Research
Coal Mining I
CategoryEconomy
Queuemain
Tier1
Research levels
| Level | Effects | Prerequisites | Costs | Power | Time |
|---|---|---|---|---|---|
| 1 | Coal Gathering Speed 16% (16) | building: research-center 7；research: coal-output-i 1 | Coal × 2000、Iron × 500、Meat × 10000、Steel × 600、Wood × 10000 | 2000 | 1m 34s |
| 2 | Coal Gathering Speed 16% (32) | building: research-center 8 | Coal × 2800、Iron × 700、Meat × 14000、Steel × 840、Wood × 14000 | 2000 | 2m 21s |
| 3 | Coal Gathering Speed 21.5% (53.5) | building: research-center 9 | Coal × 6000、Iron × 1500、Meat × 30000、Steel × 1800、Wood × 30000 | 2687 | 6m 18s |