Have (Keys):

• SOL: Exodus
• All Zombies Must Die!
• Cubemen
• Waves
• Shattered Horizon
• Analogue: A Hate Story
• Serious Sam 2
• Gundemonium Recollection
• Harvest: Massive Encounter
• Dungeon Defenders
• Containment: The Zombie Puzzler
• Data Jammers: FastForward
• Brainpipe - A Plunge to Unhumanity
• PixelJunk Eden
• Noitu Love 2: Devolution
• Auditorium

Want:

• Robin Hood: The Legend of Sherwood.
• Grand Thef Auto: San Andreas.
• Grand Thef Auto IV.
• Left 4 Dead.
• Left 4 Dead 2.
• Offers.

I can go first if you want :]