This game brings to light all the things that made older games fun. Lots and lots of shooting and a variety of enemies and weapons that made every single level more and more entertaining. I'd recommend this game to any fans of oldschool FPS's (think Doom, Duke Nukem, Quake, etc.). The also includes the expansion pack, which makes it an even better deal. A great way to spend 10 bucks to keep you entertained for weeks!