A Complete Guide to Mastering Rummy Rummy is a timeless card game that has enthralled players for many years. Because it combines strategy, skill, and a little bit of luck, it is popular whappy slotsith both casual and competitive players. Anyone hoping to succeed in this captivating game must grasp the fundamentals of rummy. Forming sets & runs from the cards dealt to each player is the fundamental activity of rummy. While a run is made up of three or more consecutive cards of the same suit, a set is made up of three or four cards of the same rank but different suits.