High Quality Content by WIKIPEDIA articles! Warhammer 40,000 (informally known as Warhammer 40K or simply 40K) is a tabletop miniature wargame produced by Games Workshop, set in a dystopian science fantasy universe. Warhammer 40,000 was created by Rick Priestley in 1987 as the futuristic companion to Warhammer Fantasy Battle, sharing many game mechanics. Expansions for Warhammer 40,000 are released from time to time which give rules for urban, planetary siege and large-scale combat. The game is currently in its fifth edition, which was published in 2008.