Sub Zero City
Safety. Security. Steampunk.
Aethelgard is dying. Beneath miles of tectonic rock and permafrost, the last bastion of humanity is losing its pulse. The geothermal heat that has sustained the city for generations is failing as the upper thermal lines—the Veins—choke on ancient ice.
In Sub Zero City, you play as Pipe-Runners, desperate specialists sent into the abandoned, oxygen-starved Upper Reaches. Your mission: navigate the rusted vertical labyrinth, bypass the frozen valves, and reroute power to the central core.
If you fail, the city becomes a tomb. If you succeed, you buy humanity one more day of warmth.
Features
- A Compact Rule System: A "Heat Die" mechanic where every roll of a 1 brings you closer to freezing in the dark.
- The Dying Light: Manage your lantern fuel—the only thing standing between you and the sub-zero shadows.
- Three Perilous Zones: Explore the Residential Ghost-Halls, the Vertical Ventilation Shafts, and the High-Pressure Chamber.
- Fast Character Creation: Choose your Calling and be ready to climb in under five minutes.
The metal is groaning. The frost is creeping. Can you turn the tide?
Part of my 2025 Advent Calendar
Purchase
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Exclusive content
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Community Copies
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- Each purchase adds 3 copies to the pool.
- Each tip adds another copy per $1 of the tip.
- Tips of $10 or more add 20 copies.
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