| Appearance | Namae | Upgrading Cost | Upgrading Cost in Gems | Upgrading Time |
 |
Mayor’s House | 3.400  2.750  |
5.535  |
7 days |
 |
Barracks | 4.800 4.800 |
8.640 |
7 days |
 |
Elite Barracks | 6.500 7.000 |
12.150 |
10 days |
 |
Combat Academy | 6.000 5.500 |
10.350 |
7 days |
 |
Combat Armory | 6.000 5.500 |
10.350 |
7 days |
 |
Floating Residence | 1.850 2.200 |
3.345 |
7 days |
 |
Endless Coal Mine | 4.000 6.000 |
9.000 |
7 days |
 |
Endless Copper Mine | 4.000 6.000 |
9.000 |
7 days |
 |
Endless Gold Mine | 6.000 8.000 |
12.600 |
10 days |
 |
Endless Iron Mine | 5.200 7.000 |
10.980 |
10 days |
 |
Fairytale Castle | 13.500 13.500 |
24.300 |
10 days |
 |
Gingerbread House | 3.000 3.000 |
5.400 |
7 days |
 |
Advanced Toolmaker Level 2 | 9.000  7.000  |
25.416 |
1 day |
 |
Advanced Toolmaker Level 3 | 9.000  7.500 |
33.602 |
3 days |
 |
Advanced Toolmaker Level 4 | 600  8.500 |
16.844 |
3 days |
 |
Advanced Toolmaker Level 5 | 800 9.000 |
18.279 |
7 days |
 |
Advanced Toolmaker Level 6 | 1.000 10.000 |
20.610 |
7 days |
 |
Advanced Toolmaker Level 7 | 10.000 6.500 |
14.850 |
10 days |
