This game is extraordinarily blunt in regards to what to expect when you're playing it. Heck, it's right in the title! One can think of this game as a more serious Duke Nukem 3D, as though it sits somewhere between that game and Doom in terms of content. That's an extreme generalization of course. Actually, the game stands fairly well on its own accord... for the most part. There are some quirks which are kinda weird though.