Tonk Offline, also known as Tunk is a kind of knock Rummy or variation of Gin Rummy. Tonk Offline a standard 52 card deck is used, without jokers. Tonk Offline is best for two or three players. A standard 52 card deck is used, without jokers. The cards have values as follows: picture cards count 10 points, aces count 1 point and other cards count face value.