One of these keys:
Alien Breed 2: Assault
Alien Breed 3: Descent
Anomaly: Warzone Earth
Avadon: The Black Fortress
BRAZEN Prototype
Broken Sword 2: The Smoking Mirror
Cargo! The Quest for Gravity
Cogs
Commander: Conquest of the Americas
Cryostasis
Death to Spies: Moment of Truth
East India Company
Elven Legacy
Europa Universalis: Rome - Gold Edition
Fantasy Wars
Future Wars
Hearts of Iron 2 Complete
Insecticide Part 1
King's Bounty: The Legend
Knights of Honor
Lead and Gold: Gangs of the Wild West
Majesty 2
Men of War
Men of War: Red Tide
NecroVision
NecrovisioN: Lost Company
Reign: Conflict of Nations
Serious Sam Double D
Serious Sam: The Random Encounter
Star Wolves 3: Civil War
Superbrothers: Sword & Sworcery EP
The Kings' Crusade
Worms
Worms Pinball
XIII Century – Gold Edition
Zen Bound 2
Dota is restricted in China.