DS

Shin Megami Tensei: Strange JourneySecret Demons not found in normal play04/14/10

PC

Dungeon DefendersSecret Room in the Tavern10/24/11
Heroes of Might and Magic VFirst Enable your cheats in the game (Pre-Patch)08/25/06
Plants vs. ZombiesCodes05/06/09
Portal 2Singing Turrets04/20/11
Resident Evil 5Clear game bonus09/21/09
Starcraft II: Heart of the SwarmSwarm Cheats03/22/13
Warcraft III: Reign of ChaosVarious Cheat Codes07/07/02
Warcraft III: The Frozen ThroneCheat List07/02/03