Warhammer 40,000: Dawn of War is a real-time strategy computer game developed by Relic Entertainment based on Games Workshop's popular tabletop wargame, Warhammer 40,000. It was released by THQ on September 20, 2004 in North America. Since its release, three expansion packs have been released: Winter Assault in 2005, Dark Crusade in 2006, and Soulstorm in 2008.
The Game of the Year edition, containing 4 exclusive maps, was released on September 20, 2005 in the USA and on September 23 in Europe. Later, the Game of the Year edition and Winter Assault were bundled in the Gold Edition (USA), and after the release of Dark Crusade it was packed with Dawn of War and Winter Assault as The Platinum Collection (USA) or Dawn of War Anthology (Europe).
Most recently, Dawn of War and all three expansions were released together as Dawn of War: The Complete Collection.