…ction system, and reinforced chassis rated for operation in tunnel environments. Arcturus originally designed it for military tunneling — creating fortified undergrou…

…ction system, and reinforced chassis rated for operation in tunnel environments. Arcturus originally designed it for military tunneling — creating fortified undergrou…

…ter serpentine automaton designed to pursue targets through tunnel systems, pipe networks, and confined spaces where humanoid or multi-legged platforms cannot operate…

The UT-1 is a 6-meter-long segmented tunnel-boring automaton originally designed for utility corridor expansion. Its front section houses a dia…

Cinderfall was incorporated in 2137 by the Mwangi-Kowalczyk industrial family, who had operated legacy steel mills in the Gary corridor for three generations…

…tion, routing certain high-value shipments through specific tunnels on specific days for reasons it cannot or will not explain. So far, VINE's instincts have an eeril…

…he bought them for their right-of-way deeds, easements, and tunnel licenses, then spent four years in corridor courts arguing that a network of sovereign transit infr…

…by financier Osric Vane purchased 112 bridges, three major tunnel systems, and a water treatment network between 2131 and 2136 at a fraction of assessed value. Vane'…

The Laminar Pursuit Frame is a single-occupant pursuit exo-rig designed for rapid urban interdiction. It operates on a distributed hydraulic tension system —…

…ces. A user who would otherwise experience trembling hands, tunnel vision, and decision paralysis under fire instead maintains steady aim, broad situational awareness…

…a fight-or-flight response, but without the shaking hands, tunnel vision failures, or post-surge crash that characterizes natural adrenaline dumps. The LP-7 componen…

…in a state of genuine calm, survive a firefight without the tunnel vision of panic, or push through physical exhaustion by deliberately engaging Flood. The nano-fiber…

…ng-Dao Bioelectric for navigation through the dense utility tunnel networks, fluid conduit systems, and bio-infrastructure channels that run beneath GLMZ's built envi…

# The Underworld Ecosystem ## What Lives in the Tunnels Below GLMZ, in the layered tunnel system that descends from the sub-basement level of the Shelf t…

# The Underworld Ecosystem ## What Lives in the Tunnels Below GLMZ, in the layered tunnel system that descends from the sub-basement level of the Shelf t…

…ld Strata ## A Geological and Archaeological Survey of the Tunnel System The Underworld beneath GLMZ is not one tunnel system. It is seven, layered one atop another…

…ld Strata ## A Geological and Archaeological Survey of the Tunnel System The Underworld beneath GLMZ is not one tunnel system. It is seven, layered one atop another…

…und a devoted secondary market among deep-sewer runners and tunnel-breach specialists who work in environments with chronically compromised air quality. Street medics…

The Pelagic Drift Submersible is a one-to-two occupant underwater transit vehicle developed by Ouroboros Energy for maintenance operations on their submerged…

…end into maintenance corridors, junction boxes, and utility tunnels without drawing inspection. Among GLMZ's sprawling underclass of infrastructure workers, electrici…

…ures, allowing it to flag patterns consistent with specific tunnel types, bunker construction methods, and buried infrastructure standards used by different factions…

…ater infrastructure — the drainage canals, flood management tunnels, retention basins, and tidal exchange channels that run beneath much of the city's lower districts…

…capable of navigating GPS-dark zones such as the Sub-Verge tunnels, shielded corporate campuses, and the electromagnetic noise floors of the Slag Markets. The drone'…

The Tandem Fold Microvan is Ringo Corponation's answer to GLMZ's chronic spatial scarcity — a compact urban transport vehicle built around a collapsible chas…

…sive underground infrastructure — storm drains, maintenance tunnels, abandoned transit lines, and DEAES tunnel networks. The kit includes a chemical light supply, wat…

…oids and hidden chambers in structures, and map underground tunnel networks from the surface.

…d 4mm thick. When placed on surfaces throughout a building, tunnel system, or urban block, the nodes self-organize into a low-power mesh network within ninety seconds…

The Faradaic Breach Stylus is a handheld electrochemical cutting and access tool developed by Zheng-Dao Bioelectric's industrial maintenance division, nomina…

…base far beyond its agricultural origins. Urban surveyors, tunnel runners, forensic teams, and environmental investigators all rely on it. Zheng-Dao has leaned into…

The Remora is a semi-autonomous underwater reconnaissance drone developed by Zheng-Dao Bioelectric, designed for operation in GLMZ's submerged infrastructure…

…le seismic imaging device that maps underground structures, tunnels, voids, and buried objects by analyzing the propagation of seismic waves generated by a compact th…

…the ground and detects vibrations from footsteps, vehicles, tunneling activity, and structural settling. The network's AI classifies detected vibrations — distinguish…

The Bore Rats are the Underworld's indigenous workforce — tunnel runners, excavators, salvagers, and guides who operate in the unmapped sections of the tunnel netwo…

…etwork of nineteenth-century bilge channels, flood overflow tunnels, and decommissioned water-treatment conduits that PALLADIAN CONSTRUCTION sealed off during the Lac…

…dent in the third decade of GLMZ's expansion: the Laceworks Tunnel Collapse of 2171, in which forty-seven neural-augmented construction laborers died when PALLADIAN C…

…Harbor's Sublevel 9 in 2181, when a PALLADIAN CONSTRUCTION tunneling project ruptured three legacy water mains simultaneously and submerged nearly forty blocks of in…

…ire layer of the city went underwater — warehouses, transit tunnels, industrial facilities, and the sealed vaults of businesses that didn't have time to relocate thei…

…have detailed mental maps of every accessible ruin, flooded tunnel, and collapsed structure within five kilometers of the lakefront. They know where the pre-collapse…

…critical smuggling corridor through Detroit's old salt mine tunnels — a network of passages running beneath the city that connects the waterfront to the interior dist…

…will hold and where it won't, how to shore up a collapsing tunnel long enough to extract what's inside. This knowledge lets the Reclaimed go where others can't, and…

…ive members that controls access to Chicago's abandoned CTA tunnel system. The trains stopped running decades ago, but the tunnels remain — miles of underground corri…

A silicon nitride–tungsten carbide structural ceramic developed as a direct replacement for construction-grade steel, offering comparable tensile strength at…

…h a quantum-engineered band structure that exploits quantum tunneling at macroscopic scale — specifically, its electron transport properties allow current to tunnel t…

…purposeful aggression — elevated strength output, sharpened tunnel vision, and pain threshold elevation of approximately 40%. Dravecor is the workhorse stimulant of c…

Drexaline is a synthetic catecholamine cascade accelerant that floods the bloodstream with a precisely titrated mixture of epinephrine analogues and norepine…

Focadrin is a selective attentional modulator that suppresses peripheral cognitive processing — ambient noise, non-threat stimuli, emotional interference, so…

Korrath is a dual-action compound that simultaneously floods the limbic system with a proprietary synthetic norepinephrine analogue while suppressing prefron…

Narrowcast is a selective attentional modulator that interfaces with BCI-adjacent neural pathways to suppress processing of non-threat stimuli while amplifyi…

…for brutal double shifts in the underground infrastructure tunnels. Long-haul runners take it for extraction ops that can't afford to let fatigue be a variable. Beca…

Tharcon is a selective attentional suppression compound that works by chemically downregulating the brain's peripheral processing networks while amplifying a…

Voraxin is an unlicensed compound synthesized in Shelf labs that combines a crude dopamine-norepinephrine reuptake inhibitor with a prefrontal cortex suppres…

Vorrathine is a dual-action compound that combines aggressive dopaminergic stimulation with targeted prefrontal cortex suppression, chemically dismantling th…

Ashfeld is where the middle class went to die slowly. The bungalow belt — that great swath of single-family homes built in the mid-twentieth century for city…

Tremont was Cleveland's art neighborhood. Now it is Ashfield, and the art has changed. The name comes from the ashite — a Gravemoss-derived bioite material t…

Benton Harbor and St. Joseph were always a study in American inequality -- two cities separated by the St. Joseph River, one predominantly Black and impoveri…

Port Huron sits where Lake Huron becomes the St. Clair River, and where the Blue Water Bridge connects Michigan to Ontario. In the old world, it was a border…

A decommissioned Metra transit hub buried forty meters beneath the Old Harbor district, its vaulted ceilings still wearing the oxidized copper cladding that …

Highland Park was already a city within a city — an incorporated enclave like Hamtramck, but without Hamtramck's community cohesion or economic base. When Ch…

…us around the city, honeycombing the bedrock with automated tunnels that the surface population tries not to think about. Northern Michigan University — one of the f…

Lakewood sits on a geological shelf above Lake Erie — a ridge of shale and sandstone that gives the neighborhood an elevated vantage point over the lake and,…

…op infrastructure persists — the pedway system, the freight tunnels, the sub-basements of buildings that predate the corporations by a century. This understructure is…

…nsit waypoint for the informal rail lines threading the old tunnel network. The lower concourse, visible through the water as a perfect preserved grid of cracked tile…

Morgan's Ridge occupies the southern end of the Beverly ridge — the same glacial moraine that gives Beverlynn Heights its elevation, tapering here into lower…

…ened, and draped in sensor arrays — and the Detroit-Windsor Tunnel form the two arteries connecting Canadian sovereign territory to the American corporate zones, and…

…oop transit interchange — a labyrinth of flooded pedestrian tunnels and former parking structures sealed off after the 2147 Lake Surge and never properly reclaimed. B…

South Calumet is where the old world died loudest. When U.S. Steel, Republic Steel, and Wisconsin Steel were running three shifts a day, the far Southeast Si…

Hamilton was built on steel, and steel is still what Hamilton tastes like. The foundries that lined Burlington Bay in the twentieth century have been replace…

…rthern stretch of The Shelf, accessible through maintenance tunnels, a handful of unofficial entry points, and one known surface entrance that most people who use it…

A sprawling subterranean civic ruin occupying the collapsed lower levels of what was once a Chicago municipal complex near the old Loop perimeter. Centuries …

…by the slow collapse and flooding of pre-Meridian municipal tunnels, drainage systems, and the basements of buildings long since swallowed by the city's expansion wes…

The West Side Market survived. That is the first thing anyone tells you about Ohio City, and it is both true and insufficient. The 1912 market building still…

…ng platforms, while below the waterline, pressurized access tunnels rumored to pre-date GLMZ itself snake through the silt.

A compressed industrial wedge squeezed between decommissioned Ringo Heavy Industries rail spurs and the eroded embankment of a long-buried canal, The Cinder …

…in 2147 and formally abandoned in 2161. Its four converging tunnel arms stretch outward under the city like compass points, each arm now claimed by a different factio…

…essible only by pressurized dive-lock or a corroded service tunnel whose entrance is hidden inside a decommissioned pumping station on the Evanston fringe, lies the D…

A decommissioned Ringo Heavy Industries foundry complex stretching across six city blocks in the lower industrial belt, its skeletal superstructure of corrug…

…n. Literally. The lower levels of downtown — the old subway tunnels, the RTA infrastructure, the sub-street utility corridors — are ungoverned space. Tollgate's juris…

North Lawndale was where Dr. King marched in 1966, where bottles and bricks met his call for open housing, where the arc of American racism bent but did not …

…me a shadow economy unto itself—smugglers use the submerged tunnels to move contraband between Shelf districts and mid-tier buyers in Old Harbor. Zheng-Dao Bioelectri…

A sprawling industrial terrace suspended between two decommissioned Ringo Heavy Industries smelting complexes along the southern lakefront, The Oxidian Shelf…

…in fragments — repurposed as service corridors, maintenance tunnels, and the unacknowledged infrastructure that keeps the towers breathing. The people who work down t…

…ow street level in a section of Chicago's abandoned freight tunnel system that was sealed during the Reconstruction and subsequently forgotten by every official datab…

…ow street level in a section of Chicago's abandoned freight tunnel system that was sealed during the Reconstruction and subsequently forgotten by every official datab…

The Undertow is accessed through a drainage outflow pipe on Milwaukee's lakefront that appears, from the outside, to be exactly what it is — a concrete pipe …

The Undertow is accessed through a drainage outflow pipe on Milwaukee's lakefront that appears, from the outside, to be exactly what it is — a concrete pipe …

A narrow corridor of pre-Meridian architecture preserved — some say imprisoned — within the megacity's northward expansion, the Vestige is a six-block stretc…

…eview board. Beneath the manicured surface, the park's old tunnel system — originally built for maintenance access to the Olmsted-era drainage infrastructure — has b…

…eeps everything. Suggesting someone is too low even for the tunnels

…ence between a shortcut and a trap is about three meters of tunnel. Warning about Underworld navigation

…ee: darkness and doubt. About the psychological toll of the tunnels

…e's. Practical and metaphorical advice about navigating the tunnels

…ason not to go. Advice given to newcomers curious about the tunnels beneath GLMZ

…ve buried and cannot admit. Psychogeographic reading of the tunnel system

…es and incorporating their code. Maintenance workers in the tunnels report systems activating without commands, drainage patterns changing overnight, and the persiste…

…s. She knows every alley, every shortcut, every maintenance tunnel in GLMZ. Her chassis is modified for speed — lightweight, aerodynamic, with legs that can sustain a…

The RamJet CV-9 is Arcturus Defense Solutions' primary tactical ground vehicle platform, an eight-wheeled armored personnel carrier designed specifically for…

The ConduitStrike VX-2 is a deep-bore thermoelectric energy extraction system engineered specifically for GLMZ's Great Lakes basin geology, exploiting the su…

An autonomous tunneling platform the size of a freight train that navigates underground terrain using ground-penetrating…

The ThermoVault GX-3 is a deep geothermal energy extraction system designed for urban subsurface installation in GLMZ's geological context — specifically opt…

The HarbourSkate MX-40 is a fully autonomous, track-bound magnetic levitation cargo sled designed to operate within GLMZ's submerged and semi-flooded lower-t…