“Enhances Wood Output in Sawmill”
| Level | Requirements | Bread | Wood | Stone | Iron | Gold | Upgrade Time | Power | Bonus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Academy Lv. 28, Iron Mining IV Lv. 1 | 3,100,000 | 3,100,000 | 620,000 | 150,000 | 51,000 | 2d 18:40:00 | 2,080 | +8.00% Wood Output |
| 2 | Wood Output VI Lv. 1 | 4,300,000 | 4,300,000 | 870,000 | 210,000 | 71,000 | 4d 04:00:00 | 2,080 | +8.00% Wood Output |
| 3 | Wood Output VI Lv. 2 | 9,300,000 | 9,300,000 | 1,800,000 | 460,000 | 150,000 | 11d 02:40:00 | 2,600 | +10.00% Wood Output |