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Forests are gifts from Mother Nature, and the lumber mill is where we make our own treasures out of wood. However, due to excessive deforestation, this precious property of mankind is quickly disappearing. Maybe it's time to stop now, what do you say?

Building Lumber Mill 1 5
Unlocked at: City Hall Lv.2 — Additional building unlocks at: Lv.5, Lv.8, Lv.11

The Lumber Mill produces wood for collection by the governor. It is one of four such resource production buildings, along with the Farm (food), Quarry (stone), and Goldmine (gold). Each upgrade of the lumber mill improves its wood production per hour and its max wood capacity.

Building Requirements

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The build times listed below assume no building bonuses are active, such as those from technologies, alliance technologies, or VIP perks. While we cannot predict your build time, it will likely be less.
Level Wood/Hr Capacity Requirements Cost Time Power ROI days
1 400 4,000 City Hall Lv.1 Resource icon food 100
2s 5 0.01
2 430 4,300 City Hall Lv.2 Resource icon food 200
15s 11 0.3
3 470 4,700 City Hall Lv.2 Resource icon food 300
60s 18 0.3
4 520 5,200 City Hall Lv.2 Resource icon food 500
1m 30s 28 0.4
5 580 5,800 City Hall Lv.5 Resource icon food 1.0K
2m 38 0.7
6 650 6,500 City Hall Lv.6 Resource icon food 1.8K
Resource icon stone 1.0K
10m 68 1.9
7 730 7,300 City Hall Lv.7 Resource icon food 2.7K
Resource icon stone 1.6K
30m 150 2.5
8 830 8,300 City Hall Lv.8 Resource icon food 4.0K
Resource icon stone 2.6K
1h 309 3.1
9 950 9,500 City Hall Lv.9 Resource icon food 6.0K
Resource icon stone 4.2K
1h 30m 549 4.0
10 1,100 11,000 City Hall Lv.10 Resource icon food 9.0K
Resource icon stone 6.6K
2h 874 4.9
11 1,300 13,000 City Hall Lv.11 Resource icon food 15.0K
Resource icon stone 10.0K
3h 1,366 5.9
12 1,550 15,500 City Hall Lv.12 Resource icon food 22.5K
Resource icon stone 15.0K
4h 2,032 7.1
13 1,850 18,500 City Hall Lv.13 Resource icon food 35.0K
Resource icon stone 22.5K
6h 7m 3,049 9.0
14 2,200 22,000 City Hall Lv.14 Resource icon food 52.5K
Resource icon stone 35.0K
8h 3m 4,419 11.8
15 2,700 27,000 City Hall Lv.15 Resource icon food 80.0K
Resource icon stone 52.5K
10h 6,176 12.5
16 3,200 32,000 City Hall Lv.16 Resource icon food 120.0K
Resource icon stone 80.0K
13h 20m 8,576 18.9
17 3,700 37,000 City Hall Lv.17 Resource icon food 180.0K
Resource icon stone 120.0K
18h 3m 11,896 28.3
18 4,300 43,000 City Hall Lv.18 Resource icon food 275.0K
Resource icon stone 200.0K
22h 13m 16,246 37.6
19 5,000 50,000 City Hall Lv.19 Resource icon food 425.0K
Resource icon stone 300.0K
1d 4h 21,966 49.1
20 5,800 58,000 City Hall Lv.20 Resource icon food 650.0K
Resource icon stone 450.0K
1d 12h 29,846 65.1
21 6,700 67,000 City Hall Lv.21 Resource icon food 975.0K
Resource icon stone 675.0K
1d 20h 40,211 86.8
22 7,800 78,000 City Hall Lv.22 Resource icon food 1.5M
Resource icon stone 1.0M
2d 10h 54,646 107
23 9,000 90,000 City Hall Lv.23 Resource icon food 2.2M
Resource icon stone 1.6M
3d 6h 74,946 151
24 10,400 104,000 City Hall Lv.24 Resource icon food 3.5M
Resource icon stone 2.5M
4d 1h 103,446 203
25 20,800 208,000 City Hall Lv.25 Resource icon food 5.2M
Resource icon stone 3.8M
1x
Item Master's Blueprint
Master's Blueprint
5d 2h 143,196  ?
  • ROI (Return On Investment) is how many days for the lumber mill to produce the resources it took to upgrade. Production boost items can reduce the time. Currently it isn't worth upgrading all your lumber mills much past level ~17 due to the cumulative 100+ day ROI time.

Side Quests

Rewards are given via quest completion for upgrading this building.

Forest Conqueror — Upgrade the Lumber Mill (edit)
Requirement Reward
Upgrade Lumber Mill to Level 2 Resource icon food 250
Upgrade Lumber Mill to Level 3 Resource icon food 250
Upgrade Lumber Mill to Level 4 Resource icon food 500
Upgrade Lumber Mill to Level 5 Resource icon food 2,000
Upgrade Lumber Mill to Level 6 Resource icon food 1,500
Resource icon stone 1,000
Upgrade Lumber Mill to Level 7 Resource icon food 1,750
Resource icon stone 1,000
Upgrade Lumber Mill to Level 8 Resource icon food 2,000
Resource icon stone 1,500
Upgrade Lumber Mill to Level 9 Resource icon food 2,250
Resource icon stone 1,500
Upgrade Lumber Mill to Level 10 Resource icon food 1,500
Resource icon stone 1,250
Upgrade Lumber Mill to Level 19 Resource icon food 42,250
Resource icon stone 30,500
Upgrade Lumber Mill to Level 20 Resource icon food 64,750
Resource icon stone 45,500
Upgrade Lumber Mill to Level 21 Resource icon food 97,000
Resource icon stone 68,250
Upgrade Lumber Mill to Level 22 Resource icon food 146,500
Resource icon stone 103,750
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