Level 3 is a sprawling complex of derelict maintenance halls and utility tunnels fitted with electrical machinery. Similar to other levels with instances of shifting geometry, the layout of Level 3 has been documented to gradually shift when unobserved, seeming to twist and connect in a senseless manner. This effect reportedly correlates with distance traveled, as its layout seems to increase in complexity the farther one travels from their initial entrance point. Despite its varying layout, Level 3’s architecture remains largely consistent, with wires, fluorescent lights, and various machines arbitrarily scattered throughout.