THQ has announced that Warhammer 40,000: Dawn of War II - Chaos Rising, a standalone chapter in the acclaimed RTS series, is scheduled for release on Games for Windows LIVE in spring 2010.

Warhammer 40,000: Dawn of War II - Chaos Rising features a new playable army, the traitorous Chaos Space Marines, and continues the epic journey of the Blood Ravens as they battle this new, more personal enemy.

Developed by THQ's Relic Entertainment, Chaos Rising offers new single-player and co-op campaigns, a level cap increase from 20 to 30, more powerful war-gear and new multiplayer options.

"Chaos Rising delivers a tremendous amount of new content, including the powerful Chaos Space Marines, new multiplayer maps and units, a new level cap and a continuation of the Blood Ravens single player campaign," said Kevin Kraff, vice president of global brand management, THQ. "Relic's passion for the Warhammer 40,000 universe and talent in crafting innovative RTS games will ensure Chaos Rising is an engaging experience that will advance the franchise and genre."

The standalone expansion will also feature new multiplayer maps and new units for the Orks, Eldar, Tyranids and Space Marines.