Well, here's my short list (In no particular order)
Realms of the Haunting
System Shock 2
Thief: The Dark Project
Thief II: The Metal Age
Thief: Deadly Shadows
Morrowind
Rollercoaster Tycoon
Divine Divinity
Star Wars: Knights Of the Old Republic
Star Wars: Jedi Knight, Jedi Academy
Edit: Why in the world has nobody mentioned the famous Thief games, yet? Am I the only fan of the series left on the board?
