Sin Rummy

Sin Rummy is a brand new game - a vicious twist on one of the most popular card games of all time (Gin Rummy). The game itself is elegantly contained inside a gorgeous deck of the highest-quality playing cards, manufactured by the United States Playing Card Company. Sin Rummy follows the rules of Rummy, with a simple exception: before each round starts, each player is dealt one 'social sin' card face up on the table. This card changes the rules for only the player that has it, for the entirety of that round. Then play proceeds with whatever variant of Rummy you prefer. —description from the publisher