Warhammer Online is calling for publishers and technology providers to get in touch to discuss potential business partnerships for its eagerly-awaited self-titled massively multiplayer online role playing game. Warhammer Online Ltd. is a joint venture between fantasy gaming expert Games Workshop and UK developer Climax. The company was created in 2001 to design, develop and deliver an online RPG also called Warhammer Online and set in Games Workshop’s dark and gritty Warhammer fantasy world.