Set in the world of Rapture, a underwater paradise turned into a twisted nightmare, BioShock pits you as a hapless bystander unwittingly delving into the history and politics behind this lost dystopian city. Luckily, the same powers that tore Rapture apart help you survive. Plasmids help you even the odds by supplying you with various interesting powers, like telekinetic fire or the ability to wield electricity. Of course, these only help so much when facing down a Big Daddy, one of several dangerous behemoths prowling the city, so it's a good thing you can also gobble together some lethal-looking guns to boot. BioShock's combat is intuitive and clever — using pools of water as electricity traps, shattering Splicers after freezing them solid — but the real hook is the eerie atmosphere that this game invokes.