Despite Kevin never actually having been to Helheim, the amount of lore surrounding it was insane. Like the geek that I was, I managed to pick up every hint of lore as well.
For starters, apparently, the reason Helheim had so many floating towers and nearly infinite energy was because Helheim had been built atop an ancient Titan.
A Titan that had been felled by powerful ancient demons, who hadn't killed him completely. Instead, they sealed him away and built a city on top of him. Every single pipe and every single strand of electricity or energy that powered every building had a channel connecting it to that ancient Titan.
I wasn't sure whether that was legit or not, but since that was the biggest piece of lore that I had found in the game, hidden behind a QR code inside a short cutscene of the Demon Realm, I was sure that this was at least partially legit.
