“Enhances Wood Output in Sawmill”
| Level | Requirements | Bread | Wood | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 13, Iron Mining I Lv. 1 | 170,000 | 170,000 | 34,000 | 8,600 | 1,900 | 00:20:00 | 1,430 | +5.50% Wood Output |
| 2 | Academy Lv. 14, Wood Output III Lv. 1 | 240,000 | 240,000 | 48,000 | 12,000 | 2,600 | 00:30:00 | 1,430 | +5.50% Wood Output |
| 3 | Academy Lv. 15, Wood Output III Lv. 2 | 510,000 | 510,000 | 100,000 | 25,000 | 5,700 | 01:20:00 | 1,820 | +7.00% Wood Output |