Learning Rummy: An All-Inclusive Guide Rummy is a well-known card game that has fascinated players for centuries all over the world. Forming runs and sets from afree canadian slots standard deck of cards is the fundamental aspect of the game. For example, a run is a series of three or more cards in the same suit, whereas a set is three or four cards of the same rank but different suits. Combining these combinations to reduce the number of points in your hand when another player leaves is the goal.