Bioshock is one of those game franchises that players point to when asked about games that have deeper messages and meanings. The first entry in the series was famously a meditation on the philosophy of Objectivism, popularized by Ayn Rand in the '40s and '50s. The third game is an amazingly bleak look at the idea of the mythologizing of American history and its cultish effect on those who are brainwashed by what can be regarded as propagandistic reconceptualization. Bioshock 2, on the other hand, tends to often be left out of the conversation rather unfairly.
Source：https://www.cbr.com/bioshock-2-utilitarianism-warning/
