Contract Rummy is different from traditional rummy games in that it has several rounds with predetermined contracts that specify the necessary combinations for each rounrummy all apkd. This variation, which is commonly played with two decks of cards, can be played by two to six players, making it adaptable to a variety of group sizes. gameplay as well as strategy. Every round in Contract Rummy has its own set of melding requirements, which could include a set or run count that players must meet in order to leave.