Rummy: An All-Inclusive Guide to Mastering the Game A well-known card game that has enthralled players for centuries worldwide is rummy. The game's main objectivgame app downloade is to form runs and sets using a standard deck of cards. A run is a series of three or more cards in the same suit, whereas a set is made up of three or four cards of the same rank but different suits. When another player goes out, the goal is to combine these combinations to reduce the number of points in your hand.