연구
Iron Mining III
CategoryEconomy
Queuemain
Tier3
Research levels
| Level | Effects | Prerequisites | Costs | Power | Time |
|---|---|---|---|---|---|
| 1 | Iron Gathering Speed 13.5% (13.5) | building: research-center 22；research: coal-mining-iii 1；research: food-gathering-iv 1；research: wood-gathering-iv 1 | Coal × 64000、Iron × 16000、Meat × 320000、Steel × 3600、Wood × 320000 | 1687 | 1h 10m |
| 2 | Iron Gathering Speed 13.5% (27) | building: research-center 23 | Coal × 90000、Iron × 22000、Meat × 450000、Steel × 5000、Wood × 450000 | 1688 | 1h 45m |
| 3 | Iron Gathering Speed 18% (45) | building: research-center 24 | Coal × 190000、Iron × 48000、Meat × 970000、Steel × 10000、Wood × 970000 | 2250 | 4h 40m |