One of the best games in gaming history, and my personal favorite.
The game takes you to an underwater utopia, called Rapture, which turned into another destination for horror lovers. The game follows a great story within Rapture which is full of interesting and mysterious characters which include your character as well. The graphics are impressively made and there is a focus around the water which looks amazing. The atmosphere is completed by whispers and arguments between splicers, flooded halls of Rapture, old commercial posters on the wall, private recordings of people who lived in Rapture, and the ghosts of past which show what went on in Rapture before you came.
The gameplay is very good, you are given a lot of weapons trough the game, which can use different ammo, and you are given a lot of plasmids as well, which are the best part of the game's gameplay. They change you genes, and make you fire lightning or fireballs which can be combined with traditional arsenal, some plasmids allow you to manipulate enemies or even turn the environment against them. To get more plasmids you have to collect ADAM which you can get by saving or harvesting little sisters which are protected by big daddies which are big and heavy enemies which are hard to kill, which is a good thing since you will fight junkies, called splicers, most of the time, which fight in group of 2 to 3 splicers at the time, which isn't really a challenge, since even if you die you will respawn in a closest Vita Chamber, and your enemies will still have the same amount of health they had when they killed you. ADAM can also be used to upgrade your health or buy tonics which improve your chances in fighting, hacking and makes you harder to detect by turrets and cameras in the game. However the Bioshock's biggest frustration is the repetitive hacking mini game, which becomes really boring after a while, although you don't have to do it, it enables you to get stuff cheaper or to take control over a turret, camera or a bot.
In the end the game is a creative masterpiece with great atmosphere, interesting story and fun gameplay, but it's not hard enough and the hacking game is just frustrating after a while.
Pros: Story, Atmosphere, Plasmids, Combat, Big daddies
Cons: too easy, hacking mini game