연구
Defensive Formation II
CategoryBattle
Queuemain
Tier2
Research levels
| Level | Effects | Prerequisites | Costs | Power | Time |
|---|---|---|---|---|---|
| 1 | Infantry Defense 1.75% (1.75) | building: research-center 9；research: reprisal-tactics-ii 1 | Coal × 20000、Iron × 5000、Meat × 100000、Steel × 1200、Wood × 100000 | 7875 | 37m 30s |
| 2 | Infantry Defense 1.75% (3.5) | building: research-center 10 | Coal × 28000、Iron × 7000、Meat × 140000、Steel × 1600、Wood × 140000 | 7875 | 56m 15s |
| 3 | Infantry Defense 2% (5.5) | building: research-center 11 | Coal × 60000、Iron × 15000、Meat × 300000、Steel × 3600、Wood × 300000 | 9000 | 2h 30m |