Breath of Death VII: The Beginning

Alice: Madness Returns (Steam)

Alien Swarm (Steam)

Aliens vs Predator (Steam)

Aquaria (Steam)

Audiosurf: Ride Your Music (Steam)

Batman: Arkham Asylum (Game of the Year Edition) (Steam)

Burnout: Paradise - The Ultimate Box (Steam)

Counter-Strike: Source (Beta)

Counter-Strike: Source (Beta)

Counter-Strike: Source (Steam)

Counter-Strike: Source (Steam)

Crysis (Steam)

Dark Messiah: Might and Magic (Steam)

DEFCON: Everybody Dies (Steam)

Defense Grid: The Awakening (Steam)

Duke Nukem Forever (Steam)

FlatOut: Ultimate Carnage (Steam)

From Dust (Steam)

Garry's Mod (Steam)

Ghostbusters: The Video Game (Steam)

Half-Life 2: Deathmatch (Steam)

Half-Life 2: Lost Coast

Half-Life Deathmatch: Source

Half-Life Deathmatch: Source (Steam)

Half-Life: Source

Hammerfight (Steam)

Lara Croft and the Guardian of Light (Steam)

Lost Planet: Extreme Condition (Steam)

Mass Effect (Steam)

Metro 2033 (Steam)

Mirror's Edge (Steam)

Need for Speed: Hot Pursuit (Steam)

Oddworld: Abe's Exoddus (Steam)

Oddworld: Abe's Oddysee (Steam)

Operation Flashpoint: Dragon Rising (Steam)

Overlord (Steam)

Overlord II (Steam)

Overlord: Raising Hell (Steam)

Portal (Steam)

Prince of Persia: The Sands of Time (Steam)

Rage (Steam)

Recettear: An Item Shop's Tale (Steam)

Red Faction: Guerrilla (Steam)

Red Faction: Guerrilla - Demons of the Badlands (Steam)

S.T.A.L.K.E.R.: Call of Pripyat (Steam)

S.T.A.L.K.E.R.: Clear Sky (Steam)

Sanctum (Steam)

Serious Sam HD: The First Encounter (Steam)

Serious Sam HD: The Second Encounter (Steam)

Singularity (Steam)

Sol Survivor (Steam)

Sonic Generations (Steam)

Star Wars: The Force Unleashed (Ultimate Sith Edition) (Steam)

Star Wars: The Force Unleashed - Hoth Mission Pack (Steam)

Star Wars: The Force Unleashed - Jedi Temple Mission Pack (Steam)

Star Wars: The Force Unleashed - Tatooine Mission Pack (Steam)

Team Fortress 2 (Steam)

Terraria (Steam)

The Ball (Steam)

The Chronicles of Riddick: Assault on Dark Athena (Steam)

The Chronicles of Riddick: Escape from Butcher Bay (Remastered)

The Elder Scrolls V: Skyrim (Steam)

Tomb Raider: Legend (Steam)

Trauma (Steam)

Warhammer 40,000: Dawn of War II (Steam)

Warhammer 40,000: Dawn of War II - Chaos Rising (Steam)

Warhammer 40,000: Space Marine (Steam)

Worms Reloaded (Steam)

X-COM: Apocalypse (Steam)

X-COM: Enforcer (Steam)

X-COM: Interceptor (Steam)

X-COM: Terror from the Deep (Steam)

X-COM: UFO Defense (Steam)

X: Beyond the Frontier (Steam)

X: Tension (Steam)

X²: The Threat (Steam)

X³: Albion Prelude (Steam)

X³: Terran Conflict (Steam)

Battlefield 2

Fallout 3 (Game of the Year Edition)

Fallout 3: Broken Steel

Fallout 3: Mothership Zeta

Fallout 3: Operation Anchorage

Fallout 3: Point Lookout

Fallout 3: The Pitt

Fallout: New Vegas

Half-Life 2

Half-Life 2: Episode One

Half-Life 2: Episode Two

Left 4 Dead

Left 4 Dead 2

Portal

Team Fortress 2

Amnesia: The Dark Descent (Steam)

And Yet It Moves (Steam)

Anomaly: Warzone Earth (Steam)

Atom Zombie Smasher (Humble Store)

Bastion (Steam)

Bit.Trip Runner (Humble Store)

Blocks That Matter (Steam)

Braid (Humble Store)

Cave Story+ (Humble Store)

Civilization V (Steam)

Cogs (Steam)

Crayon Physics Deluxe (Steam)

Darwinia (Steam)

Dungeons of Dredmor (Steam)

Frozen Synapse (Steam)

Gish (Steam)

Gratuitous Space Battles (Steam)

Jamestown: Legend of the Lost Colony (Steam)

Legend of Grimrock (Steam)

Limbo (Steam)

Lone Survivor: The Director's Cut (Steam)

Machinarium (Steam)

Multiwinia: Survival of the Flattest (Steam)

NightSky (Humble Store)

Osmos (Steam)

Penumbra: Overture (Steam)

Psychonauts (Steam)

Revenge of the Titans (Humble Store)

Samorost 2 (Steam)

Serious Sam 3: BFE (Steam)

Shadowgrounds (Steam)

Shadowgrounds: Survivor (Steam)

Shank (Humble Store)

Super Meat Boy (Steam)

Superbrothers: Sword & Sworcery EP (Steam)

The Binding of Isaac (Steam)

Torchlight (Steam)

Trine: Enchanted Edition (Steam)

Uplink: Trust is a Weakness (Steam)

VVVVVV (Steam)

World of Goo (Steam)

Portal 2

Landstalker: Die Schätze von König Nolo