A defensive tactic that can lower your overall score if an opponent goes out before you is can be to try to minimize the point value of unmelded cards in your hand asexpansion slots the game goes on. Examining Rummy Variations' Diverse World. There are many different variations of rummy to suit a wide range of tastes and ability levels. Gin Rummy is one well-liked variation that is usually played between two players and places an emphasis on forming runs and sets while reducing deadwood, or unmatched cards.