“Enhances Construction Speed”
| Level | Requirements | Wood | Bread | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 1 | 2,700 | 2,700 | 540 | 130 | 160 | 00:00:02 | 2,000 | +0.40% Construction Speed |
| 2 | Academy Lv. 2, Tooling Up I Lv. 1 | 3,700 | 3,700 | 750 | 180 | 220 | 00:00:40 | 2,000 | +0.40% Construction Speed |
| 3 | Academy Lv. 3, Tooling Up I Lv. 2 | 8,100 | 8,100 | 1,600 | 400 | 480 | 00:01:48 | 2,500 | +0.50% Construction Speed |