How it works
- Produces Wood automatically up to its storage limit.
- Upgrade the Sawmill to improve production and storage.
- Collect produced Wood before storage fills to avoid idle production.
Upgrade costs
| Level | Bread | Wood | Stone | Iron |
|---|---|---|---|---|
| 1 | 0 | 30 | 0 | 0 |
| 2 | 0 | 45 | 0 | 0 |
| 3 | 0 | 200 | 0 | 0 |
| 4 | 0 | 450 | 90 | 0 |
| 5 | 0 | 1,900 | 380 | 0 |
| 6 | 0 | 4,800 | 960 | 240 |
| 7 | 0 | 17,000 | 3,400 | 865 |
| 8 | 0 | 31,000 | 6,300 | 1,500 |
| 9 | 0 | 65,000 | 13,000 | 3,200 |
| 10 | 0 | 110,000 | 23,000 | 5,700 |
| 11 | 110,000 | 110,000 | 23,000 | 5,900 |
| 12 | 150,000 | 150,000 | 30,000 | 7,500 |
| 13 | 210,000 | 210,000 | 42,000 | 10,000 |
| 14 | 280,000 | 280,000 | 56,000 | 14,000 |
| 15 | 410,000 | 410,000 | 83,000 | 20,000 |
| 16 | 530,000 | 530,000 | 100,000 | 26,000 |
| 17 | 830,000 | 830,000 | 160,000 | 41,000 |
| 18 | 1,100,000 | 1,100,000 | 220,000 | 56,000 |
| 19 | 1,400,000 | 1,400,000 | 280,000 | 70,000 |
| 20 | 1,900,000 | 1,900,000 | 380,000 | 96,000 |
| 21 | 2,400,000 | 2,400,000 | 490,000 | 120,000 |
| 22 | 3,200,000 | 3,200,000 | 640,000 | 160,000 |
| 23 | 4,000,000 | 4,000,000 | 800,000 | 200,000 |
| 24 | 5,400,000 | 5,400,000 | 1,000,000 | 270,000 |
| 25 | 7,300,000 | 7,300,000 | 1,400,000 | 360,000 |
| 26 | 9,400,000 | 9,400,000 | 1,800,000 | 470,000 |
| 27 | 13,000,000 | 13,000,000 | 2,600,000 | 670,000 |
| 28 | 17,000,000 | 17,000,000 | 3,500,000 | 890,000 |
| 29 | 22,000,000 | 22,000,000 | 4,400,000 | 1,100,000 |
| 30 | 27,000,000 | 27,000,000 | 5,400,000 | 1,300,000 |
Requirements and results
| Level | Requirements | Time | Power |
|---|---|---|---|
| 1 | Defense Tower Lv. 1 | 2s | 40 |
| 2 | Town Center Lv. 2 | 3s | 76 |
| 3 | Town Center Lv. 3 | 10s | 130 |
| 4 | Town Center Lv. 4 | 35s | 202 |
| 5 | Town Center Lv. 5 | 1m | 310 |
| 6 | Town Center Lv. 6 | 2m | 472 |
| 7 | Town Center Lv. 7 | 4m | 706 |
| 8 | Town Center Lv. 8 | 7m | 940 |
| 9 | Town Center Lv. 9 | 10m | 1,174 |
| 10 | Town Center Lv. 10 | 14m | 1,514 |
| 11 | Town Center Lv. 11 | 18m | 1,854 |
| 12 | Town Center Lv. 12 | 21m | 2,194 |
| 13 | Town Center Lv. 13 | 26m | 2,768 |
| 14 | Town Center Lv. 14 | 33m | 3,342 |
| 15 | Town Center Lv. 15 | 43m | 3,916 |
| 16 | Town Center Lv. 16 | 1h 13m | 4,724 |
| 17 | Town Center Lv. 17 | 1h 27m | 5,532 |
| 18 | Town Center Lv. 18 | 1h 45m | 6,340 |
| 19 | Town Center Lv. 19 | 2h 38m | 7,488 |
| 20 | Town Center Lv. 20 | 3h 17m | 8,636 |
| 21 | Town Center Lv. 21 | 4h 16m | 9,784 |
| 22 | Town Center Lv. 22 | 6h 25m | 11,506 |
| 23 | Town Center Lv. 23 | 8h 59m | 13,228 |
| 24 | Town Center Lv. 24 | 12h 34m | 14,950 |
| 25 | Town Center Lv. 25 | 17h 36m | 16,672 |
| 26 | Town Center Lv. 26 | 20h 15m | 19,202 |
| 27 | Town Center Lv. 27 | 1d 18m | 21,732 |
| 28 | Town Center Lv. 28 | 1d 3h 57m | 24,262 |
| 29 | Town Center Lv. 29 | 1d 8h 8m | 26,792 |
| 30 | Town Center Lv. 30 | 1d 14h 34m | 30,470 |
About these numbers
Costs, requirements, power and effects come from the game's own files. Times are base build times before construction speed bonuses, and power and effects are the building's totals at each level.