A homeless hyperspatial collective-mind species that embeds itself across civilizations with Primal Engines.
Goff says thousands of Residual embodiments wait across Earth's surface for the crawl. They attempt to attract dungeon entrances, enter quickly, and pass knowledge to the new AI. Dungeon monsters and environmental hazards ignore them until the transfer, though the individuals still ultimately die.
The collective inhabits real local bodies and retains their memories without identifying as the host species. It is present in nearly every intelligent civilization with a Primal Engine and survived past extermination attempts and efforts to hide crawl locations.
Orren describes Residuals as a hyperspatial collective without a home that blends into other societies. He confirms both Goff and Agatha belong to the broad category but says they are different kinds. A current civil war divides the collective into two groups with incompatible aims.
Many ordinary people across different worlds linked by a faint hyperspatial neural web.
The collective attempts to preserve an ancestral AI communication lineage that crawl operators suppress or dismiss.