Your King Tower Level is vital for maintaining good tower health, strength, and more!
Not only does your King Tower Level determine the overall power of your Crown Towers in battle, it also affects the maximum level your Tower Troop cards can reach. Your Tower Troops can’t be upgraded beyond your current King Tower Level.
Your King Tower Level also affects the following:
- Magic Item inventory limits (excluding Wild Shards, Crystals, and Hero Coins)
- Pass Royale gift scaling
- Card boost level
Your King Tower Level will automatically upgrade once you reach the upgrade requirements. You can view these upgrade requirements in-game through the King Tower Level menu in your Collection, or see the table below for a full list of upgrade requirements.
| King Tower Level | Unlock Requirements |
| 2 | 9 cards at level 1 or above |
| 3 | 9 cards at level 2 or above |
| 4 | 10 cards at level 3 or above |
| 5 | 10 cards at level 4 or above |
| 6 | 10 cards at level 5 or above |
| 7 | 10 cards at level 6 or above |
| 8 | 10 cards at level 7 or above |
| 9 | 10 cards at level 8 or above |
| 10 | 10 cards at level 9 or above |
| 11 | 10 cards at level 10 or above |
| 12 | 11 cards at level 11 or above |
| 13 | 11 cards at level 12 or above |
| 14 | 12 cards at level 13 or above |
| 15 | 13 cards at level 14 or above |
| 16 | 14 cards at level 15 or above |
Please note! Tower Troops and Merge Tactic Rulers do not contribute to upgrading your King Tower Level.