Really fun game...too bad it only lasts for 10 hours!
As for the game itself, it looks great and the sound is top-notch. They did a great job with making it feel like you a truly lost on a planet because the scale of the game is massive. As for the weapon choices, there are not that many to choose from but they are all so diverse that there really is not a need for more weapons; plus each also has a alternate fire which is usually something completely different for the regular shot fired by that gun. One downer is that you need to progess through the game pretty far before most of these weapons will be available to you. The AI is nothing really to scream about, they will either throw a grenade, duck for cover, or try taking shots at you. It's not the worst AI I have ever seen by any means but I did feel like I was getting way too many open shot where the enemy was not even moving. There is a nice variety of enemies however and you have to apply different techniques to bring them all down. By far the most interesting in innovative concepts for this game are the gravity walks and portals. Just as both of the names imply these devices allow you to defy gravity by walking upside down on roofs, walls or just pretty much any surface. It's really fun to shoot an alien from the ceiling when he doesn't even know you are there ( I just hope you dont have motion-sickness because it really messes with your perception. ) Portals are the same way, you jump in one and just like that you are in an entire new place; it's really fun to toss a bunch of Crawlers (grenades) in the portal and see what happens. My biggest complaint about the game is that it is just too easy and short, I finished in about 10 hours. On top of that there is no game over screen, instead you going into another realm shoot some flying things for health and in about 20 seconds pick up right where you left off. Still, the 10 hours I did get out if it were a blast.
Multiplayer seems like it was an afterthought to the developers. The levels don't seem like they had multiplayer on the brain much when they were made; although the gravity belts and portals make things a bit more fresh but it just didn't keep me interested for very long at all. On top of that there are some very bad frame rate issues that need to be addressed. I was looking for a game to stop playing Call of Duty 2 online for but I think Prey compares to Perfect Dark Zero's multiplayer better.
One thing to remember is this game is rated M and contains some serious gore and adult situations, so if that is no something you (or you children ) are interested in then steer clear of this game. All in all, I say give this game a rental and try it out. You will find it won't take you long to blow through it but who knows the game may grow on you.