GAME MACHINE

PROBLEM TO BE SOLVED: To provide a game machine capable of suppressing a fraudulent activity based on a result of grasping a predetermined processing timing.SOLUTION: A main control board 301 includes a system clock circuit 312 for outputting a system clock signal, an MPU 311 for controlling progress of a game, and a hard random number clock circuit 313 for outputting a hard random number clock signal. The MPU 311 controls the progress of the game on the basis of the input of a system clock signal. A jackpot random number counter is updated with a trigger of a rise of the hard random number clock signal, wherein the hard random number clock signal is set to satisfy one of conditions of that the hard random number clock signal does not synchronize with the system clock signal and that a trigger interval is different from a period of the system clock signal.