Game system, and jackpot drawing apparatus and game apparatus constituting the same

A game system comprising a plurality of game apparatuses and a drawing machine for jackpot game,

• wherein each of the plurality of game apparatuses comprises;
• a game progress control unit for controlling game progress;
• a bet object receiving unit for receiving bet objects;
• and
• a payout processing unit which performs a payout process for paying out a predetermined amount of payout objects to a player based on a result of the game progress controlled by the game progress control unit on a condition that the bet object receiving unit receives the bet objects:
• wherein the drawing machine for jackpot game comprises;
• a drawing unit which performs a jackpot drawing for determining a winning player of a jackpot award among players who play the plurality of game apparatuses;
• a payout amount storage unit for storing payout amount data including an amount of payout objects to be paid out to the winning player when the drawing unit determines winning of the jackpot award;
• a jackpot payout processing unit which performs a jackpot payout process for reading out the payout amount data from the payout amount storage unit upon determination of the winning of the jackpot award by the drawing unit, and paying out to the winning player at least a part of payout objects corresponding to an amount indicated by the read-out payout amount data;
• and
• a payout amount increasing unit for increasing cumulatively a payout amount indicated by the payout amount data stored in the payout amount storage unit according to a pool amount of each game apparatus obtained by multiplying a pool ratio of each game apparatus by an amount of bet objects received by each bet object receiving unit of the plurality of game apparatuses when a predetermined payout amount increasing condition is satisfied,
• the drawing unit of the drawing machine for jackpot game performs a group drawing for selecting one winning group among a plurality of predetermined groups including at least one game apparatus according to a predetermined group drawing condition, and where the winning group is selected by the group drawing, a winner determining process for determining a winner among players who play game apparatuses belonging to the winning group, thereby performing the jackpot drawing:
• the drawing machine for jackpot game further comprises;
• a group-specific jackpot balance amount storage unit which separately stores, for every group, group-specific jackpot balance amount data indicating a group-specific jackpot balance amount obtained by deducting from a group-specific accumulated pool amount, which is obtained by summing up, for every group, pool amounts in game apparatuses belonging to each group after a predetermined point, a total amount of payout objects paid out when a player playing a game apparatus belonging to the group have won the jackpot award after the predetermined point;
• and
• a group-specific maximum loss amount storage unit which stores group-specific maximum loss amount data indicating individual group-specific maximum loss amounts separately set for every group:
• and
• the drawing unit of the drawing machine for jackpot game performs the group drawing in a manner that a particular group among the plurality of groups, in which a sum of a group-specific jackpot balance amount indicated by the game apparatus's own group-specific jackpot balance amount data stored in the group-specific jackpot balance amount storage unit and a group-specific maximum loss amount indicated by the game apparatus's own group-specific maximum loss amount data stored in the group-specific maximum loss amount storage unit, is equal to or more than a payout amount indicated by the payout amount data stored in the payout amount storage unit, is not determined as the winning group.