Eurogamer writes: "How do you make a sequel to the illusion of choice? However the developers of BioShock 2 chose to approach the production of their watery follow-up, they were destined to begin just as trapped within the framework of its narrative inheritance as the former citizens of Rapture are within their rusting cage at the bottom of the Atlantic. Such was the power and significance of that defining encounter with Andrew Ryan two thirds of the way through the original BioShock.
BioShock was very much about Ryan - a philosophical idealist who built a city at the bottom of the ocean to house people "for whom work is our wage", where no god or government could find or tax or spite them. BioShock 2 shifts from one extreme to another, exploring the circumstances that drew psychiatrist Sofia Lamb to the city and the role she then played in Ryan's downfall. The two ideologues don't have much in common, but they do both act as catalysts for the events that befall the rest of the cast, of whom you are one, while another is a little girl named Eleanor."