研究
Coal Output IV
CategoryEconomy
Queuemain
Tier4
Research levels
| Level | Effects | Prerequisites | Costs | Power | Time |
|---|---|---|---|---|---|
| 1 | Coal Output 8% (8) | building: research-center 23；research: iron-mining-iii 1 | Coal × 240000、Iron × 62000、Meat × 1200000、Steel × 16000、Wood × 1200000 | 2080 | 11h 6m 40s |
| 2 | Coal Output 8% (16) | building: research-center 24 | Coal × 340000、Iron × 86000、Meat × 1700000、Steel × 22000、Wood × 1700000 | 2080 | 16h 40m |
| 3 | Coal Output 10% (26) | building: research-center 25 | Coal × 740000、Iron × 180000、Meat × 3700000、Steel × 48000、Wood × 3700000 | 2600 | 1d 20h 26m 40s |