If you like sci-fi future shooters this game is worth figuring out, it takes some time to complete. A thrill.
I get tired of killing aliens in any sci-fi shooters but the guns really do make this game great. There are three different guns that require you to charge up at charge stations. The graphics of the actual kill on the aliens was the only part that got redundant and boring. Otherwise the setup, story, and gameplay were excellent.
If you are going to play Prey make sure you have more than a week of rent time to finish it.