well so far in class we've gone over 'gothic elements' which are in all gothic texts and are:
subterranean space, decay, dwarfing of man, liminal space (blurring the lines between things such as light and dark, good and bad etc) Ambiguity, Social anxieties, Supernatural events, Suspenseful atmosphere, confronting, disturbing themes and being trapped or controlled.
I like to believe that Bioshock has all of that.