While the graphics are on par with Doom and the game play is entertaining, what could have been a solid FPS has been ruined by buggy code. The frame rates are a major problem in this game. When people compare it to a slideshow, it is not an over exaggeration as it does get that bad if you are near a couple of enemies. The game also suffers from freezing problems, mostly when loading a new map. This makes me feel like the game was rushed out the door without the needed time for testing and debugging. For $60, this is unacceptable. The bonus disc, which contains Quake II and features about the making of Quake IV, was a nice touch.If you are not a Quake addict and in dire need of a solid FPS, I would recommend Prey. Its graphics are on par with Doom and Quake, there are no freezing problems, and it is evolving FPS game play.