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