from level 26
| Origin: | Merchant: Architect | 1.975  (max 3) |
| Level | 1 | 2 | 3 |
| Appearance |  |
 |
 |
| Build Cost | – | 100  100  |
200 200 |
| Build Time | 10 minutes | 1.40 minutes | 3.20 minutes |
| Production | 3  = 1  |
6 = 2 |
9 = 3 |
| Level | 4 | 5 | – |
| Appearance |  |
 |
– |
| Build Cost | 300 300 |
500  |
– |
| Build Time | 5 minutes | 6.40 minutes | – |
| Production | 12 = 4 |
15 = 5 |
– |
| Number Of Resources | 3.000 |
||
| Production Time | 51.40 minutes | ||
Immediately Upgrade a Building:
| Level | 1 | 2 | 3 | 4 | 5 |
| Cost | 50  |
203 |
405 |
608 |
1.575 |