Coal Mine

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Coal Mine Default Model.PNG

The Coal Mine is the main source of Coal Icon coal.png, which can be sent for processing at Toolworks to become Coal Tokens Token coal.png or it can be combined with Iron Ore Icon iron ore.png at a Foundry to create Iron Icon iron.png and Coal Tokens Token coal.png. In 4th era coal is being used as fuel to produce steel Icon steel.png in steelworks and from 5th era on it is needed as fuel in Coal Power Plant to generate electricity. Thus coal mining becomes critical throughout the whole game.

Processes

The base version of the Coal Mine generates 1 Coal Icon coal.png per Game tick. The capacity of the mine can be extended using 5 extension buildings that can be built on adjacent tiles to the base Coal Mine building. Three of the extensions providing increase to the Coal Icon coal.png output of the mine could be build immediately. The Second Hearframe will be available in 2dn era and the Third Headframe will become available in 5th era of the game. Of all extensions the Second and Third Headframes provide the largest increase to Coal Icon coal.png production. The Timber Tunnel Supports extension adds a new process that consumes Timber Icon timber.png while providing another large increase to Coal Icon coal.png production. When all extensions are built around a Coal Mine, it consumes 0.5 Timber Icon timber.png and produces 8 Coal Icon coal.png per Game tick.
Some of the buildings can be connected to the electrical network E energy.png from Era 5 onward, which will increase their production. The amount of electrification production bonus (if applicable) is shown in the brackets at each extension.

The base process of the Coal Mine is:

Image Name Consumes Produces Ticks to
complete
Building
dimension (tiles)
Coal Mine.png Coal mine - 1 Icon coal.png + (1 Icon coal.png)E energy.png 1 Random shape
(4 tiles total)


Extensions

Image Name Cost Consumes Produces Ticks to
complete
Building dimension
(tiles)
Unlocked
at epoch
Coal storage.png Coal storage 120 Token money.png - 1 Icon coal.png 2 1x2 -
Maintenance shed.png Maintenance shed 40 Token money.png
80 Token coal.png
- 1 Icon coal.png 1 1x1 -
Timber Tunnel Supports.png Timber tunnel supports 200 Token money.png
20 Token timber.png
1 Icon timber.png 3 Icon coal.png 2 1x1 -
Second Headframe.png Second headframe 50 Token iron.png - 2 Icon coal.png + (1 Icon coal.png)E energy.png 1 1x1 2
Second Headframe.png Third headframe 10 Token electricity.png
20 Token steel.png
- 2 Icon coal.png + (1 Icon coal.png)E energy.png 1 1x1 5