[H]XCOM: Enemy Unknown, Anomaly: Warzone Earth,.... [W] TOD , Key, ref

XCOM: Enemy Unknown (steam key) = 1 TF2 key
Killing floor(steam key) = 1 TF2 key
Bioshock (steam key) = 1 TF2 key
The Bureau: XCOM Declassified (humble bundle gift link) = TOD
Darkness 2 (steam key) = TOD
Anomaly: Warzone Earth (steam key) = 1 ref
Really Big Sky (steam key) = 1 ref
Space Hack (steam key) = 1 ref
Nosferatu: The Wrath of Malachi (steam key) = 1 ref