For example, Indian Rummy, which uses two decks of cards and enables more intricate gameplay, gave the game a distinctive flavor in India. Likewise, in Latin America, the game developed into "Conquian," which isrummy mobile app download regarded as one of the original variations of rummy. There are many variations of rummy nowadays, each with its own set of guidelines and tactics. The game is a favorite past time for people of all ages and backgrounds because of its timeless appeal, which combines skill, strategy, and chance. Recognizing Rummy's Foundations. Forming sets and runs from a hand of cards is the fundamental element of the card game Rummy.