Rummy is fundamentally about forming runs & sets from the cards that are dealt to each player. A run is a string of three or more cards in the same suit, whereas a slots meaningset is made up of three or four cards of the same rank but different suits. When the game is over, the goal is to combine these combinations while lowering the number of points in your hand. It's crucial to understand the rules and variations of Rummy because various iterations may add special components that affect gameplay.