Richard Halliwell, who co-created Warhammer Fantasy with Rick Priestley, Bryan Ansell, and Jervis Johnson for Games Workshop in its earliest days, has passed away, according to a Tweet by colleague Graeme Davis.

In addition to co-creating the first edition of Warhammer Fantasy, Halliwell continued to develop the game in the 1980s, ultimately working on three editions.  He also co-designed Dark Future, an apocalyptic car racing game in 1988, and designed two games based on 2000 AD comics: Rogue Trooper and Block Mania.

Halliwell was the sole designer credited on the first and third editions of Space Hulk, which won the Origins Award for Best New Board Game in 2010 (see "36th Annual Origins Awards").