[H] Portal 1 & 2, Cogs, HL2: EP1, Day Of Defeat, Counter-Strike: CZ [W] Orcs Must Die! 2 or Offers

any of these for your HL2 Episode 1: Sanctum, The Ship 2-pack, game keys: (Beat Hazard Complete, Sol Survivor, Fractal, Toki Tori, Really Big Sky, The void, Rig N'Roll, Reign: Conflicts of Nations, Theater of War 2)

Sniper Elite for CS:CZ? or Serious Sam HD: The First Encounter for CS:CZ + DoD?

Hl2:EP1 for red faction guerilla or terraria?

Dear Esther, Sniper Elite, Magicka, or Terraria for CZ?

Trine for Portal?