Description
Accelerates Coal Gathering
Coal Mining IV
Requirements
| Level | Prerequisites | Research Cost | Time | Bonus | Power |
|---|---|---|---|---|---|
| 1 |
Research Center 26 Iron Output IV 1 |
 930 000  930 000  180 000  46 000  12 000 |
07:46:40 |
Coal Gathering Speed: 16.00% |
2000 |
| 2 |
Research Center 27 |
1 300 000 1 300 000 260 000 65 000 16 000 |
11:40:00 |
Coal Gathering Speed: 16.00% |
2000 |
| 3 |
Research Center 28 |
2 700 000 2 700 000 550 000 130 000 36 000 |
1d 07:06:40 |
Coal Gathering Speed: 21.50% |
2687 |
