[H] Half-Life Games, SpaceChem, Tropico Trilogy [W] Games

Have:

Half-Life 2: Episode One (Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life Deathmatch: Source, Half-Life 2: Episode One) x2

Half-Life x2

Half-Life 2 x2

Half-Life 2: Episode One (Episode One only) x2

Half-Life 2: Episode Two x2

Tropico Trilogy (Tropico 3 - Steam Special Edition, Tropico Reloaded, Tropico 2: Pirate Cove, Tropico 3: Absolute Power)

SpaceChem

Want:

Magicka Collection

Killing Floor DLC

Deus Ex Human Revolution DLC

Other games

P.S. Also I'll exchange all of them for one or two new games like Saints Row 3, Deus Ex HR, TES 5 Skyrim etc. (if it's possible :) )