The round ends when one player successfully melds all of their cards, at which point the game is over. Although the exact rules being followed can affect scoring, plknight slotsayers typically gain points for the cards they have melded and lose points for any unmelded cards they still hold. Traditionally, a standard 52-card deck is used to play rummy, though some variations may use multiple decks or jokers. In order to form sets & runs, it is essential to know the rank & suit of each card in the deck.