Rise of The Triad for 4xtf2 keys: http://www.steamtrades.com/trade/UBWjI/h-rise-of-the-triad-w-4x-keys-tf2dota2
Or
Primal Carnage for 2xtf2 keys: http://www.steamtrades.com/trade/862vc/h-1x-primal-carnage-retail-steam-key-w-2x-key-tf2dota2
Serious Sam 2 - 1 key
The Binding of Isaac - 1 key
Binding of Isaac: Wrath of the Lamb - 1 key
Just Cause - 1 key
Rome: Total War Gold Edition - 1 key
Terraria - 2 keys
Amnesia - 2 keys
Garry's Mod - 2 keys
The Witcher: Enhanced Edition Director's Cut - 2 keys
Half-Life 2 - 2 keys
Syberia Bundle - 2 keys
Bastion - 2 keys
Alan Wake - 2 keys
Magicka - 2 keys
The Showdown Effect - 2 keys
Bioshock 2 - 3 keys
Deus Ex: Human Revolution - 3 keys
Chaos on Deponia - 3 keys
Serious Sam 3: BFE - 3 keys
Sid Meier's Civilization V - 3 keys
GRID - 3 keys
S.T.A.L.K.E.R: Shadow of Chernobyl - 3 keys
Trine 2: Complete Story - 3 keys
Killing Floor - 3 keys
Torchlight II - 4 keys
Counter-Strike: Source - 4 keys
Counter-Strike: Source + Garry's Mod - 4 keys
Counter-Strike: Global Offensive - 4 keys
Infestation: Survivor Stories - 4 keys
GTA IV - 4 keys
Portal 2 - 4 keys
Chivalry - 4 keys
PAYDAY The Heist - 4 keys
Natural Selection 2 - 4 keys
The Witcher 2 - 4 keys
Left 4 Dead 2 - 4 keys
Scribblenauts Unlimited - 4 keys
Flatout Complete Pack - 4 keys
Counter-Strike Complete - 5 keys
Saints Row: The Third - The Full Package - 5 keys
Killing Floor Bundle - 5 keys
Crusader Kings II - 5 keys
Alice: Madness Returns - 5 keys
Sonic & All-Stars Racing Transformed - 5 keys
Mafia II - 5 keys
Half-Life Complete - 6 keys
GTA Complete Pack - 7 keys
Mass Effect Collection - 7 keys
Crusader Kings II Collection - 8 keys
Counter Strike Complete = 4 Keys or Two Pack = 7 Keys
Left 4 Dead Bundle = 4 Keys
Killing Floor Bundle 2013 = 4 Keys
:D NO Just Cause 1 or Anomaly: Warzone Earth offers.