Description
Enhances Coal Output at Coal Mine
Coal Output I
Requirements
| Level | Prerequisites | Research Cost | Time | Bonus | Power |
|---|---|---|---|---|---|
| 1 |
Research Center 6 Food Gathering I 1 Wood Gathering I 1 |
 13 000  13 000  2 700  670  800 |
00:02:15 |
Coal Output: 8.00% |
2080 |
| 2 |
Research Center 7 |
18 000 18 000 3 700 940 1 100 |
00:03:22 |
Coal Output: 8.00% |
2080 |
| 3 |
Research Center 8 |
40 000 40 000 8 100 2 000 2 400 |
00:09:00 |
Coal Output: 11.00% |
2860 |
