So what is Frictional's opinion on Metro 2033?

[Mina Darsh]

Well, it was more like, when I got to the library, they said about the monster named the Librarian: "Don't run, but don't attack either, if you look them in the eye long enough, they retreat." I was like: "Oh crap..." Also I really hate the Lurkers! What I mostly loved and what created the tension mostly is that you mostly had a rather poor or no indication that an enemy was coming, sometimes they were on top of you without realizing.