The Coal Mine generates Coal per tick, it can be upgraded with the following Extensions:
| Extension | Information | Size |
|---|---|---|
|
The Coal Storage adds 1 Coal per tick | 2x1 |
|
The Maintenance Shed adds 1 Coal per tick | 1x1 |
|
The Timber Tunnel Supports Using 1 Plank adds 3 Coal per 2 ticks | 1x1 |
|
The Second Headframe adds 2 Coal per tick | 1x1 |