Resource Management#
The Resource System Concept#
In Cities: Skylines 2, resources are not abstract numbers — they are physical distributions that grow on the map. Fertile land, forests, ore, and oil spread across the whole map as overlays, and you must place the corresponding specialized industry buildings inside those resource areas to actually extract them and produce raw materials. Understanding this is the dividing line between “scattering industrial zones at random” and “laying out a precise production chain.”
This page does not cover city utilities like fuel, water, and heating — those belong to the utilities domain. It focuses solely on the four directly extractable natural resources plus their processing, transport, and depletion management.
Resource Types at a Glance#
| Natural Resource | Map Overlay Color | Extraction Buildings | Raw Material Produced | Main Pollution | Suitable Location |
|---|---|---|---|---|---|
| Fertile land | Green blocks | Farms, crop fields | Crops | Very low | Open plains, riverbanks |
| Forest | Dark green cover | Logging camps, forestry | Wood | Low | Well-wooded hill country |
| Ore | Red/dark veins | Mines, quarries | Ore | High | Underground ore vein areas |
| Oil | Dark oil field zones | Oil wells, pump stations | Crude oil | Very high | Underground oil field areas |
The common rule for all four resources: extraction buildings must sit within the corresponding overlay’s bounds, or they display “no available resources”; the richer the deposit, the higher a single building’s output efficiency.
How to Survey Resources#
Don’t rush to lay out housing at the start — run a full-map survey first and pin down the resource distribution before choosing industrial locations. Follow this procedure:
- Open the map’s resource overlay view and cycle through the fertile land, forest, ore, and oil layers to find the most concentrated deposits.
- Study how resource blocks sit relative to existing roads and external connections (highways, rail, sea access) — resource areas should border external routes to make exporting easier later.
- Note the prevailing wind and terrain around each rich deposit, and plan extraction buildings downwind of the settled population and away from low-lying water sources.
- Mark the rich spots on the map with a grid or flags so residential zoning doesn’t swallow them later.
Whether a resource is “worth extracting” comes down to two things: whether the overlay is large enough (can it hold multiple extraction buildings) and whether it sits near a transport trunk (are freight costs controllable). A resource that exists but is boxed in by housing or commerce is the most common waste of all.
The Full Production Chain#
Resources don’t turn into money directly — they pass through four steps: extraction → processing → manufacturing → consumption/export. Each step maps to a class of building, and missing any single step chokes everything downstream.
| Resource | Raw Material (Extraction Output) | Semi-Finished (Processing Output) | Finished (Manufacturing Output) | Destination |
|---|---|---|---|---|
| Fertile land | Crops | Processed food | Retail goods | Local commerce / export |
| Forest | Wood | Planks | Furniture, building materials | Local commerce / export |
| Ore | Ore | Metal ingots | Industrial goods | Local commerce / export |
| Oil | Crude oil | Fuel, petrochemical feedstock | Chemical products | Local commerce / export |
The proximity principle between upstream and downstream is the heart of the chain: processing buildings should sit right next to their extraction buildings, manufacturing next to processing, and finished-goods buildings close to commercial districts or the export gateway. The longer the transport distance, the more freight vehicles on the road, the heavier the congestion and pollution — and the greater the risk that logistics costs eat your profit margin.
Siting Specialized Industry in Detail#
Specialized industry is not ordinary industry — it must sit on the resource overlay. The table below gives the placement criteria for all four types.
| Specialized Industry | Required Resource Overlay | Placement Criteria | Relationship with Other Zones |
|---|---|---|---|
| Agriculture | Fertile land | Flat, open blocks that can hold large farmland | Low pollution; may sit moderately close to housing but needs freight corridors reserved |
| Forestry | Forest | Close to wooded areas, with processors as near the logging camps as possible | Low pollution; protect the sustainability of existing woodland |
| Mining | Ore veins | Large vein area with high extraction efficiency, far from residential areas | High pollution; must keep a green or office buffer from housing |
| Oil industry | Oil fields | Large reserves, away from the city and water intakes | Highest pollution of all — never place next to water supply or housing |
Common point: use office zones as the buffer between industry and housing. It lowers pollution’s impact on residents while shortening workers’ commutes — two birds with one stone.
Transport and Export Management#
Specialized industry faces the external market, so its profits hinge on how smoothly the external routes flow. Follow these rules:
- Route extraction output and finished goods along the highway outer ring or rail first — keep heavy freight trucks out of residential areas.
- Export finished goods through external connections (highway entrances and exits, rail freight lines); when corridor capacity falls short, expand the external gateway before adding more trucks.
- Serve local consumption first and export the surplus. Selling finished goods locally also feeds the commercial districts, forming an internal loop.
- Watch the freight logistics panel: if commerce runs short of goods while industry stockpiles inventory, the transport link is broken — the problem usually lies in network capacity or distance, not production volume.
Depletion and Transition#
Mineral resources (ore, oil) have finite reserves; once extraction runs them down, the corresponding buildings stop producing and may be abandoned. This is the trap every resource-based city must plan around in advance.
- Monitor reserves: check the remaining reserves on the resource overlay regularly so you know how much longer each resource will last.
- Transition early: before reserves bottom out, gradually shift the industrial center of gravity from extraction toward processing, manufacturing, and eventually offices and tourism, so industrial zones aren’t left abandoned en masse after depletion.
- Reserve land for replacement industries: don’t bet the whole city on a single resource. Forests regenerate and are relatively sustainable; ore and oil demand a pre-planned transition.
- Pace the transition: extraction retreats, processing advances, exports pivot to local consumption — let jobs and tax revenue glide over smoothly instead of cutting the extraction industry overnight.
Data Panels and Monitoring Criteria#
| Metric | Healthy Sign | Warning Sign | Action |
|---|---|---|---|
| Resource overlay reserves | Plentiful | Overlay color fading/nearly empty | Plan a transition or move to a new resource site |
| Extraction building efficiency | Fully loaded | Shows “no available resources” | Confirm the building sits inside the overlay |
| Finished goods export routes | Flowing | Commerce short of goods, inventory piling up | Expand external connections or shorten transport distance |
| Industrial pollution spread | Far from housing | Pollution intruding into residential areas | Add green buffers, adjust the siting |
| Freight congestion | Mild | Severe jams on arterials around industrial zones | Reroute freight onto the outer ring or rail |
Resource Priorities by Development Stage#
Resource development shouldn’t unfold all at once from day one — it should scale in step with the city’s stage. Compare your situation against the stage profiles below to decide where to focus.
| City Stage | Population Reference | Resource Focus | Rationale |
|---|---|---|---|
| Starting out | A few hundred | Develop fertile land and forest first | Low pollution, sustainable, and products can supply local commerce nearby |
| Growth | A few thousand | Add ore extraction and start building processing | Semi-finished processing raises value added and moves you off raw-material sales |
| Expansion | Tens of thousands | Bring in the oil industry depending on map reserves | Highest profits — but only with pollution isolation and external routes in place |
| Maturity | Tens of thousands | Shift to manufacturing, offices, and tourism; play extraction down | Avoids depletion and moves jobs and taxes to advanced industries |
At every stage switch, review the overlay reserves first, then decide whether to double down or pull back. A resource running short isn’t worth a heavy bet, no matter how profitable.
Step-by-Step Layout for One Resource Area#
For a resource area you’ve already surveyed, following this sequence extracts far more value than placing buildings at random:
- Connect the external route into the resource area first: a highway interchange or rail freight station is this district’s lifeline — without it, nothing leaves the area.
- Place finished-goods manufacturing and processing buildings on the side closest to the external gateway, giving finished products the shortest path out.
- Place extraction buildings right on top of the overlay, making sure every one sits inside the resource area.
- Leave a green belt or office buffer between the resource area and the residential districts, sized according to the pollution level.
- Reserve expansion land. Rich deposits justify multiple extraction buildings — building just one wastes the reserves.
- Run the freight view over the network and confirm trucks use the outer ring or freight lanes instead of cutting through residential areas.
Common Planning Mistakes#
- Misplacing extraction buildings: outside the resource overlay, nothing extracts — any specialized industry not inside the overlay just idles.
- Housing swallowing the resource area: once low-density housing surrounds a resource area, there’s no room left to expand extraction — you’ve permanently given up that resource.
- Broken chains: extraction without processing sells raw materials at the lowest profit; manufacturing without processing starves the downstream.
- Ignoring wind and water: mining or oil placed next to housing or water intakes triggers a pollution and water-supply crisis at the same time.
- Over-reliance on a single resource: a city living on oil alone starts declining the day the oil runs out.