BioShock is a shooter unlike any you've ever played, loaded with weapons and tactics never seen. You'll have a complete arsenal at your disposal from simple revolvers to grenade launchers and chemical throwers, but you'll also be forced to genetically modify your DNA to create an even more deadly weapon: you. Injectable plasmids give you super human powers: blast electrical currents into water to electrocute multiple enemies, or freeze them solid and obliterate them with the swing of a wrench.
A fantastic blend of First Person Shooter mechanics and RPG elements.
Bioshock is rife with incredible atmosphere, excellent voice-acting and top-notch graphics. The story is exquisitely detailed, thought provoking and very deep, with a conclusion that left me surprisingly satisfied (Even though others vomited in disgust), something that is surprisingly rare for a first person shooter.
My only complaint is that it is insanely easy, even on harder difficulties, what with there being food and energy bars literally bursting out of the foundations and a Regen-system that spawns you not far off from where you had died.
While there are other flaws and some graphical hitches, Bioshock is sure to please anybody who gives it a try :)