I have Silent Hill Homecoming, King Arthur the Roleplaying Game, CS: Source (though you have that as well but whatever), willing to trade with 2 x Portal 2, or Portal 2 + offer if you want.
Interested in any of these for Dota?
Braid, Cortex Command, Machinarium, Osmos, Revenge of the Titans,
VVVVVV, Crayon Physics Deluxe, Cogs, And Yet It Moves, Hammerfight,
Super Meat Boy, Shank, Jamestown, Bit.Trip Runner, NightSky,
Darwinia, DEFCON, Uplink, Multiwinia,
The Binding of Isaac, Blocks that Matter,
Magicka,
Ben There, Dan That! and Time Gentlemen, Please!,
Dungeons of Dredmor,
Fate of the World,
Gish,
Hacker Evolution:Duality,
Hacker Evolution: Untold,
inMomentum,
NightSkySaira,
Scoregasm,
Spacechem,
Your Doodles Are Bugged!,
Zombie Shooter 1,
Zombie Shooter 2.
The Chronicless of Riddick: Assault on the Dark Athena for Dota 2 - http://steamcommunity.com/profiles/76561198004806008/
Feel free to offer here.