And the high denomination slot machine usually has a much higher return than a penny slot machine. But you can play some high denomination slots games for $1 a spin. You need to understand the difference between denominations and total bet amount when you play slots.Ī penny slot machine can cost $2 or $3 or more per spin. And the loosest slots games are almost always the machines with the highest denominations. I’ve spent a great deal of time studying slots returns to determine the loosest slots games in casinos. And when I say high limit slot machines, I mean high denomination slot machines. The best slot machines and loosest slots games at River Spirit Casino Tulsa in 2022 are high limit slots. 7 – River Spirit Casino Tulsa Video Poker Optionsġ – High Limit Slots at River Spirit Tulsa Offer the Best Returns.6 – Licensed Slot Machines like The Price Is Right.5 – River Spirit VGT Red Screen Slot Machines.4 – Margaritaville Slots Area at River Spirit Tulsa.3 – Set Jackpot River Spirit Slots Games.2 – River Spirit Progressive Slot Machines Can Change Your Life.1 – High Limit Slots at River Spirit Tulsa Offer the Best Returns.