研究
Tool Enhancement IV
CategoryGrowth
Queuemain
Tier4
Research levels
| Level | Effects | Prerequisites | Costs | Power | Time |
|---|---|---|---|---|---|
| 1 | Research Speed 1.2% (1.2) | building: research-center 16；research: camp-expansion-iv 1；research: ward-expansion-iv 1 | Coal × 42000、Iron × 10000、Meat × 210000、Steel × 2800、Wood × 210000 | 6000 | 2h 53m 20s |
| 2 | Research Speed 1.2% (2.4) | building: research-center 17 | Coal × 59000、Iron × 14000、Meat × 290000、Steel × 3900、Wood × 290000 | 6000 | 4h 20m |
| 3 | Research Speed 1.5% (3.9) | building: research-center 18 | Coal × 120000、Iron × 31000、Meat × 630000、Steel × 8400、Wood × 630000 | 7500 | 11h 33m 20s |