Many variations of the game, such as Gin Rummy and Oklahoma Rummy, emerged as a result of the game's introduction into American culture. These modifications not onrame goldly demonstrated the game's adaptability but also added to its long-lasting appeal. With the introduction of television and the growth of game shows that featured card games, rummy's popularity skyrocketed in the middle of the 20th century, further integrating it into American leisure culture. The Development of Rummy Apps.