Rummy 51: A Complete Guide to Mastering the Game Rummy 51 is a well-known card game that incorporates strategy, skill, & a little bit of luck. Two to six game exchange 567players can participate, and a standard deck of cards is used. Forming legitimate sets & runs is the goal of the game, with the ultimate goal being to be the first player to go out by melding all of your cards. For both novice and expert players, it is essential to comprehend the fundamentals of Rummy 51.