Played with two players and a slightly different set of rules, Gin Rummy is one popular variation. In the game of Gin Rummy, players try to make runs anonline casino slots njd sets with their hands & then "knock" when they think their opponent has more points than they have. Played with two decks of cards & featuring jokers as wild cards, Indian Rummy is another well-liked variation. To further complicate the game, Indian Rummy has special rules for creating sets and runs.