The Ork resource is generated continuously by WAAAGH! banners and is used up when creating Ork troops and vehicles. In addition to these primary resources, the Orks also have the Ork resource, which represents the Ork species' gestalt psychic field that grows in intensity as the population of Greenskins in a given area expands. As the player progresses up the tech tree, reliance on power increases. Additionally, some maps have 'slag deposits', upon which more powerful generators can be constructed to produce power faster. Power is gathered by building generators, with each headquarters supporting up to six generators. Though resources are unlimited, all sources of requisition will eventually decay, dramatically decreasing their supply rate. These points can be reinforced with defensive structures that also increase the rate of requisition accumulation. The player can increase the rate at which requisition is acquired by using infantry squads to capture and control certain 'strategic points' on the battlefield. Instead, requisition is generated constantly by the army headquarters. These resources are not harvested or otherwise gathered by the player's units.

Two primary resources exist: requisition and power. Battles are won either by holding a certain number of control points for a period of time or by destroying all of the opposing armies' base structures. These control points are captured by infantry squads and provide resources to construct additional units and buildings or unlock certain units in an army's tech tree. The subsequent focus of the game then shifts to capturing and holding strategic locations on the battlefield. The player starts with a single headquarters building and a few basic units, usually just one construction unit. Gameplay is initially focused on base and unit construction. The sequel title, Dawn of War II, was released in February 2009. Most recently, Dawn of War and the first two expansions were released together as The Platinum Collection in the USA or as the Dawn of War Anthology in the PAL regions. Later, the Game of the Year edition and Winter Assault were bundled in the Gold Edition in the USA.

The Game of the Year Edition was released on Septemin the USA and on Septemin Europe, containing 4 exclusive maps.

Since the original game was made available, three expansion packs have been produced: Winter Assault in 2005, Dark Crusade in 2006 and Soulstorm in 2008. It would spawn a series of sequels that would prove to be the best-selling Warhammer 40,000 video games of all time and would serve as the entry point into the Warhammer 40,000 universe for countless fans. It was released for the PC by THQ on Septemin North America. 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.

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