“Enhances Academy’s Research Speed”
| Level | Requirements | Bread | Wood | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 21, Ward Expansion V Lv. 1, Camp Expansion V Lv. 1 | 370,000 | 370,000 | 75,000 | 18,000 | 11,000 | 18:03:20 | 8,000 | +1.60% Research Speed |
| 2 | Academy Lv. 22, Tool Enhancement V Lv. 1 | 520,000 | 520,000 | 100,000 | 26,000 | 15,000 | 1d 03:05:00 | 8,000 | +1.60% Research Speed |
| 3 | Academy Lv. 23, Tool Enhancement V Lv. 2 | 1,100,000 | 1,100,000 | 220,000 | 56,000 | 33,000 | 3d 00:13:20 | 10,000 | +2.00% Research Speed |