I can give you 3 TF2 keys for Infestation if you like

Deadlight for Mark of the Ninja.

I'll trade you Sanctum(steam gift), my 2 Organ trail cards, and my FTL background for Infestation :)

Saints Row 2 (Tradeable Gift) for Sniper Elite: Zombie Army?

Serious Sam HD: Double Pack Starvoid, Toki Tori, Doom 2, Final Doom, Rome Total War, The Ship, Sniper Ghost Warrior Gold Edition interested in any of those? Maybe we could work out a combo or something.

Skulls of the Shogun + Zeno Clash game key for your Sanctum 2 and Giana Sisters: Twisted Dreams

Superbrothers: Sword & Sworcery worth anything to you?

Maybe paypal for Sanctum or anything from my offers? Greets!
http://www.steamtrades.com/trade/jWSLy/hship-waves-menofwar-painkiller-shado-path-shattered-horizon-w-zeno-2-sanctum-2

crusader kings 2 for war of the roses

I can give you a dota 2 treasure key + some cards for mark of the ninja.