“Enhances Infirmary Capacity”
| Level | Requirements | Bread | Wood | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 4, Tooling Up II Lv. 1 | 6,700 | 6,700 | 1,300 | 330 | 80 | 00:02:30 | 2,200 | +1,100 Infirmary Capacity |
| 2 | Academy Lv. 5, Ward Expansion II Lv. 1 | 9,400 | 9,400 | 1,800 | 470 | 110 | 00:03:45 | 2,200 | +1,100 Infirmary Capacity |
| 3 | Academy Lv. 6, Ward Expansion II Lv. 2 | 20,000 | 20,000 | 4,000 | 1,000 | 240 | 00:10:00 | 2,800 | +1,400 Infirmary Capacity |