Warhammer 40,000: Dawn of War is a military science fiction real-time strategy video game developed by Relic Entertainment and based on Games Workshop's tabletop wargame Warhammer 40,000. It was released by THQ on September 20, 2004 in North America and on September 24 in Europe. Three expansion packs have been released: Winter Assault in 2005, Dark Crusade in 2006, and Soulstorm in 2008. Its first sequel, Dawn of War II was released in February 2009. Another sequel, Dawn of War III, was released in April 2017.
