First watch this review.
http://www.escapistmagazine.com/videos/view/zero-punctuation/333-Dead-SpaceNow I just have to say this review almost fits but there are a few things wrong with it.
First the game is not so much a rip off of Event Horizon as it is of Doom 3. In fact put Doom Marine on the Ishimura and he'll feel right at home complete with the crazy scientist who really wants everything to happen...
The weapons are massively overpowered or truly pathetic. All you ever need are the Ripper and the gun you get at the start, the cutter. The cutter is like most FPS's sniper rifle combined with a shotgun when upgraded even a little bit and the ripper is like a more powerful shotgun combined with a chainsaw. The other weapons are garbage but don't worry about ammo for only two weapons because the game knows which guns you are carrying and everything drops ammo only for those guns. You only need to buy ammo for the game's two major boss fights which are clearly marked....
The major problem with the game is the fact that you know whenever a monster is going to pop out because the music pipes up. The only really scary parts are the zero g no air because there is no sound and the monster can come from anywhere. The hardest parts aren't the fights with the monsters but the puzzles.