GameSpot writes: "BioShock was an artistically daring game that explored a lot of mature themes, but among the most important was the idea that utopian societies don't tend to stay utopian for long. And as anyone who played BioShock knows, Rapture certainly fit that bill. This once beautiful underwater city was founded by Andrew Ryan as a place for people to pursue their own self-interests without the slightest trace of government or religious authority, but greed and unchecked scientific research soon created a population of citizens whose addiction to genetic alterations drove them to the fringes of sanity. In the upcoming sequel, you will have the opportunity to see the downfall of Rapture from both ends of the BioShock timeline. The single-player campaign is set 10 years after the original and explores what would happen to the city if left festering for another decade, while the multiplayer side will look at Rapture a year prior to the first game to see what people were like during that initial slip into madness".