When the Catastrophe destabilized tectonic plates and melted the western ice shelves, the southern coastline did not flood gradually. It fractured.
Entire megacities sheared off their foundations and sank at angles. Financial districts slid into harbors. Oil platforms snapped their moorings but did not collapse. Offshore wind farms remained upright in violent seas.
The first survivors did not rebuild inland. They anchored themselves to what was still standing.
Over decades, the wreckage was welded into flotillas. Skyscrapers became breakwaters. Parking garages became ballast structures. Oil rigs became citadels.
From above, the region looks like broken glass scattered across a dark ocean.
That is why they are called the Glass Coast.
They are not a single state. They are a confederation of maritime city-states, each called a League. Each sends representatives to the Tidewatch Assembly, held quarterly on a rotating platform city called The Concordant Hull.
Decisions require supermajority consensus. In practice, influence is weighted by salvage output and energy production.
Built around a reinforced wind farm cluster. Energy capital of the Leagues.
Deep salvage authority. The divers' stronghold.
Largest civilian population hub. Center of trade and diplomacy.
Military arm of the Leagues. Controls all naval security operations.
Estimated population: 90,000 to 110,000 across all flotillas. Divided into three informal castes.
The Glass Coast economy rests on three pillars. They have become an industrial superpower at refining and reworking metals, and their exotic exports command premium trade value across the wasteland.
Sealed vaults. Intact data centers in anaerobic conditions. Rare alloys, pharmaceuticals, luxury goods. Entire towers shift under pressure at depth. Salvage rights are tightly regulated. Unauthorized dives are punishable by exile, which is effectively death. Police stations, refinable metals, and salvageable products are floated to the surface to fuel the trade economy and refinement industry.
Bioluminescent kelp forests provide close-range visibility and are processed into pigments for lighting systems, emergency networks, and export glow-sticks. Certain mollusks secrete bio-polymers stronger than steel filament, farmed in grove lattices to produce repair filaments, layered bulletproof plating, salvage tethers, and deep-dive equipment. A rare plankton strain produces neuroactive compounds with powerful psychedelic properties, fueling a rich nightlife and significant export economy.
Some underwater data vaults were built to withstand war. The Leagues operate recovery labs restoring pre-catastrophe financial records, satellite mapping archives, and military encryption schematics. They often discover maps outlining pre-catastrophe industrial districts that provide valuable salvage expedition intel.
They are not expansionist. But they are not defenseless.
They do not project power inland. They defend sea lanes ruthlessly.
The Leagues are unified by survival, not by agreement. Below the formal political layer, powerful cultural currents shape their future.
A serious biological-political movement rooted in Deepborn communities. They believe humanity adapted to land by necessity, not destiny. They fund oxygen efficiency augmentation, pressure tolerance therapies, low-light ocular modifications, and neural recalibration for long-duration isolation. Radical thinkers advocate amphibious generational living and intentional genetic steering. Surfaceborn leaders fear speciation.
Rising from machinists, metallurgists, and refinery guilds. They believe the drowned cities are infinite industrial reserves and the future belongs to those who master corrosion. They push for expanded salvage depths, recovered naval shipyards, and heavy cruiser-class vessels. Closely aligned with Kalyon Hold. Some inland observers quietly worry they are becoming a maritime military-industrial complex.
A cultural-religious minimalist movement. They reject expansionist ambition and advocate strict salvage quotas, no inland political entanglement, no engineered Deepborn divergence, and psychedelic export limits. Strongest in smaller flotillas, they hold moral influence disproportionate to their economic weight.
The most unsettling faction. Veteran Deepborn divers and data recovery specialists who believe the Abyssal anomalies are real and not mechanical. They report acoustic pulses that feel patterned, structures shifting between dives, and bioluminescent plankton behaving in coordinated flows at depth. They argue depth restrictions are political, not safety-based. The Assembly suppresses their more radical findings.
Rooted in the psychedelic plankton trade and nightlife culture. They argue controlled euphoria prevents social fracture and spiritual experience strengthens communal bonds. They manage offshore plankton arrays, ritualized trip-chambers, and performance halls lit entirely by bioluminescent kelp. Critics warn of diplomatic retaliation. They counter that inland elites are their most consistent buyers.
Below 200 meters, entire districts remain unexplored.
Drones sent into these depths sometimes fail in non-mechanical ways. Recovered footage shows anomalous movement in collapsed office towers.
The Assembly officially dismisses these reports in favor of more realistic social issues. Unofficially, salvage depth restrictions have increased. Quietly, funding for deep drone development has grown.
Something is down there. Whether it is geological anomaly, pre-catastrophe infrastructure, or something else entirely remains the defining question of Glass Coast civilization.
They do not worship gods. They respect storms.
Every year they hold The Night of Still Water, when all generators are shut down and the flotillas drift silently to honor those lost during the Shattering Tide.
Children are taught: the ocean does not forgive error. Navigation is sacred. Precision is moral.
Stormcallers, elite navigators trained in predictive modeling and instinctual wave reading, are revered. Ships refuse to sail without one. Hullwright Guilds treat structural reinforcement as art, with ritualized welding ceremonies marking major flotilla expansions.
Commander of Kalyon Hold. Naval security authority.
Marine geneticist studying Deepborn physiology and adaptation.
Current presiding voice of the Tidewatch Assembly.
Legendary Deepborn salvage leader. Has gone deeper than anyone on record.
Trade negotiator rumored to hold pre-catastrophe financial keys.