This planet is the playground of the Dark Gods: Khorne, Tzeentch, Slaanesh and Nurgle. After millennia, Aurelia has re-emerged with the forces of Chaos. After this, the planet disappeared into the warp entirely. Thousands of years ago the planet was engulfed in a warp-storm (a stellar disturbance where the Chaotic dimension known as the Warp meets real space), causing the fertile world to become a frigid wasteland. Aurelia - Once a verdant world, home to billions of humans and the jewel of the sector.Two new environments will be available in Chaos Rising to complement the three already available (the jungle/swamp terrain of Typhon, the deserts and canyons of Calderis, and the towering Gothic city-scape of Meridian). This is a conscious choice in the gameplay and will affect the ending of the game as well as what missions are available throughout the campaign for the player. Corruption describes how close the player's Marines (i.e.: the Force Commander, Jonah and the rest of the Squads under the player's command except for Davian Thule, who is the only member unaffected by corruption) are to turning to Chaos and betraying the Imperium of man. In the campaign there are often multiple objectives which will complete a mission depending on which one a player chooses to complete, they will become more or less corrupted. New to Dawn of War II: Chaos Rising is the Corruption System. The campaign marks the return of the Blood Raven heroes from the previous game, the Chaos Lord Eliphas from Dark Crusade, Derosa as the new governor of Meridian, and the heretical Vandis. Chaos Rising is set one year after the events of Dawn of War II and the defeat of the Tyranid invasion (as well as the Eldar and Ork forces) of sub-sector Aurelia.

Dawn of war 2 chaos rising corruption