Invented in the early 20th century and rapidly gaining popularity in the US, Gin Rummy is one of the most well-liked Rummy variations. With the objective of being the first player to "knock," or lay downone 21 slots, all of their cards, Gin Rummy players try to arrange their cards into sets and sequences. Indian Rummy is a well-liked variant that utilizes two decks of cards and features jokers as wild cards. Particularly in India and other Asian countries, this variation is highly favored. Traditional Rummy games have seen a rise in popularity recently, with many players looking for older iterations & rule sets.