BioShock 2: Minerva's Den

The player assumes the role of Subject Sigma, another Alpha Series Big Daddy, as he travels through Minerva's Den, home to Rapture's Central Computing.

Minerva's Den is a single player downloadable content for BioShock 2. This additional campaign is a self-contained narrative experience that puts players in the role of another Alpha Series Big Daddy in a previously unexplored section of Rapture.
Minerva's Den shows another vision of Rapture within Minerva's Den, a high-technology center of the city, and explores the backstory of the Thinker, a supercomputer responsible for the control of many automatic devices and systems in the underwater utopia, and its creator Charles Milton Porter.