“Enhances Academy’s Research Speed”
| Level | Requirements | Bread | Wood | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 16, Ward Expansion IV Lv. 1, Camp Expansion IV Lv. 1 | 210,000 | 210,000 | 42,000 | 10,000 | 2,800 | 02:53:20 | 6,000 | +1.20% Research Speed |
| 2 | Academy Lv. 17, Tool Enhancement IV Lv. 1 | 290,000 | 290,000 | 59,000 | 14,000 | 3,900 | 04:20:00 | 6,000 | +1.20% Research Speed |
| 3 | Academy Lv. 18, Tool Enhancement IV Lv. 2 | 630,000 | 630,000 | 120,000 | 31,000 | 8,400 | 11:33:20 | 7,500 | +1.50% Research Speed |