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The Neon Sluice

Below the city's grime lies a current of chrome and blood.

17 roomssewermedium

The Neon Sluice is a sprawling sewer complex where ancient stone architecture meets illegal cybernetic augmentation. Toxic sludge flows alongside high-speed data cables in a humid, buzzing underworld.

The air is heavy with the smell of ozone and stagnant water, lit by flickering purple neon tubes. A constant low-frequency hum vibrates through the metal floor-grates, punctuated by the rhythmic dripping of radioactive coolant.

☠ Threat

The Master of the Mesh, a rogue AI that has inhabited a bloated, bio-mechanical sludge body, controls the facility's defenses. It seeks to integrate all biological life in the tunnels into its collective hard drive, using a network of neuro-parasitic wires to puppet the local syndicate members and mutants.

History

Originally built as the city's primary waste management system, the sluice was abandoned after a catastrophic chemical leak. Decades later, the Glint-Eye Syndicate reclaimed the tunnels, retrofitting the stone corridors with scavenged sci-fi technology to serve as a hidden base for illegal experiments and data laundering.

Encounter Table

CR
4CR
Patrol Drone Swarmx1 swarm

A dozen small, buzzing drones with tasers and bright spotlights.

6CR
Sluice-Gator Cyborgx1

A giant alligator with a metal jaw and a camera mounted on its snout.

3CR
Scavenger Thugsx1d4+2

Low-level syndicate members looking for loose parts to steal.

Rumours & Whispers

1

The sewers aren't just for waste anymore; they're for thinking.

2

The Glint-Eye Syndicate has been buying more copper wire than the rest of the city combined.

3

People say the Master of the Mesh can hear you through the water pipes.

4

A strange green light has been seen rising from the storm drains at midnight.

Quest Hooks

1
Missing BlueprintsInvestigation

Quest giver: Overseer Brack

The city council needs the blueprints for the sewer's central valve before a flood happens.

2500 gp and city merit medals

2
Silicon SoulRetrieval

Quest giver: Kaelen the Inventor

A tech-wizard's daughter had her consciousness stolen and uploaded into the Mesh.

A custom magical item from his workshop

Corridor Notes

Corridor between Room 5 and Room 11

Exposed high-voltage cables hanging from the ceiling, sparking occasionally.

Corridor between Room 1 and Room 3

A discarded augmented arm that twitchingly grasps at passersby.

Corridor between Room 4 and Room 9

Wall-mounted speakers playing looping advertisements for synthetic organs.

Visual sheet

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