Steam DLC

Name	Type	Release Date
Killing Floor Outbreak Character Pack	DLC	24 Jul, 2009
Killing Floor: Nightfall Character Pack	DLC	19 May, 2010
Cossacks: Campaign Expansion	DLC	21 Jan, 2011
RACE 07: Andy Priaulx Crowne Plaza Raceway (Free DLC)	DLC	25 Jun, 2008
GTR Evolution Expansion Pack for RACE 07	DLC	1 Sep, 2008
STCC - The Game 1 - Expansion Pack for RACE 07	DLC	22 Oct, 2008
Borderlands: The Zombie Island of Dr. Ned	DLC	8 Dec, 2009
Ghostbusters: Sanctum of Slime Challenge Pack DLC	DLC	1 Jun, 2011
Call of Duty®: Modern Warfare® 2 Stimulus Package	DLC	4 May, 2010
Call of Duty®: Modern Warfare® 2 Resurgence Pack	DLC	6 Jul, 2010
Empire: Total War™ - Special Forces Units & Bonus Content	DLC	4 Mar, 2009
Empire: Total War™ - Elite Units of the West	DLC	22 Jun, 2009
Empire: Total War™ - The Warpath Campaign	DLC	5 Oct, 2009
Empire: Total War™ - Elite Units of America	DLC	7 Dec, 2009
Empire: Total War™ - Elite Units of the East	DLC	8 Feb, 2010
Aliens vs. Predator Swarm Map Pack	DLC	17 Mar, 2010
Aliens vs Predator™ Bughunt Map Pack	DLC	Jul 2010
Aaaaa! - Brutal Concussion	DLC	22 Jul, 2011
F.E.A.R. 2: Reborn (DLC)	DLC	3 Sep, 2009
Civilization V - Cradle of Civilization Map Pack: Mediterranean	DLC	30 Nov, 2010