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