Thief is one of those series that is hard to really explain. It's a game that by all accounts is a very simple concept. But when you step into the hooded persona of the main character Garrett, things aren't quite as simple as they seem. The AI is challenging, you'll have to weigh stealth vs. speed, decide when and where to use certain gadgets, find different routes down some difficult paths and all the time try to save the world as we know it. The third and upcoming addition, called Thief: Deadly Shadows (Eidos has decided to move away from numbering conventions as a whole), isn't really going to stray from the path, but is also trying to draw some more gamers into its dark and deadly world. It may sound a little confusing at first, but Warren Spector was in town to explain things to us, why certain things have been added, why others have been changed, and why, most importantly, he thinks the game is going to be so cool.