Cimarron Casino is located near the intersection of Highway 177 & Highway 33 in Perkins, OK (10 miles South of Stillwater, home of Oklahoma State University). Cimarron Casino offers 600 state of the art Class II & Class III games, a full-service bar, and 24-hour food service at the Cimarron Grille. Cimarron Casino is open 24 hours a day/7days a week and has been named the friendliest casino in Oklahoma! Cimarron Casino is an enterprise of the Iowa Tribe of Oklahoma. Must be 21 to enter.