected or neither player is selected, from the players who play by using the two or more game apparatuses belonging to the winning group.