Make an offer via PM.

The Bureau: XCOM Declassified
BioShock
I Have No Mouth, and I Must Scream
System Shock 2 (x2)
Deponia
Alpha Prime
Fish Fillets 2
Shadow Warrior Classic Redux / Duke Nukem 3D: Megaton Edition
Serious Sam HD: The First Encounter
Serious Sam HD: The Second Encounter
Intrusion 2
Daikatana
Mini Ninjas
Hitman 2: Silent Assassin
Hitman: Codename 47
Thief Gold

I have two invites to sell (third one is for my friend). Make a offer via PM.

Proof #1, #2