Shield Upgrade Iv
Updated 10/12/2026
| Level | Prerequisites | Bread | Wood | Stone | Iron | Gold | Time | Power | Buff |
|---|---|---|---|---|---|---|---|---|---|
| Lv. 1 | Academy Lv. 22 Close Combat Iv Lv. 1 | 930.0K | 930.0K | 180.0K | 46.0K | 12.0K | 16h 40m | 18.0K | + 4 % |
| Lv. 2 | Academy Lv. 23 Shield Upgrade Iv Lv. 1 | 1.1M | 1.1M | 220.0K | 55.0K | 14.0K | 21h 40m | 18.0K | + 4 % |
| Lv. 3 | Academy Lv. 24 Shield Upgrade Iv Lv. 2 | 1.3M | 1.3M | 260.0K | 65.0K | 16.0K | 1d 9h 20m | 18.0K | + 4 % |
| Lv. 4 | Academy Lv. 25 Shield Upgrade Iv Lv. 3 | 1.6M | 1.6M | 330.0K | 83.0K | 21.0K | 2d 2h | 18.0K | + 4 % |
| Lv. 5 | Shield Upgrade Iv Lv. 4 | 3.4M | 3.4M | 680.0K | 170.0K | 44.0K | 5d 5h | 29.3K | + 6.5 % |