BioShock takes place in an alternate-reality 1960s, in which a segment of humankind nestled itself far underwater in a utopian sea lab. However, the sea lab begins to crumble, even as genetic mutation brings the populace of the place to the brink of extinction, or complete metamorphosis. After your plane crashes into icy uncharted waters, you discover a rusted bathysphere and descend into Rapture, a city hidden beneath the sea. Constructed as an idealistic society for a hand picked group of scientists, artists and industrialists, the idealism is no more. Now the city is littered with corpses, wildly powerful guardians roam the corridors as little girls loot the dead, and genetically mutated citizens ambush you at every turn. The object is simple: Escape!
Playing the role of Jack this game is a first person shooter with a number of unique elements. The big one of these is the use of the 70 or so different plasmids which gives Jack special abilities such as changing his appearance, giving him powers such as fire, electricity or telekinesis among others. Jack is also able to hack into systems such as weapons and security cameras through a mini-game similar to the classic Pipe Dream. To add longevity to the title, and indeed increase the replay value, there are three different endings for the game depending on your performance.