Review for Comanche Red River Casino Review For Red River O'Aces Bar Google User Oct 16 '18 at 3:27 Slot machines are constantly being moved out with current slots coming in. A good thing but this also means minimum bets increase as well. There are now very few penny machines with 20 or 25 cent minimum. A few 30 and 40 cent minimum, mostly 50 cent up. Food in the restaurant is good and daily food specials are good. View full site to comment or like