Frostpunk 2 does not let you build a coal mine beside the Generator and call it done. The city is made of districts, every district draws on one shared workforce pool, and the fuel that keeps them warm has to be extracted, stockpiled and burned in the order the Generator can accept. Get the order wrong — run out of the fuel you have, or upgrade to a fuel you cannot supply — and the cold does the rest. This guide maps the real chain: the five district types, the three fuels, the two ways a stockpile ceiling actually moves, and the diagnostics that catch a coal-to-oil squeeze before it becomes a spiral.
What this covers: Frostpunk 2’s district types, fuel types, stockpile limits and the coal-to-oil transition. Why it matters: The failure mode is not a hidden conversion ratio — it is a Generator that cannot burn the fuel you have. Who should read this: Players whose cities stall on fuel after the starting coal seam thins.
The Real District Line-Up
Districts are the primary construction mechanic in Frostpunk 2. They cover multiple tiles, cost Heatstamps and Prefabs to build, and — the rule that governs everything else — all districts require Workforce to function or they shut down. Each one carries a role, a placement rule and a set of area effects.
There is no separate “processing” district type. The game ships five types, plus the Central District that holds the Generator and the Council:
| District | Produces | Where it can be built |
|---|---|---|
| Housing | Shelter | Any open space |
| Food | Food | On Fertile Soil deposits |
| Extraction | Coal, Materials (and Oil or Steam from matching deposits) | On coal, materials, oil, steam, prefab or core deposits |
| Industrial | Goods or Prefabs | Any open space |
| Logistics | Frostland Teams | On the Old Waystation ruins at the map edge |
The Central District is where the Generator sits; it also puts out small amounts of Goods and Food. It is not a Housing or Industrial district, and it is the only one of its kind.
Two structural rules follow. First, extraction is bound to the map: an Extraction District must sit on a resource deposit, and when that deposit is depleted the district shuts down until you Adjust it onto a new deposit. Second, production and consumption are separated across the whole city. An Industrial District does not have to touch the deposit it serves; it takes Materials off the shared stockpile and turns them into Goods or Prefabs.
Extraction: What Is Actually Down There
The Extraction District is the only district that mines. It must be placed on a resource deposit of one of these types: coal, materials, oil, steam, prefabs or cores. It produces the matching resource until the deposit is gone, then stops.
| Deposit | Extracted resource | Real use |
|---|---|---|
| Coal | Coal | Burned directly, or converted to Oil by a Coal Liquefactor |
| Materials (iron, wood) | Materials | Upkeep for most districts; input to Goods and Prefabs |
| Oil | Oil | Burned directly; more energy-dense than Coal or Steam |
| Steam | Steam | Burned directly; infinite deposits, cannot be stockpiled |
| Prefabs, Cores | Prefabs, Cores | Construction and advanced buildings |
Base Extraction District output is around 120 Coal or 150 Materials, and expanding the district raises that output without raising its Workforce or Materials demand. Buildings push it higher: Pumpjacks for oil, coal mines for coal, sawmills and ironworks for materials, geothermal plants for steam.
Note what is not on the list. There is no fishery district and no separate forestry district: a Food District on Fertile Soil is the map’s food producer (alongside the Central District and Frostland sites), and wood feeds the Materials chain through an Extraction District rather than a district of its own.
Deep deposits change the arithmetic. A deposit carrying a small infinity marker is effectively bottomless, but reaching it needs a Deep Melting Drill built inside the district covering it — a building that requires the Generator Upgrade I and Melting Deep Deposits research, costs a Core, and raises Squalor. Cores cannot be manufactured in the ordinary course of play. They are found by exploring the Frostland, which means every Core you spend is a choice about which advanced building you will not build.
Fuel: Coal, Oil and Steam
Frostpunk 2 has three fuels, and all three are burned as-is. There is no refinery step that turns oil into a different, more usable “fuel”: Oil is a fuel, and a more energy-dense one than Coal or Steam. The Generator consumes Coal and Oil from the start, and Steam only after it has been upgraded.
That upgrade is the single biggest fork in the economy, and it is mutually exclusive:
- Generator: Adaptive Pumps (Adaptation) — the Generator can burn Coal, Oil or Steam, and one unit of Oil produces two units of Heat.
- Generator: Oil Pumps (Progress) — the Generator runs on Oil only, at five Heat per unit, and burning Oil produces some Squalor.
Under Oil Pumps, coal stops being fuel. It is not wasted, though — it becomes feedstock. The Coal Liquefactor is an Industrial District building unlocked by Generator Upgrade I research that converts Coal into Oil. Both variants cost a Core and differ mainly in conversion rate and side effect:
| Liquefactor | Input | Output | Side effect |
|---|---|---|---|
| Carrion Coal Liquefactor | 60 Coal, 400 Workforce, 20 Materials | 80 Oil | Increases Disease |
| Pressurized Coal Liquefactor | 100 Coal, 300 Workforce, 40 Materials | 80 Oil | Increases Squalor |
That is the real “oil chain” in Frostpunk 2 — not oil to fuel, but coal to oil, paid for with a Core.
Steam is the quiet third option. It is extracted from Steam Deposits with an Extraction District and burned by an Adaptive-Pumps Generator. It is the one fuel that cannot be stockpiled or shipped between cities, and its deposits are infinite.
Stockpiles, and How the Ceiling Actually Moves
Not every resource behaves the same way. Frostpunk 2 sorts them into three groups:
- Global resources — Heatstamps and Prefabs. Shared across the city and all its colonies, stockpiled without a limit.
- Stockpiled resources — Coal, Oil, Food and Materials. Stored separately at each location, transferable in one-time batches or ongoing shipments.
- Fixed-supply resources — Workforce, Heat, Steam, Shelter and Guard Squads. Supplied continuously up to their limits, never stockpiled.
The stockpiled group is where the ceilings live, and the rules are explicit: while production exceeds demand, the surplus goes into the stockpile until it is full, after which output from all sources is automatically curtailed. When demand exceeds production, the deficit is pulled from the stockpile; if the stockpile empties, districts may shut down and problems start to rise.
So what raises a ceiling? Not a “storage district” or a warehouse district — neither exists. There are two real levers:
- Stockpile Hubs. One for each stockpiled resource — Fuel, Food, Materials and Goods — each adding roughly 50,000 capacity, with a proximity effect that lowers Workforce demand in the matching districts nearby.
- Depot buildings. A Depot can be built inside any district and adds 30,000 storage to a specific resource type. The Fuel Depot covers Coal and Oil; there are separate Food, Goods and Materials Depots.
Both cost Heatstamps and Prefabs rather than Materials, and each costs a tile and Workforce. Because a full stockpile curtails output rather than destroying it, an under-built stockpile does not waste production — it stops it. The real cost is the headroom you do not have when a Whiteout cuts supply.
Reading the Fuel Squeeze
The classic Frostpunk 2 death spiral is a fuel problem wearing a cold-weather costume:
- The starting coal runs thin. Coal deposits are finite. When the deposit under an Extraction District empties, the district shuts down until you expand it onto another.
- The fuel-source decision arrives late. Oil has to come from an oil deposit, a Frostland outpost, or coal liquefaction. Each route needs infrastructure you may not have built: an Extraction District on the oil, a Logistics District and Frostland Teams to reach an outpost, or a Core for a Liquefactor.
- The Generator cannot burn what you have. If you researched Oil Pumps, coal in the stockpile is no longer fuel. Until a Liquefactor runs, that stockpile is dead weight.
- Cold becomes a workforce problem. When Heat demand goes unmet, districts drop a temperature level, people fall ill, and Workforce thins. Districts below their Workforce requirement shut down — including the extraction districts you need to fix the deficit. Our district heat and adjacency guide covers the temperature side of that loop.
- Whiteouts compress the whole thing. A Whiteout moves with the winds and affects only the ground beneath it: it disables Outposts, blocks Territory exploration, cancels expeditions, and adds hazards that hit Food, Materials, demand and temperature. It is the moment a thin stockpile stops being a budget question.
The diagnostic is the trend, not the number. Watch net fuel flow across several ordinary weeks. A full stockpile with a negative flow is a countdown; the curtailment rule means a full stockpile tells you nothing about whether you can replace what you burn. And check the Generator panel’s current fuel type first — a “coal shortage” is often really a “the Generator takes oil now” problem.
Keep the buffer honest. The wiki’s own advice is to stockpile Coal or Oil in Depots ahead of a temperature change, because that is when demand climbs. Because Whiteouts also disable the Outposts that might otherwise top you up, the buffer has to cover the weeks you cannot import.
Heatstamps and Cores: The Non-Fuel Bottlenecks
Two resources gate the fuel fix without appearing in the fuel chain.
Heatstamps pay for construction and research: districts, Frostbreaking, Idea Tree projects, and the buildings that upgrade districts. They are collected from the population each week, and the income scales with Goods consumption — roughly one Heatstamp per thousand people. A Goods shortage therefore quietly cuts the budget you need for the infrastructure that would fix the fuel problem. Keep a reserve before a crisis, not during it.
Cores build the advanced machines. They are found in the Frostland, not manufactured, and the same Core buys a Deep Melting Drill, a Coal Liquefactor or a Generator upgrade. Spending one is a permanent choice about what your city will be able to do next.
The Short Version
- Five district types — Housing, Food, Extraction, Industrial, Logistics — plus the Central District. There is no processing, storage or fishery district.
- Fuel is Coal, Oil or Steam, burned as-is. Coal Liquefactors turn Coal into Oil; nothing turns Oil into a separate “fuel”.
- Food Districts output Food directly; Hothouses raise the rate. There is no raw-food-to-rations step.
- Stockpile ceilings rise through Stockpile Hubs (+50,000 each) and Depot buildings (+30,000 per resource), not through storage districts.
- Full stockpiles curtail output; they do not delete it. The danger is a thin buffer during a Whiteout, and a Generator upgraded to a fuel you cannot supply.
Next read
- Frostpunk 2 Districts: Thermal Efficiency and Adjacency — the temperature side of the fuel loop.
- Frostpunk 2 Endless Mode: Build Order and Crisis Response — a build order for the same economy in the sandbox.
- Frostpunk 2 Council: Delegates, Promises and Votes — the laws that redirect the city you are funding.
- All our coverage lives on the Frostpunk 2 hub.