What are your favorite games?

[Who]

ohhhhh, where do I start...

Thief series
Metal Gear Solid series
Silent Hill (1, 2 and Shattered Memories)
Penumbra series
Amnesia The Dark Decent
Planescape: Torment
The Elder Scrolls: Morrowind
Manhunt
Age of Empires 2
Another World
Bioshock
Dota 2
Gothic (1 and 2)
Shadow Of The Colossus
Blade: Edge Of Darkness
Vampire The Masquerade: Bloodlines
Grand Theft Auto: Vice City
Batman: Arkham Asylum
Fahrenheit
Fallout (1, 2 and New Vegas)
Dead Space
Ultimate Mortal Kombat 3
System Shock 2
Return To Castle Wolfenstein
Alien Vs Predator 2
Alan Wake

Those are some of them.