Prey is a pretty good first-person shooter. It looks good, has some interesting features and is mostly fun to play. It is a pure shooter, you run around by yourself and shoot everything that moves. You can't hurt anything you aren't supposed to. You can't get to places you aren't supposed to or even go directions you are not supposed to. The weapons are the standard ones: gun, machine gun, grenade, rocket launcher, etc. They have been dressed up in alien clothes but they are the familiar guns you are used to. If you liked Doom, Quake, Fear, etc. you will feel right at home and enjoy this one. FYI - I didn't play the multi-player at all, just the single player game.
It has several gimmicks, one is the native American thing which comes across pretty goofy, its really just an excuse to give you special powers. Hey, in Doom you were half-badguy and got special powers, in Fear you were the brother and got powers, In Pariah you were infected with the virus and got special powers, in this one you are a Native American and get powers. I found the powers themselves pretty useless and obvious. The spirit walk thing was kind of fun but got so obvious and tedious after a while. Stuck on a ledge? You can be sure there is an invisible spirit bridge (why?) that will lead you to the switch. There is a bow and arrow you can shoot while in spirit form but I never did, there didn't deem to be any point.
Other features of the game are the "walk on walls" and "portals". Both were fun but nothing standout. The walk-on-walls thing was primarily a problem solver. Can't get over the fence? you can bet there is a way to flip gravity so you can walk on the ceiling and then flip back. The portals are magic doors that open in thin air and allow you or enemies to walk through. This makes level design easy, you don't need to worry about rooms with enemies, just have them appear wherever you want. It makes for some frantic moments as the enemies pop in wherever they want to. Fortunately they are sent in at a slow pace so its pretty easy to kill them..though I did die a lot as they are pretty good shots.
The death thing turned out to be the worst part of the game for me. The idea sounds good: when you die, instead of having to reload and go back through an area you have already conquered, you go into the afterlife for a few seconds and then get your body back "in the exact same place". In practice it took all of the tension away from the game. No longer did I have to worry about anything, during the ending sequence I probably died 100 times but it didn't matter. By the end I wouldn't even dodge their shots, as I just regenerated right where I was with new health and they were dead. I found it boring to stand in the afterlife waiting for my body to drop. This is an interesting idea but needs a lot of work I think.
The game itself looks good, the metal looks like metal, the alien ship you are in keeps getting larger and larger in scale. It has some really amazing-looking levels. I did find that it tended to drag during the game though. The plot was interesting. I don't think the aliens-conquering-earth plot has been overdone, this game shows that there is still a lot of life left in it. Like most shooters though, nothing much happens. The screens show the exact same images of the Earth being absorbed throughout the game, the radio announcer is funny but seems so out of place. The storyline with Jen was interesting and twisted differently than I expected. I also thought the ending was decent - had a good sequence of boss battles and an interesting ending. I guess thats about all you can ask from a shooter game.
In summary: It was fun, looks good - through repetitious. The gravity thing and portals are fun to experience, the music sounds good and it has a decent story. Plus it never crashed on me once. That makes it pretty good in my book.