Z09MEDIUMSHALLOW UNDERCITYLevels 4–8

MAINTENANCE TUNNELS

The seam between civilian and Helixion infrastructure.

The cables here are labeled. Further in, they're not. The emergency lighting flickers like it can't decide.

OVERVIEW

The mesh's physical nervous system runs through these walls. Cables bundled and labeled at the residential end — wild and unlabeled further in. The concrete changes quality as you go: newer construction meeting older, corporate-spec ducting meeting civilian improvisation. Emergency lighting flickers. The ventilation sounds like breathing. This is where the city's infrastructure becomes legible, if you know how to read it — which is exactly why Helixion patrols these tunnels, and exactly why certain people have memorized all the routes that avoid them.

ATMOSPHERE

SOUND

Cable hum, ventilation, occasional footsteps

SMELL

Ozone, dust, copper

LIGHT

Emergency lighting, flickering

KEY LOCATIONS

  • Residential Access
  • Junction Hub
  • Surveillance Section
  • Worker Rest Station
  • Tool Closet
  • Forgotten Graffiti Sections

NOTABLE NPCS

  • Rivet
  • Dagger
  • Nil

FACTIONS

  • Helixion
  • Iron Bloom Resistance