Because of its adaptability, rummy can be played in a multitude of ways to accommodate a range of tastes and playing styles. One well-liked variant is two-player Gin Rummy, which has acolour hack apk special scoring system based on a player's hand's unmatched cards. Jokers are used as wild cards in Indian Rummy, another popular variation that is normally played with two decks of cards. Other rummy variations include Rummikub, a tile-based game that incorporates strategy and planning, and Canasta, a game in which players must form melds of seven cards or more.