I called a friend of mine who visits the Winstar weekly to play slot machines and asked him which slot machine games were best. He told me that he only saw any kind of winnings on the higher denomination games 8212 the $1 machines and up. Take a minute to orient yourself with our interactive casino map, so you can make the most of your experience at the World's Biggest Casino. Eliminate the inconvenience of carrying cash by using draw markers to play table games or slots. Markers can be repaid directly at the casino or processed through your personal checking account. For questions or additional information regarding casino credit, please call 580-642-9247 or 580-642-9248. Visit our credit office in the High Limit gaming area in the Sky Casino. Sunday-Thursday 8am-4pm Friday Saturday 8am-12am