Netherstorms +5

Arma II - 3 Keys
Bastion - 2 Keys
Batman: Arkham Asylum GOTY - 2 Keys
Bioshock - 2 Keys
Bioshock 2 - 2 Keys
Botanicula - 2 Keys
Cubemen 2 - 1 Keys
Duke Nukem 3D: Megaton Edition - 2 Keys
Euro Truck Simulator - 2 Keys
FEZ - 2 Keys
Half life 2 - 2 Keys
Half life 2: Episode 1 - 2 Keys
Hitman: Codename 47 - 1 Key
Hitman 2: Silent Assassin - 1 Key
Killing Floor - 2 Keys
Mirror's Edge - 3 Keys
Natural Selection 2 - 2 Keys
Offspring Fling - 1 Key
Planet Stronghold + DLC
Serious Sam 3: BFE - 2 Keys
Serious Sam HD: The First Encounter - 2 Keys
Serious Sam HD: The Second Encounter - 2 Keys
Shadow Warrior Classic Redux - 2 Keys
Sid Meier's Civilization III: Complete - 1 Key
The Bureau: XCOM Declassified - 2 Keys
Thomas Was Alone - 3 Keys
Trainz Simulator 12 - 2 Keys
Trine 2: Complete Story - 3 Keys
Waking Mars - 1 Key
X-COM: Apocalypse - 1 Key
X-COM: Enforcer - 1 Key
X-COM: Interceptor - 1 Key
X-COM: Terror from the Deep - 1 Key
X-COM: UFO Defense - 1 Key