Biomechanical leeches, once a tool for cleaning filtration pipes, have fused with facility nanites and now slither through flooded corridors, attacking with steel-tipped mouths and siphoning air from their prey as they latch on. Their translucent, electronically-glowing bodies pulse with infected tech circuits.

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Hydro-Leech Sentinel

This stealthy predator is a mutated ray covered in cracked, reflective armor plating, silently gliding through flooded observation halls on distorted wing flaps. It uses its bioelectrical tail to stun intruders and then darts away, making it hard to pin down and kill.

Riftglider Stalker

Once automated sentries, these hostile robots are now partly overgrown with bio-luminescent barnacles and coral, their cannon arms shorting out and discharging erratically. They cling to metal walls, ambushing Rill with unpredictable bursts of energy or shrapnel.

Securitron Barnacle Alpha

The art style of the floor is 16-bit pixel art. The image must NOT contain any text. This floor forms the base environment of a flooded, abandoned underwater research facility, depicted with a deep slate blue hue to evoke cold depth, danger, and mystery while ensuring gameplay clarity and contrast against the protagonist and hazards.

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Underwater Facility Floor

A compact, multi-pronged baton fashioned from a salvaged hydrospanner and insulated tubing, designed for rapid, precise strikes and tool-assisted parries. Watertight seals and flickering LED bands highlight its patchwork, high-tech origins.

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Hydrospanner Baton

A jagged blade reimagined from a drone’s reinforced fin, set into a makeshift hilt with gleaming wire bindings and a line of micro-bioluminescent lights along the edge, perfect for swift, slashing skirmish attacks.

Scrapfin Saber

A compact trident built from scavenged electrode rods and energy coils, designed to thrust and pull enemies with electromagnetic pulses. The triple tips arc with residual energy, fitting for close-quarters crowd control.

Arc-Tether Trident

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A splintered viewing window patch, the thick glass barely holding back a torrent of dark ocean water, shudders menacingly with every movement nearby.

Cracked Pressure Glass

Rill is a lean, agile otter wearing a basic oxygen mask, a utility pack, and a determined expression, designed for fast, fluid movement underwater in a hazardous sci-fi facility.

Rill

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These fragile glass vials burst on impact into clusters of fluorescent, unstable gel, corroding rogue tech and mutants alike with a splash radius.

Volatile Bio-Gel Vial

Fashioned from salvaged lab polymers and coral struts, this high-tech slingshot hurls vials of volatile bio-reactive gel at distant threats, letting Rill improvise with scavenged pods as ammo.

Bio-Reclaimer Slingshot

A narrow, metal-grated staircase designed for emergency access, partially submerged and weathered by saltwater, with flickering red lights indicating danger in the collapsing research facility.

Flooded Emergency Catwalk

Abyss Run

A modular wall segment from the flooded sci-fi facility, combining cracked frosted glass, corroded metal bulkhead, and aquatic overgrowth, infused with eerie bioluminescence and exposed wiring.

Corroded Observation Wall

Deep beneath the crushing waves, a once-cutting-edge research facility now lies in ruins—its flooded corridors teeming with malfunctioning machines, crumbling passages, and ravenous, bioengineered sea creatures. You play as Rill, a fierce and resourceful otter driven by vengeance and the desperate will to survive, darting through labyrinthine, procedurally generated halls rendered in evocative 16-bit pixel art. Air is precious, the environment is unstable, and every looming shadow hides a threat or a clue to the broken past. Rill must leverage physical agility, sharp instincts, and tactical cunning to outmaneuver deadly hazards and uncover ever-shifting secrets of the maze. Each dive into the depths rewrites the path and reshapes the test—survival demands both bold choices and adaptability with every breath.

Abyss Run

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