1
The Stronghold is the most important building upgrading the Stronghold will unlock new buildings and defenses.
| Base Level | Max Stronghold Quantity | Max Stronghold Level |
|---|---|---|
1 |
1 | 1 |
2 |
1 | 2 |
3 |
1 | 3 |
4 |
1 | 4 |
5 |
1 | 5 |
6 |
1 | 6 |
7 |
1 | 7 |
8 |
1 | 8 |
9 |
1 | 9 |
10 |
1 | 10 |
| Level | HP | Gold Cost | Build Time | Base Level |
|---|---|---|---|---|
| 1 | 1,500 | - | 1 |
|
| 2 | 1,600 | 850 | 4 min | 2 |
| 3 | 1,850 | 3,400 | 2 hrs, 40 min | 3 |
| 4 | 2,100 | 21,250 | 22 hrs, 8 min | 4 |
| 5 | 2,400 | 127,500 | 1 days, 21 hours, 6 min | 5 |
| 6 | 2,800 | 637,500 | 3 days, 19 hours, 2 min | 6 |
| 7 | 3,200 | 1,020,000 | 5 days, 18 hours, 8 min | 7 |
| 8 | 3,700 | 1,700,000 | 7 days, 14 hours, 4 min | 8 |
| 9 | 4,200 | 2,550,000 | 9 days, 12 hours | 9 |
| 10 | 5,000 | 3,400,000 | 13 days, 7 hours, 2 min | 10 |