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P Permafrost Pedia Survival · Cold · Biomes
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Biomes

Frozen tundra, glacier, ice forest, frozen city — what each one costs you.
Gear

Clothing, tools, weapons — described by mechanic, not made-up stats.
Systems

Cold, warmth, hunger, progression, co-op — each with an explicit "unmeasured" list.
Guides

Original long-form guides, every number traced to a source.
Tools

Four calculators that turn a decision into a number.
Compare

Permafrost against other games, and biomes against each other.
Release

9 October 2026, Early Access.
News

Official timeline only — no rumour recycling.
Sources

Where every number comes from, and what is still unmeasured.
Read this before you trust the number. This is an editorial exposure model, not measured game data. Permafrost ships 9 October 2026, so no in-game warmth value can be verified today. What this tool is honestly good at is ranking which variable buys you the most time. Every multiplier is printed below so you can disagree with it.
-20 °C
-60 °C0 °C+5 °C
Estimated exposure budget
128 minutes
Comfortable

You can work a biome properly. Cold is a resource drain, not a threat.

Biggest levers — what to change first
  1. 1Upgrade to Layer 4 +46 min
  2. 2Upgrade to Sustained fire +45 min
  3. 3Upgrade to Lean-to +40 min
Copied.

The model, in full

One formula, six inputs, no hidden weights. If you think a multiplier is wrong, the disagreement is visible — which is the point.

exposure = BASE × tempMult × clothing × shelter × exertion × wetness + fireBonus

BASE = 60 minutes at 0 °C with three layers, no shelter, walking, dry · tempMult = max(0.15, 1 + (0 − °C) × 0.045) · clamped to 2–480 minutes.

Clothing multiplier

  • Starter — thin coat, no layering×0.45
  • Layer 2 — insulated jacket×0.75
  • Layer 3 — fur-lined parka×1
  • Layer 4 — reinforced winter rig×1.45
  • Layer 5 — full thermal shell×1.9

Shelter multiplier

  • Exposed — no cover at all×0.6
  • Windbreak — ruins, rock, vehicle×0.9
  • Lean-to — one wall + roof×1.25
  • Sealed room — four walls, doorway×1.7

Fire bonus (additive)

  • No fire+0 min
  • Small fire — embers, short fuel+25 min
  • Sustained fire — stoked, fuel stocked+70 min

Activity & wetness

  • Standing still×0.85
  • Walking — normal pace×1
  • Working — chopping, hauling×1.3
  • Sprinting — burning stamina×1.1
  • Dry×1
  • Damp — snow melt on fabric×0.65
  • Soaked — fell through ice×0.3
Why wetness is the real killer. In every version of this model, going from Dry to Soaked costs more time than upgrading two clothing tiers. Falling through ice is not a setback — it is the run. Carry a dry layer you never wear until you need it.
  • This is an editorial exposure model, not measured game data. Permafrost has not shipped, so no in-game warmth value can be verified yet.
  • It is built to answer one question honestly: which variable buys you the most time. Treat the minute figure as a relative magnitude, not a countdown.
  • Every multiplier is listed in the model table below so you can disagree with it — and the page will be recalibrated against real values after 9 October 2026.
All tools Cold & frostbite system Warmth & cold guide

Data version 2026.09.24 · reviewed 24 September 2026.