View Promotions Now — We provide our customers with a best-in-class gaming experience. River Bend Casino · 5. There are Indian casinos and gaming centers owned by 33 tribes in Oklahoma. River Spirit Casino Resort · 6. Riverwind Casino · 4. Restaurants on-site. 1. Choctaw Casino Resort · 3. Must be 18 to participate. Get the details on Oklahoma WinStar World. As discussed in the section above, the legal entry age for casinos in Oklahoma is However, The legal age to gamble in Oklahoma City, OK, is 18 years. More than 70 casinos in Oklahoma offer a variety of slot machines, card & table games and horse racing thrills. There are no casinos in Oklahoma that accept year-olds. Riverwind Casino Norman, OK-9, Oklahoma City, OK , 18+ ; Sac & Fox Nation Stroud Casino, Rd, Stroud, , 18+ ; SaltCreek Casino, US-. Table Game availability and live entertainment based on Casino location. · Minors are prohibited from being left unattended on the. Guests must be actively playing with their Club Osage card. . Red Hawk Gaming Center · Wetumka · Hughes ; Remington Park Racetrack & Casino · Oklahoma City · Oklahoma ; RiverStar Casino, Terral, Jefferson ; River Spirit. Except otherwise stated, children under 18 years old are not allowed in casinos in. Oklahoma has more Indian casinos than any other state in the nation. All gaming Guests must be at least eighteen (18) years old to wager; proof of age may be required. WinStar World Casino and Resort · 2.