Dawn of War: Winter Assault features the Imperial Guard, an all-new race with which to dominate your opponents. In addition, new units are included for all four original races providing the ultimate combat experience. Players can choose to battle through an all-new, single-player campaign or wage war online against their friends with strategically enhanced multiplayer gameplay in 20 new maps.

Building on the momentum from 2004's RTS Game of the Year, the Dawn of War: Game of the Year edition features eight new multiplayer maps, a collectible concept art book detailing the new units in Dawn of War: Winter Assault and a $5 rebate off the purchase of the expansion pack.