Oxygen Debt

Oxygen Debt is a sci-fi rogue-lite deep-sea mining thriller. Steer a heavy industrial submersible into pitch-black oceanic trenches to laser-excavate rare crystalline minerals, navigate territorial marine fauna, and race against an unforgiving life-support clock.

Every second beneath the surface compresses your air supply. When your main tank reaches zero, you enter Oxygen Debt: a 30-second emergency hypoxia countdown. Collect thermal vent bubbles to snatch vital extra seconds of consciousness and trigger emergency ascent buoys before hypoxia claims your diver.

Note: Oxygen Debt was developed using Google Gemini AI through iterative human design direction, balancing, feedback, and play-testing.

KEY FEATURES

• High-Stakes Dive Loop: Plunge from the surface salvage barge down through five abyssal depth zones (0m to 1,500m+).
• Suffocating Oxygen Debt Mechanic: Zero O₂ triggers a tense 30s emergency countdown where every hydro-thermal bubble gives precious seconds.
• Acoustic Sonar Radar: Echolocation pings reveal nearby mineral deposits with border arrows and exact meter readouts.
• Dynamic Ballast & Cargo Physics Minerals carry real physical weight in your hold. Upgrading hydro-thrusters is essential to ascend against gravity.
• Dangerous Abyssal Fauna: Dodge high-voltage stinging medusae jellyfish and apex abyssal anglers in the midnight zone.
• Surface Salvage Barge Workshop: Sell raw mineral yields at the Salvage Market, fulfill corporate bounty contracts, and upgrade ship modules (Tanks, Hull, Thrusters, Drills, Induction Coils, Scrubbers, and Ascent Buoys).
• Rescue Penalty: Blackouts trigger automated emergency recovery winches. Structural drag shears your frame, reducing your Pressure Hull Rating by 1 Tier.

CONTROLS

• Steer / Swim: [W] [A] [S] [D] or Arrow Keys
• Aim Mining Laser: Mouse Cursor / Movement Direction
• Mining Drill / Laser: Hold [Left Mouse Button] or [F]
• Turbo Thruster Boost: Hold [Shift]
• Sonar Echolocation: [E] or [Space]
• Emergency Ascent Buoy: [B]