Forming sets and runs from the cards in your hand is the goal of rummy, which is usually played with a standard 52-card deck. A run is a string of three or mstta king onlineore cards in the same suit, whereas a set is made up of three or four cards of the same rank but different suits. Two to six people can play the game, & the rules change a little depending on the version being played. Rummy is essentially about creating these combinations while skillfully controlling your hand.