Thief: The Dark Project
Looking Glass Studios
"...if you know where to look, you'll see traces of Thief's legacy everywhere. It's in the shadows of Splinter Cell, the air of Amnesia, the DNA of Dishonored. It's in any game where darkness is your friend, where you can lean around corners, or as a former Thief designer once explained to me, where you save the world "by looking evil squarely in the crotch".
There are countless ways in which Thief could lay claim to being of the most important and influential games ever made. But I don't want to talk about legacy. Instead, I want to tell you why you should play Thief right now. Many games owe a debt to it, but there's still nothing like the original."
- Rick Lane, Eurogamer