In the cold north of western Immoren lies the mighty Khadoran Empire, whose massive military epitomizes the national ideals of strength and resilience. Legions of Winter Guard march at the call of the empress, who is bent on conquest of the entire Iron Kingdoms.

Known as the Jewel of the Iron Kingdoms, the great nation of Cygnar is beset by enemies on all sides. Against these threats stands the elite army of the Cygnus, including battle-hardened trenchers, deadly long gunners, and the legendary Storm Knights, warriors whose weapons bristle with lightning.

Devout worshippers of Menoth, the Creator, the people of the Protectorate forged the newest of the Iron Kingdoms out of the tyranny of religious oppression. Secret warjack depots send new and improved chassis into the world, while freshly recruited zealots armed from hidden weapons stashes muster to join the front.

The undead forces of Cryx exist solely to track down and defeat the enemies of Lord Toruk, the Dragonfather. Toruk's agents continually gather the dead from the battlefield to replenish their ranks and provide parts for their nightmarish necromantic creations.