Dark Sun is an original Dungeons & Dragons campaign setting set in the fictional, post-apocalyptic desert world of Athas. The product line began with the original Dark Sun Boxed Set setting was released for AD&D in 1991 The product and was supported by TSR until 1996. It was one of TSR's most successful releases. In 2010, Wizards of the Coast released and updated setting and rulebook for the setting using the fourth edition rules. Dark Sun is notable for its innovative metaplot, influential art work, dark themes, and its genre bending take on traditional fantasy role-playing game.