Players take turns placing numbered tiles in runs (consecutive numbers of the same color, like 2, 3, 4 in red) and groups (three or more of the same number in different colors, like a red 9, a blue 9, and a black 9), rummy style. The Joker tiles add to the fun; they can be any color or number.The object is to be the first to play every tile on your rack. Players keep track of who wins each roundthe player who wins the most rounds wins this time-tested tile game! There's also a point system for use as a tie-breaker.