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Description

Further increases the building speed in your city.

Upgrade Table

Internal clipboard Please note
The research times listed below assume no research bonuses are active, such as those from technologies, alliance technologies, or VIP perks. While we cannot predict your research time, it will likely be less.
Level Building Speed Requirements Costs Time Power
1 +1.0% Plow Level 1
Sawmill Level 1
Academy Level 17
Resource icon food 250.0K
Resource icon wood 250.0K
Resource icon stone 187.5K
Resource icon gold 125.0K
12h 3,915
2 +3.0% Engineering Level 1
Academy Level 17
Resource icon food 375.0K
Resource icon wood 375.0K
Resource icon stone 282.0K
Resource icon gold 188.0K
16h 48m 9,620
3 +6.0% Engineering Level 2
Academy Level 17
Resource icon food 563.0K
Resource icon wood 563.0K
Resource icon stone 423.0K
Resource icon gold 282.0K
23h 31m 17,937
4 +10.0% Engineering Level 3
Academy Level 17
Resource icon food 845.0K
Resource icon wood 845.0K
Resource icon stone 635.0K
Resource icon gold 423.0K
1d 9h 30,078
5 +14.0% Engineering Level 4
Academy Level 18
Resource icon food 1.27M
Resource icon wood 1.27M
Resource icon stone 953.0K
Resource icon gold 635.0K
1d 22h 47,822
6 +18.0% Engineering Level 5
Academy Level 18
Resource icon food 1.90M
Resource icon wood 1.90M
Resource icon stone 1.43M
Resource icon gold 953.0K
2d 17h 73,778
7 +22.0% Engineering Level 6
Academy Level 18
Resource icon food 2.85M
Resource icon wood 2.85M
Resource icon stone 2.15M
Resource icon gold 1.43M
3d 18h 111,786
8 +26.0% Engineering Level 7
Academy Level 18
Resource icon food 4.28M
Resource icon wood 4.28M
Resource icon stone 3.22M
Resource icon gold 2.15M
5d 6h 167,500
9 +30.0% Engineering Level 8
Academy Level 18
Resource icon food 6.42M
Resource icon wood 6.42M
Resource icon stone 4.83M
Resource icon gold 3.22M
7d 9h 249,252
10 +35.0% Engineering Level 9
Academy Level 20
Resource icon food 9.63M
Resource icon wood 9.63M
Resource icon stone 7.24M
Resource icon gold 4.83M
10d 8h 369,332

Upgrade Rewards

Advanced Research — Research Engineering in the Academy (edit)
Level Reward
Resource icon food Food Resource icon wood Wood Resource icon stone Stone Resource icon gold Gold
1  ?  ?  ?  ?
2  ?  ?  ?  ?
3  ?  ?  ?  ?
4  ?  ?  ?  ?
5 19,600 19,700 13,500 12,600
6 34,900 33,700 23,500 24,400
7  ?  ?  ?  ?
8  ?  ?  ?  ?
9  ?  ?  ?  ?
10  ?  ?  ?  ?
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