Buildings

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Buildings are the core structures of your city in Whiteout Survival. Every building serves a specific purpose in city development, resource production, military operations, or Survivor welfare. Most buildings require the Furnace to be at a certain level before they can be constructed or upgraded.

How your city grows

Your city is not a free-form base: it is a dependency chain with the Furnace at its root. A building can never exceed the Furnace's level, so the Furnace is the single bottleneck that paces the entire game. Every long upgrade timer you plan, every resource stockpile you build, ultimately serves the next Furnace level — and the handful of buildings that gate it.

Because of that, the order in which you upgrade matters more than how many buildings you own. The four production buildings — Sawmill, Hunter's Hut, Coal Mine and Iron Mine — feed every other upgrade, so they repay early investment faster than anything else. The Command Center and troop camps decide how much army you can field and how far it can march; the Storehouse decides how much of your harvest survives an attack. Welfare buildings such as the Shelter (up to eight of them), Cookhouse and Clinic keep that economy running without interruption.

Building Categories

Core Infrastructure

Furnace — Heart of the city; its level gates all other building upgrades
Command Center — Military command hub; sets march and rally capacity
Storehouse — Protects resources from plunder; vital for resource safety

Residential & Welfare

Shelter — Housing for Survivors (up to 8 Shelters)
Cookhouse — Feeds Survivors using Meat from the Hunter's Hut
Clinic — Heals sick Survivors; reduces illness time
Chief's House — Issues Edicts to boost productivity and morale

Resource Production

Sawmill — Produces Wood (first production building)
Hunter's Hut — Produces Meat (second production building)
Coal Mine — Produces Coal (third production building)
Iron Mine — Produces Iron (fourth production building)

Military

Infantry Camp — Trains Infantry troops
Lancer Camp — Trains Lancer troops
Marksman Camp — Trains Marksman troops
Barricade — Defensive wall structure
Hospital / Infirmary — Heals wounded troops after battles
Enlistment Office — Recruits troop reserves when the Infirmary is full

Research & Development

Research Center — Standard research tree access
War Academy — Advanced Fire Crystal research (FC tier technologies)
Dawn Academy — Experts system hub (requires Furnace Lv. 25)

Alliance & Diplomacy

Embassy — Receives alliance reinforcements; increases alliance assist count
Alliance — alliance structures, from the HQ to Facilities

Heroes & Companions

Hero Hall — Recruit heroes using Platinum/Gold Keys
Beast Cage — Houses and levels up Pets
Lighthouse — Intel mission hub for daily rewards

Late-Game (Fire Crystal)

Arena — PvP combat arena (requires Furnace Lv. 8)
Crystal Laboratory — Daily exchange of resources for Fire Crystals
War Academy — FC-tier research using Fire Crystal Shards
FC variants of camps, embassy, infirmary, and command center

Building Upgrade System

All buildings follow the same upgrade system:

Each upgrade level requires the Furnace to be at the same level
Upgrades cost basic resources (Meat, Wood, Coal, Iron) and time
Late-game upgrades (levels 11+) require advanced materials
Alliance assistance can reduce upgrade timers

The system changes character past level 30. Until then, upgrades cost only the four basic resources and time, and the main constraint is the Furnace. From level 30 onward a state enters the Fire Crystal Age, and the Furnace — then the camps, Embassy, Infirmary and Command Center — gain Fire Crystal levels (FC1 to FC10) that demand Fire Crystals and Refined Fire Crystals on top of the basics. Two late-game buildings exist only to feed this phase: the Crystal Laboratory, which converts daily resources into Fire Crystals, and the War Academy, where the FC-tier technologies are researched.

When buildings unlock

New buildings open as the Furnace climbs, which is why raising it is always the priority that unblocks the most at once. The Arena becomes available at Furnace level 8, giving the first steady source of PvP rewards. The Dawn Academy, which unlocks the Experts system, waits until Furnace level 25. The Fire Crystal Age buildings and their FC levels only appear once the Furnace itself reaches level 30. Planning upgrades around these thresholds — rather than levelling buildings evenly — is what separates steady growth from wasted days.