Recherche
Coal Output III
CategoryEconomy
Queuemain
Tier3
Research levels
| Level | Effects | Prerequisites | Costs | Power | Time |
|---|---|---|---|---|---|
| 1 | Coal Output 7% (7) | building: research-center 18；research: iron-mining-ii 1 | Coal × 86000、Iron × 21000、Meat × 430000、Steel × 4800、Wood × 430000 | 1820 | 1h 40m |
| 2 | Coal Output 6.5% (13.5) | building: research-center 19 | Coal × 120000、Iron × 30000、Meat × 600000、Steel × 6700、Wood × 600000 | 1690 | 2h 30m |
| 3 | Coal Output 9% (22.5) | building: research-center 20 | Coal × 250000、Iron × 64000、Meat × 1200000、Steel × 14000、Wood × 1200000 | 2340 | 6h 40m |