Hello, I also have some thoughts about thoughts and influences of the game.
I have not played the game at all but I've seen people play it. Different people on different occasions and with slightly different results. However I believe that I've got a overall good overview of the game and the story as well as some of the lore.
Now I have scoured this forum a little bit, aswell as other sites (maybe not thorough enough?) for actual Inspirations and Influences behind the game. I saw something on a FAQ about influences from some older games and what not but nothing (that I've found) that feel solid enough.
Thing is that ever since I started to watch the gameplay etc. I have felt that the story have a striking resemblance to (atleast) some elements of Aldous Huxleys novel "Brave New World". Not to mention the similiarities like the fictional drug 'SOMA' or the name of the resident castes "Alpha", "Beta" (where the "real" humans live) and the other three (Gamma, Delta, Epsilon = worker quarters). Also the idea that everyone lives a (sort of) happy and enjoyable life, or are forced to anyway.
I also think that there might be a source of inspiration from the philosophy of Body & Mind Dualism by the likes of René Descartes.
Maybe or maybe not. But that's why I've written this Post. Hopefully someone can shed some light on the matter? I would really like to know!