A Classic of Strategy: Gin Rummy. One popular variation of rummy that has become very popular in the US is Gin Rummy, which was created in thteen pati wine early 20th century. The main objective of this two-player game is to form melds & knock when a player thinks they have a better hand. Gin Rummy is renowned for its strategic depth because it requires players to monitor their opponent's moves and carefully manage their discards.