In order to accommodate a wide range of tastes and playing styles, Rummy Mars 51 has spawned numerous adaptations and variations. Variations can include special wild cards that can be used in place of any card in a meld, special scoring systems, or 7 rummy appadditional rules or changes to the number of cards dealt. Both novice and expert players may find the game more engaging as a result of these variations, which can add layers of complexity and excitement. One well-liked variant is "Rummy 500," in which players try to accumulate 500 points over several rounds as opposed to just losing first. In this version, players lose points for holding unmelded cards when another player leaves, and they gain points based on the value of the cards they meld.