Description
Accelerates Coal Gathering
Coal Mining II
Requirements
| Level | Prerequisites | Research Cost | Time | Bonus | Power |
|---|---|---|---|---|---|
| 1 |
Research Center 16 Iron Output II 1 |
 100 000  100 000  20 000  5 000  1 200 |
00:17:30 |
Coal Gathering Speed: 11.00% |
1375 |
| 2 |
Research Center 17 |
140 000 140 000 28 000 7 000 1 600 |
00:26:15 |
Coal Gathering Speed: 11.00% |
1375 |
| 3 |
Research Center 18 |
300 000 300 000 60 000 15 000 3 600 |
01:10:00 |
Coal Gathering Speed: 14.50% |
1812 |
