[H] Dirt 3 keys [W] Games

Whats the source of these keys?

Dota 2 key add me if interested

Left 4 Dead 2 for Dirt 3 ? add me :)

Deus Ex Complete (!),Flatout,Borderlands (GOTY),Rome: Total War,Serious Sam HD (!),Left 4 Dead Bundle (!) **reserved,Vampire: The Masquerade - Bloodlines (!),RIP - Trilogy™,Orcs Must Die!,F.E.A.R. 2 (!),Dracula Origin,Painkiller: Recurring Evil (!),Sherlock Holmes and The Hound of The Baskervilles,Ghost Master,Dead Space,Ghostbusters: Sanctum of Slime,F.E.A.R.,Home,Dota 2,Dragon Age,Bards Tale,Painkiller Overdose,Nation Red,Plants vs Zombies (GOTY),Garry's Mod,Mirrors Edge,Quantum Conundrum