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