A Fantastic Choice for Fans of Card Games. If you want to change up your card game routine, Contract Rummy is a fantastic option. Players of all skill levels will have hours of fun wyono 777ith its distinctive gameplay mechanics and competitive environment. A lesser-known but no less entertaining variant that puts a distinctive spin on classic rummy gameplay is Oklahoma Rummy. The fundamental rules of Oklahoma Rummy are similar to those of Gin Rummy, but it adds a twist of surprise by introducing an intriguing rule about the initial discard pile.