The Ultimate Rummy Cash Game adheres to the standard rules of rummy, but it also has a number of variations that can up the ante and make it more difficult. "Indian Rummy," which is played with two decks of cards and jokers, is sattaking.upone well-liked variant. Players now need to use jokers to complete their hands and form sets and runs with additional cards, which adds another level of strategy and complexity to the game. Another version is called "Gin Rummy," which is a two-player, faster-paced variant of rummy. In Gin Rummy, the object of the game is to form sets and runs in your hand as soon as you can. The object of the game is to knock, or lay down your cards, to end the round.