BioShock 2 is a developed by and published by . It is the sequel to the 2007 game and was released worldwide for , , and on February 9, 2010; released an version on March 30, 2012. Set in the fictional underwater city of , the game's story takes place eight years after BioShock. Assuming control of Subject Delta, a hulking , players are tasked with fighting through Splicers, the psychotic human population of the city, using weapons and an array of genetic modifications. The game also includes a story-driven multiplayer mode that takes place during Rapture's civil war, before the events of the first game.
BioShock 2 was chiefly developed by , with , , and providing additional support. The story received major changes over the course of development. , the composer of the first game, returned to create the score for BioShock 2.
The game received positive reviews upon release, with praise directed at the game's narrative, art style, characters, ending and gameplay. However, the game attracted criticism for having a slow start and being too similar to its predecessor. The game was supported with upon launch, and a new single-player campaign, titled , was released in August 2010. The game sold more than 3 million copies, but did not meet the publisher's sales expectations. A remastered version of the game was released as part of for Windows, , , and .