For those of you out there that are savvy slot players and those of you that want to play Bally slot games too should look at the table below, for it lists their slot machines that have been set with the very highest long term expected payout percentages.īe aware though that each of the Bally slot machines listed up above will be designed to pay-out those RTP’s over the long term and as such the pay-out percentage you will achieve on one single slot playing session could be lower or even higher than the ones listed up above.