Frostpunk 2 marks the next chapter in the story of the Generator Cities. One major change is that as coal deposits run out, the survivors of the Frostlands are forced to find new sources of fuel. In this game, that means swapping out one fossil fuel for another - surviving in Frostpunk 2 is nearly impossible without at least some oil.
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PostsIf you're playing on a map that has limited access to petroleum, or you've switched to the oil-exclusive Path of Progress and need something to do with all the extra coal you have laying around, Coal Liquefaction is the answer.
How To Research And Build Coal Liquefactors
CloseCoal Liquefactors are Industrial District buildings that become available to research after you've unlocked Generator Upgrade 1 from the Heating Idea Tree. As with most buildings, there are two versions; one for Progress and one for Adaptation. You can research both, but it's best to pick one that matches your city's ethos, especially considering that the research projects cost a hefty 100 Heatstamps each.
In Story Mode, Generator Upgrade 1 is unlocked automatically when you decide whether to Defeat or Embrace the Frost.In Utopia Builder, you have to research it manually like everything else.
Coal Liquefactor Buildings
Building
Cornerstone
Build Cost
Upkeep
Effects
Carrion Coal Liquefactor
Adaptation
- 200 Heatstamps
- 100 Prefabs
- 1 Core
- 400 Workforce
- 20 Materials
- Converts 60 Coal into 80 Oil.
- Slightly increases the city's Disease.
Pressurized Coal Liquefactor
Progress
- 200 Heatstamps
- 100 Prefabs
- 1 Core
- 300 Workforce
- 40 Materials
- Converts 100 Coal into 80 Oil.
- Slightly increases the city's Squalor.
Note that Liquefactors cost precious Cores - factor that into your plans when you're building, and be sure to have plenty of fully-staffed Logistics Districts so that your Frostland Teams can go out in search of more Cores!
As you can see, the Pressurized Coal Liquefactor uses less Workforce but uses more Coal and Materials to produce the same amount of Oil. By contrast, the Carrion Coal Liquefactor is more economical in terms of resources but requires more workers. You might also make your choice based on which Problem you're better-equipped to handle, Disease or Squalor.
Like all buildings in Frostpunk 2, Liquefactors' upkeep and production scale to the efficiency of their District. If you move the slider down on the Industrial District that houses a liquefactor, it will produce less oil but consume less Workforce and Coal. By the same token, expanding the Industrial District or increasing its Production Efficiency via Laws or Hubs will also increase the efficiency of the Liquefactor.
An Expanded Industrial District with two Liquefactors is expensive, but can produce a lot of Oil, especially with Emergency Shifts active. Conversely, one Liquefactor and one Goods Factory is a balanced build that helps keep several needs met simultaneously.
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PostsWhy Should You Use Coal Liquefaction In Frostpunk 2?
Liquefactors are an expensive investment, but well worth it on every difficulty level regardless of whether you've upgraded the Generator with Oil Pumps or Adaptive Pumps. Oil produces twice as much Heat as coal, so as long as you have the Workforce to keep your Liquefactors in operation, any coal produced by your city is better used in Liquefactors than going straight to the Generator.
If you outfitted the Generator with Oil Pumps, Liquefactors become a true necessity. With this build, the Generator converts an astounding five Heat per oil, but can't use any other fuel type. At that point, coal is worthless unless you run it through a Liquefactor.
If your city has a surplus of both Workforce and Materials, research and build Charcoal facilities on Extraction Districts exploiting wood. These are unlocked after researching Sawmills, and convert Materials into Coal. With Charcoal burners and Liquefactors, you can turn Materials into Coal, then into Oil!
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