A solid shooter with an awesome atmosphere.
Bioshock is mainly about choices. You can play through the game a certain way and do other things. So the choices you have are, you can either play through Bioshock with your guns and just shoot everything or you can use you plasmids, which are genetic modifications.
The plasmids in Bioshock allow you to do cool things like make fire come out of your hands or make two enemies fight, or shoot a swarm of hornets out of you bare hands.
You also have guns. You have the standard pistole, machine, and shot gun. You also have a grenade launcher, a chemical thrower, a wrench, a camera, and a cross bow. You can upgrade your weapons, and get different ammo for them.
In Bioshock you have two enemies that you fight. One is the Splicers, which are these guys the modified themselves and eventually went crazy. There are different kinds of Splicers. You have that basic Splicers, Spider Splicers which move faster and crawl around on the wall, and these Splicers that can be invisible and throw fire or ice out of their hands. The other enemy is the Big Daddy, which are these big creatures that walk around. There are two types of Big Daddies. One type carries around a shoot gun, and the other has a drill for a hand. The ones with the drill in their hand are the hardest to kill because the charge at you and back you up into a wall. It feels like you are fighting a bull.
Why do you go after the Big Daddies? The reason why you ga after the Big Daddies is to get the Little Sister. The Little Sisters are these weird little girls that go around and find corpses and harvest this thing called Adam. You need Adam to modify tour self and make you self stronger. When you kill the Big Daddy you have the choice to harvest the Little Sister in which you will get 160 Adam, but she will die, or save her and get 80 Adam and turn her back into a little girl, but you will get rewarded.
This mainly determines how the game ends. The one thing that sucks about this is that if you harvest one Little Sister than you get the bad ending. So if you want to get the good ending, then you need to save every Little Sister that you come across.
The graphics in Bioshock look really good except for one thing. This is the reason why I could not give it a 10. Every time you load your game, not all the textures on the items pop up. Usually this happens to the whole room that you start in. Every thing will look blank for a few seconds and then all the textures will pop in.
The sound in Bioshock sounds amazing. You hear water washing in for holes on the walls, and you hear people talking, and every time you hear a Big Daddy coming, you hear his hulking foot steps.
If you want an amazing fps that will keep you interested in the story with a bunch of fun game play, then you need to buy Bioshock!