A game system 1 has a bookmaker terminal 20 for setting odds for various events, and a plurality of gaming machines 50 that receive, via communication means 10, odds information set by the terminal 20. Each of the gaming machines 50 has: a gaming device 55 for executing the gaming machine-original game; a game control section 70 for controlling the execution of the game played on the gaming machine 50, as well as for controlling acceptance/payout of a gaming medium; and a bookgame control section 70 for accepting a bet by the odds on the event, with respect to the received odds information. Accordingly, in a game arcade, even when a popular event is relayed, it is possible to provide a game system in which the attention of the player to the gaming machine is not decreased.