Mastering Rummy: Success Strategies With origins dating back to the early 19th century, rummy is a timeless card game that has enthralled players for many generations. The game is usually playedrummy all bonus app with a standard deck of cards and two to six players, though there are some variations that might use special cards or multiple decks. Forming valid sets and runs—card combinations that satisfy certain requirements—is the main goal of rummy. Three or more consecutive cards of the same suit make up a run, whereas three or four cards of the same rank but different suits make up a set.