Technology\Natural

Planting
All cities' food yield will increase by 5% each time it is upgraded 1 level.

Digging
All cities' sand stone yield will increase by 5% each time it is upgraded 1 level.

Smelting
All cities' metal yield will increase by 5% each time it is upgraded 1 level.

Lumbering
All cities' wood yield will increase by 5% each time it is upgraded 1 level.

Extraction
All cities' crystal yield will increase by 5% each time it is upgraded 1 level.

Upgrade Requirements

Skill Level Institute Level Cost Skill Points Time
1 1 200G 1 8Min 34Sec
2 2 380G 1 12Min
3 3 722G 3 16Min 48Sec
4 4 1371G 799S 6 21Min 13Sec
5 5 2606G 419S 13 29Min 43Sec
6 6 3952G 197S 24 39Min 32Sec
7 7 9409G 176S 47 52Min 34Sec
8 8 17877G 434S 89 1H 13Min 36Sec
9 9 33967G 126S 169 1H 28Min 21Sec
10 10 ? 322 ?
11 11 ? 613 ?
12 12 ? 1161 ?
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License