I got the game StarWars Knights of the Old Republic (as a gift) and I noticed from the first level that they were talking about aristocratic citizens and opressive leaders in the upper city. The indoor and outdoor architecture, with doom-shaped ceilings and curving corridors, seemed reminiscent of screenshots of duality as well. Aside from that there was mention of plagues that turn you into monsters, and syrums that were being kept from the public by the opressive leaders. It sounded a lot like the story from 8 19 but maybe I'm just crazy. I think I recall someone pointing out the presence of pfhor language being in the films. Maybe someone else of influence was a fan of marathon or double aught? Just a thought.