Location from Poppy Playtime by MOB Games
The factory's service infrastructure — cramped, dark, and the only network that connects all areas without going through the places the experiments control.
The maintenance tunnels run through the factory like a circulatory system — every major section connects to them, and they connect to each other. They were designed for workers, sized for workers, lit for workers who knew where they were going. Navigating them without that knowledge is its own problem. They are not safe. Mini Huggies move through them in numbers. But they are safer than the main halls, and they are where the Last Witness has survived. The tunnels have their own archaeology: personal items left behind, notes scratched into pipe covers, a calendar stopped at a specific date. The workers who serviced these routes left more of themselves here than anywhere else in the building.
Low ceilings, exposed pipes and conduit, chain-link internal fencing, emergency lighting that activates at intervals. The kind of space where workers bent to fit. Markings still visible: color-coded pipe labels, maintenance schedules, names of the people who worked these routes.
Also known as: Maintenance Tunnels, Service Tunnels, the Crawlways