Crucible Industries DeepGreen Oceanic Carbon Sequestration
environmental
Arcturus Defense Solutions ChemoShield BX-2 Dermal Toxin Barrier Implant
augmentation
Arcturus Defense Solutions Autonomous Combat Decision Network
defense
Arcturus Defense Solutions IronGait MK-6 Tactical Exo-Carrier Platform
transportation
Arcturus Defense Solutions NeuroBlock SV-5 Selective Pain Suppression Implant
medical
Arcturus Defense Solutions RamJet CV-9 Armored Personnel Carrier
transportation
Arcturus Defense Solutions Neural Interrogation Framework
surveillance
Arcturus Defense Solutions TacMed StasisShell MSS-4 Metabolic Suspension Capsule
medical
Arcturus Defense Solutions Tactical Exoskeleton Platform
defense
Arcturus Defense Solutions Threat Prediction Neural Network
defense
Arcturus Defense Solutions SentinelSkin VS-4 Embedded Structural Acoustic Surveillance Membrane
surveillance
Axiom Systems Autonomous Economic Modeling Agent
computing
Arcturus Defense Solutions Urban Camouflage Architecture
defense
Axiom Systems Consciousness Transfer Interface
neural_interface
Axiom Systems Automated Censorship Infrastructure
communications
Axiom Systems Deep Learning Social Graph Engine
surveillance
Axiom Systems Diaspora Behavioral Integration Layer
computing
Axiom Systems Distributed Consciousness Architecture
neural_interface
Axiom Systems Predictive Content Generation Engine
communications
Axiom Systems Emotional State Broadcasting Protocol
neural_interface
Axiom Systems Emotion Recognition and Analysis Network
surveillance
Axiom Systems Memetic Warfare Platform
computing
Carrion Defense Works Adaptive Camouflage Skin
defense
Axiom Systems Predictive Social Modeling Engine
computing
Axiom Systems Reality Overlay Consensus Layer
entertainment
Axiom Systems Universal Surveillance Integration Platform
surveillance
Carrion Defense Works Autonomous Forensic Analysis System
computing
Carrion Defense Works Autonomous Perimeter Defense Ecosystem
defense
Carrion Defense Works Autonomous Wound Treatment System
medical
Carrion Defense Works Autonomous Mine Clearance System
defense
Carrion Defense Works Psychological Operations Broadcasting System
defense
Carrion Defense Works Tactical Deception Network
defense
Carrion Defense Works Bioweapon Detection Lattice
defense
Dredge Mining Collective Autonomous Resource Survey Platform
materials
Cradle Deceleration System
transportation
Cinderblock AI GazeNet PX-11 Predictive Crowd Behavior Analytics Platform
surveillance
Carrion Defense Works Tactical Pheromone Communication System
communications
Dredge Mining Collective Geothermal Tap Network
energy
Dredge Mining Collective Deep Earth Autonomous Excavation System
manufacturing
Dredge Mining Collective Rare Earth Element Synthesis
materials
Dredge Mining Collective ConduitStrike VX-2 Deep Aquifer Thermoelectric Tap
energy
Goliath Security Platform
security
Dredge Mining Collective Underwater Resource Extraction Platform
manufacturing
Dredge Mining Collective ThermoVault GX-3 Geothermal Tap System
energy
Helix Biosystems Anti-Aging Skin Treatment
medical
Helix BioSeal Mk.VII Hemorrhage Arrest System
medical
Helix Biosystems Chimeric Organism Design Framework
biotechnology
Helix Biosystems Accelerated Bone Grafting System
medical
Helix Biosystems Engineered Symbiotic Organism Platform
biotechnology
Helix Biosystems Microbiome Engineering Platform
biotechnology
Helix Biosystems LymphoDrain CX-3 Automated Lymphatic Assist Sleeve
medical
Helix Biosystems CRISPR-Omega Gene Editing Suite
biotechnology
Helix Biosystems MyoStrand CR-400 Synthetic Muscle Fiber Bundle
augmentation
Helix Biosystems NeuroSalve Cortical Repair Gel NR-2200
medical
Helix Biosystems Neural Tissue Regeneration Protocol
medical
Helix Biosystems OculaRegen CR-5 Corneal Reconstruction Film
medical
Iowan Behemoth Agricultural Platform
autonomous_agriculture
Ironclad Agrisystems Atmospheric Remediation Nanite Cloud
environmental
Helix Biosystems Synthetic Blood Platform
medical
Helix Biosystems Synthetic Organ Fabrication Platform
biotechnology
Ironclad Agrisystems BioGas Reclaim XT-8 Anaerobic Digestion Cogeneration Module
energy
Ironclad Agrisystems Desalination Membrane Technology
environmental
Ironclad Agrisystems Soil Remediation Microbiome
environmental
Ironclad Agrisystems Vertical Hydroponic Mega-Farm
agricultural
Ironclad Agrisystems VertiRoot VX-22 Closed-Loop Hydroponic Column
environmental
Ironclad Agrisystems Synthetic Protein Fabrication
agricultural
Kelpline Logistics AquaReclaim DF-9 Greywater Cascade Purification Unit
environmental
Kelpline Logistics HarbourSkate MX-40 Magnetic Levitation Cargo Sled
transportation
Kelpline Logistics TideRunner FR-12 Amphibious Surface Effect Shuttle
transportation
Kelpline Logistics AquaSpine DS-3 Submersible Urban Transit Tube
transportation
Lazarus Pharmaceuticals Longevity Monitoring Implant
medical
Lazarus Pharmaceuticals HemaForge RX-7 Synthetic Blood Suspension
medical
Lazarus Pharmaceuticals Cognitive Enhancement Compound Series
medical
Lazarus Pharmaceuticals CoagCascade DX-11 Disseminated Clotting Reversal Agent
medical
Lazarus Pharmaceuticals Rapid Wound Closure Nanite System
medical
Lazarus Pharmaceuticals Neurochemical Optimization Protocol
medical
Lazarus Pharmaceuticals Pain Management Neural Implant
medical
Lazarus Pharmaceuticals SomnaGraft-9 Neural Sedation Patch
medical
Mass Driver Accelerator
transportation
Novafold Pharmaceuticals GraftSkin TS-7 Bioprinted Dermal Replacement Sheet
medical
Lazarus Pharmaceuticals Telomere Regeneration Therapy
medical
Novafold Pharmaceuticals VascuPrint DP-3 Vascular Graft Bioprinter
medical
Novafold Pharmaceuticals ImmunoVeil TX-4 Rejection Suppression Protocol
medical
Ouroboros Energy Ambient Thermal Harvesting Grid
energy
Ouroboros Energy CascadeCell Mk.IV Supercapacitor Array
energy
Ouroboros Energy Atmospheric Carbon Capture Network
environmental
Ouroboros Energy Atmospheric Water Extraction Network
environmental
Ouroboros Energy SolonMesh UR-9 Urban Photovoltaic Skin
energy
Ouroboros Energy Micro-Fusion Reactor Platform
energy
Ouroboros Energy PiezoCore LD-5 Pedestrian Kinetic Harvesting Grid
energy
Ouroboros Energy VoltCarriage EC-9 Inductive Roadway Transit Pod
transportation
Ouroboros Energy ThermalSink UR-3 District Waste Heat Exchange Network
environmental
Ouroboros Energy Wireless Neural Interface Charging
energy
Palladian Construction AeroSkin BX-14 Adaptive Building Envelope
environmental
Ouroboros Energy Wireless Power Distribution Grid
energy
Palladian Construction MagRail Spur MRS-17 Elevated Micro-Transit Chassis
transportation
Ringo Corponation SlipThread MX-3 Urban Cable Micro-Mobility Rig
transportation
Ringo Corponation EchoLimb PR-9 Proprioceptive Feedback Prosthetic Interface
augmentation
Ringo Corponation DriftPack RV-6 Personal Vectored Thrust Harness
transportation
Saltmarsh Telecom AtmoVolt CV-1 Atmospheric Capacitive Energy Harvesting Antenna
energy
1 / 3
Zheng-Dao Heavy Industries Subterranean Transit Network
A network of high-speed transit tubes buried 200-500 meters beneath GLMZ's surface, using magnetic levitation and vacuum sealing to propel passenger and cargo pods at speeds exceeding 1,000 km/h. The STN connects major corporate facilities, government installations, and upper-tier residential districts through a transportation system that bypasses surface congestion entirely. The tunnels were excavated by DEAES autonomous boring systems and lined with reinforced materials capable of withstanding the geological pressures at depth. The network is invisible from the surface — most GLMZ residents do not know it exists.
nameZheng-Dao Heavy Industries Subterranean Transit Network
brand nameZheng
product nameZheng-Dao Heavy Industries Subterranean Transit Network
aliases
  • STN
  • Undergrid
  • Mole Rail
  • Deep Transit
subcategorytransportation
tier availabilityTier 4+
developers
  • ZHENG-DAO HEAVY INDUSTRIES
  • STERLING-NAKAMURA
base technologies
  • Deep tunnel magnetic levitation
  • Vacuum-sealed transit tube engineering
  • Autonomous tunnel boring and lining
enables
  • Ultra-high-speed subterranean transit
  • Bypass of surface traffic and surveillance
  • Secure transport of personnel and materials
  • Hidden infrastructure connectivity
social impactThe STN represents a literal underground layer of privilege — a transportation system that only the powerful know about and only the authorized can access. Its existence means that corporate executives and high-tier residents can move between facilities without ever appearing on surface surveillance, creating a shadow geography of movement that is invisible to the broader population. The STN has also enabled covert military logistics, with Zheng-Dao using the network to move weapons and personnel beneath city streets without detection.
story hooks
  • A player character discovers an STN access point in an unexpected location — a forgotten maintenance hatch in a Tier 1 basement that opens onto a high-speed transit tube carrying corporate executives directly beneath the city's poorest district.
  • Someone has introduced a contaminant into the STN's vacuum system that is being carried through the tube network — every station and pod is being exposed to an unknown substance.

Rejoining the server...

Rejoin failed... trying again in seconds.

Failed to rejoin.
Please retry or reload the page.

The session has been paused by the server.

Failed to resume the session.
Please retry or reload the page.