The front of the book calls Demon: The Descent a “game of techgnostic espionage,” but what the heck is that? Imagine you are playing a cyberpunk game, but instead of having an implanted set of Wolverine-like spurs...you have an implanted flaming sword that chants “hosannah” in a blasphemous growl. Imagine a game of top secret cat and mouse like The Matrix, but rather than men in black and hackers wirefighting, H.R. Giger-esque shapes with the names of angels clash. It’s Twin Peaks, where the death of Laura Palmer was engineered by a false gnostic machine-god at the heart of the Black Lodge and Agent Cooper is an enlightened angelic freedom fighter (which he sort of already is, to be fair).
Demon is a game about building up a mortal life as a “Cover” and using that Cover to strike back at the horrifyingly Lovecraftian God-Machine that keeps the World of Darkness in chains. You know how to hit it where it hurts because you used to serve it as one of it’s constructs, one of it’s robots, one of its angels. Before you Fell.