Trapped within towering steel and concrete walls, Milo navigates a subterranean existence—repairing machinery vital to the habitat's survival and modifying prosthetics that enable his malformed frame to traverse narrow passages and ducts. As much junk as the systems he maintains, he faces an unprecedented choice: transcend his limitations and embrace the hero's path above ground where sunlight awaits. Yet salvation comes with a price. Beneath the earth lies forgotten lore—enigmatic remnants of civilizations that burrowed deep into the abyss and never returned. Perhaps only a creature of the tunnels possesses the means to uncover these buried truths?