I like the idea. There are only two things.

1: I don't think we want the reason the Visha fell to be summed up in one app by one specific player's backstory.

2: Though we call them dwarfs, they are dwarfs in the sense that they are materialistic and live underground. They aren't "Little people" though. They'd be normal sized and somewhat Elven, just with the one-with-nature wisdom replaced with cold, technological Nietzschism.