Rummy is played with 2-6 players and uses one or two decks of cards. The objective is to form valid sets and runs. Each player is dealt 10 cards, and they draw and discard cards to complete their sets. A set is three or four cards of the same rank, and a run is three or more consecutive cards of the same suit. The game continues until a player has a full hand of valid sets and runs. Players score points based on the remaining cards in their opponents' hands. The first to reach a certain score wi...