BioShock 2 is a first-person shooter developed by 2K Marin and released in 2010. Set several years after the original game, the story returns players to the underwater city of Rapture. You play as Subject Delta, a prototype Big Daddy searching for a lost Little Sister while confronting a new ideological threat. The game refines combat by allowing simultaneous weapon and Plasmid use, creating more fluid battles. With moral choices, atmospheric storytelling, and enhanced mechanics, it expands the universe of BioShock.