PC gamers can return to the dark and violent 41st millennium in this stand-alone expansion to the 2004 real-time strategy game Warhammer 40,000: Dawn of War. Players once again step into the interstellar battle between warriors, fighting machines, and aliens, and "Soulstorm" adds two new races to the mix, bringing the number of potentially combatant groups to nine. In addition to the new factions and new units for every group, for the first time air units have been added and multiplayer modes feature new achievement medals. Returning from "Dark Crusade" is the single-player "meta-map" system that gave tangible rewards for occupying enemy territory, except now instead of taking place on a single planet it unfolds across an entire star system. ~ Christopher Brown, All Game Guide