. Contents. Find information about Oklahoma 18+ casinos, online casinos for 18 and up Oklahoma Players, and the minimum legal gambling age in the state of OK as of. River Spirit Casino Resort. Downstream Casino Resort. Get the details on Oklahoma WinStar World. 1 List of casinos; 2 Gallery; 3 See also; 4 References; 5 External links. More than 70 casinos in Oklahoma offer a variety of slot machines, card & table games and horse racing thrills. All gaming Guests must be at least eighteen (18) years old to wager; proof of age may be required. Indigo Sky Casino & Hotel. Choctaw Casino Resort. WinStar World Casino and Resort. A valid government-issued photo ID must be provided upon. Hard Rock Hotel & Casino Tulsa. I've heard there are tribal casinos that have an age limit of 18+ instead of Just moved here and some of my employees are younger than Living in Oklahoma, I've always understood it to be every casino is 18+ to “game” (the term used to get around the “sin” of gambling). Chisholm Trail Casino. Riverwind Casino. Oklahoma 18+ Casinos ; Sugar Creek Casino, N Broadway Ave, Hinton, OK , 18+ ; Teepee Casino, East 6th Street, Yale, OK , 18+ ; Texoma Casino. River Bend Casino. This is a list of casinos in Oklahoma. Choctaw Casino: You can play at 18 yrs old here - See traveler reviews, 10 candid photos, and great deals for Pocola, OK, at Tripadvisor.