The All-Inclusive Guide to Mastering 777 Rummy 777 Rummy is a fascinating card game that blends strategy, skill, and a little bit of luck. Two to six players can participate, and a standard 52-card deck 51 bonus rummy appis usually used. Forming legitimate runs and sets—card combinations that satisfy predetermined requirements—is the aim of the game. A run is made up of three or more consecutive cards of the same suit, whereas a set is made up of three or four cards of the same rank but different suits. By creating these combinations, players try to reach the game's target score of 777 points, which gives it its name.