Below is my collection of PC games that I have collected over the years. At the moment this is not a full list and new games are constantly being added to. Rather than making it look plain with plain text I thought it would look better with pictures instead.

A
Alan Wake (Steam) Alan Wake's American Nightmare (Steam) Alice: Madness Returns (Steam/Origin) Aliens vs. Predator (Steam)
Alpha Protocol APB Reloaded (Steam) Assassin's Creed (Retail) Assassin's Creed 2 (Steam)
Audiosurf (Steam)

B
Bastion (Steam) Batman: Arkham Asylum (Steam) Batman: Arkham City (Retail) Battlefield: Bad Company 2
Battlefield 3 (Origin) Battlefield 3 Beta (Origin) Bioshock (Retail) Bioshock 2 (Steam)
BRINK Bulletstorm Bully: Scholarship Edition

C
Call of Duty (Retail) Call of Duty 2 (Steam) Call of Duty 4: Modern Warfare (Retail) Call of Duty: Modern Warfare 2 (Steam)
Call of Duty: Black Ops(Steam) Call of Duty: Modern Warfare 3 (Steam) The Chronicles of Riddick: Assault on Dark Athena (Steam) Command & Conquer: Red Alert 3 (Steam)
Counter-Strike: Global Offensive Beta (Steam) Crysis (Retail) Crysis: Warhead (Retail) Crysis: Warhead (Steam)
Crysis 2 (Steam/Origin)

D
The Darknes 2 (Steam) Dark Sector (Retail) Darksiders (Steam) Dead Island (Steam)
Dead Space(Steam) Dead Space 2 (Steam/Origin) Deus Ex: Human Revolution (Steam) Dues Ex: Human Revolution - The Missing Link (Steam)
Deus E: Invisible War (Steam) Diablo 3 (Retail) Dirt 3 (Retail) DOOM 2: Hell on Earth (Steam)
DOOM 3 (Steam) DOOM 3: Ressurection of Evil (Steam) DOTA2 (Steam) Duke Nukem Forever (Steam)
Dragon Age 2 (Origin)

F
F1 2010 (Retail) F1 2011 (Retail) F.E.A.R. 3 (Steam) Far Cry (Steam)
Far Cry 2 (Steam) Final DOOM (Steam) Firefall Beta (Downloadable) Fowl Space (Steam)
Freedom Force (Steam) Freedom Force vs. The Third Reich (Steam) Frontlines: Fuel of War (Steam)

G
Gears of War (Retail) Ghostbusters: The Video Game (Steam) Gotham City Imposters (Steam) Grand Theft Auto 4 (Steam)
GRID (Steam)