Rummy Gold is a versatile game that can be played in a variety of ways. Oklahoma Gin is a well-liked Rummy Gold variation that shares some similarityono 777ies with the original game but also differs significantly in several important ways. The ability to knock with unmatched cards in hand in Oklahoma Gin can give players an additional strategic advantage. Hollywood Gin is a fast-paced, high-stakes variant of Rummy Gold that is also quite popular.