It is an object to appropriately obtain an effect aimed at by changing the amount of payout objects to be paid out through specific control according to the bet amount of a game play that has produced a predetermined progress result regarding a start condition for specific control.A specific control start condition count value is counted according to a progress result of a game controlled by a game progress control unit, an accumulated amount of bet objects bet in a game when the count value was counted is stored, specific control is started based on the count value satisfying a predetermined specific control start condition, and payout objects of an amount according to the stored accumulated amount of bet objects are paid out in accordance with the specific control.