Permafrost systems

The cold is the antagonist. It is alive, it is ever-present, and it scales with exposure.

Exact temperature scale · Frostbite thresholds · Storm frequency and duration

Warmth & Shelter

Warmth is the currency. Shelters are the banks.

Warmth drain rate · Generator fuel consumption · Shelter insulation values

Hunger & Exhaustion

Food and stamina decide how far you can push before the cold does.

Hunger decay rate · Stamina costs per action · Cooking recipe list

Exploration-Gated Progression

You do not level up. You unlock territory.

Number of progression tiers · Unlock requirements per tier · Map size

Base Building

A network of shelters, not one mega-base.

Building piece list · Material costs · Heat radius per structure

Dog Companion

Scout, alarm, pack mule — and the reason silence is survivable.

Carry capacity bonus · Scout radius · Behaviour under storm conditions

Co-op Survival

Co-op does not make the world easier. It makes it less lonely.

Loot sharing rules · Scaling of threats with player count · Drop-in / drop-out behaviour

Wildlife & Hunting

Predators are a material source as much as a threat.

Species list · Damage values · Hide yields

Factions & Territory

Other survivors are the second antagonist — territory is claimed, and the deep districts are not neutral ground.

Number and identity of factions · Reputation or hostility mechanics · Whether territory can be contested or taken · Stealth versus combat viability