“Enhances Wood Output in Sawmill”
| Level | Requirements | Bread | Wood | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 8, Stone Mining I Lv. 1 | 54,000 | 54,000 | 10,000 | 2,700 | 640 | 00:05:00 | 1,040 | +4.00% Wood Output |
| 2 | Academy Lv. 9, Wood Output II Lv. 1 | 75,000 | 75,000 | 15,000 | 3,700 | 890 | 00:07:30 | 1,040 | +4.00% Wood Output |
| 3 | Academy Lv. 10, Wood Output II Lv. 2 | 160,000 | 160,000 | 32,000 | 8,100 | 1,900 | 00:20:00 | 1,430 | +5.50% Wood Output |