The Alliance Portal is one of the most important buildings in the multiplayer game. Through it you request troops and better your chances of winning both offensive and defensive battles.
Your Alliance Portal is always in your base, but at first it is broken. You will need to repair it to request troops, but not to join an Alliance.
| Mission Unlock | Size |
|---|---|
| Level | Health | Space | Cost | Time | Castle Level |
|---|---|---|---|---|---|
| 1 | 900 | 5 | 43,000 | 0s | ? |
| 2 | 1,800 | 10 | 220,000 | 1h | ? |
| 3 | 2,400 | 15 | 1,100,000 | 1d | 6 |
| 4 | 3,000 | 20 | 4,300,000 | 3d | 7 |
| 5 | 3,600 | 25 | 17,000,000 | 5d | 9 |
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