Understanding 334 Rummy: A Complete Guide 334 Rummy is an engrossing card game that blends skill, strategy, & a little bit of luck. With a standard deck of cards, two to six playerrummy mars downloads can usually play the game. Creating valid sets & sequences—that is, card combinations that satisfy certain requirements—is the goal. While a sequence consists of three or more consecutive cards of the same suit, a set consists of three or four cards of the same rank but different suits. Since players must score 334 points to win, the game is called "334".