“We're huge, huge fans of the 'Dark Souls' games, and there's something about whe…” — Matt Duffer

We're huge, huge fans of the 'Dark Souls' games, and there's something about when you're playing 'Dark Souls.' Immediately when you're in that world, it was to do with the imagery, it has to do with the sound design, and you're just immediately very uncomfortable and on edge. We wanted you to feel that way when you're in the Upside Down.

Matt Duffer .