Pick one for NS2:
BETA:
DOTA Tradable Gift
GIFTS:
Dead Space 1
Dead Space 2
Dungeon Defenders
Evil Genius
Metro 2033
Nexuiz
Portal 2
Risen
Rome Total War Collection (with Alexander)
Star Wars Knights of the Old Republic
Terraria
Titan's Quest Gold
The Witcher Enhanced Edition
Torchlight
Trine Franchise (1+2)
Warhammer Dawn of War Platinum (3 games)
STEAM KEYS:
Deus Ex: Human Revolution Augmented
Hitman Blood Money
Just Cause
Quantum Conundrum
Supreme Commander 2
Cortex Command
Reign: Confict of Nations
Rig n' Roll
Theater of War 2: Africa 1943
The Void
HIB3 Android 3 Bonus key (World of Goo, Anomaly, Osmos, EDGE)
NON-STEAM KEYS:
CoH: Tales of Valor (works with Steam if you already have another CoH game to use the key with or off-Steam standalone)
MISC:
Impreial Tricorne (SK item)
Medieval War Helm (SK item)
Golden Laurel (SK item)
Genuine Foppish Physician (TF2 item)
Genuine Distinguished Rogue (TF2 item)
Genuine King of Scotland Cape (TF2 item)
Genuine K-9 Mane (TF2 item)
Genuine Stovepipe Sniper Shako (TF2 item)
Genuine Vigilant Pin (TF2 item)
Genuine Crafty Hair (TF2 item)
Genuine Genuine Area 451 (TF2 item)
Steam Community Beta Access (tradable)
Transcripted Level Demo (Steam key)
RIFT Storm Legion Beta (key)
Airmech Beta + 1000 Diamonds (key)
Firefall Beta (key)
SMITE Beta (key)