Upgrades and Power
Walls, gate, ram, and trebuchet upgrades, costs, level caps, and power bonuses.
Related in Castles: Castle Types and Rewards | Siege Rules | Upgrades and Power
Castle battles use structure upgrades from both sides.
- Defense: walls and gate (governing alliance side)
- Attack: ram and trebuchet (attacking alliance side)
Upgrade facts:
- level cap is 5
- each level adds 1500 power to that structure
- upgrade costs per level are 200, 400, 800, 1600 alliance gold
- only overlords can upgrade
- ram and trebuchet upgrades require at least 10 attackers in siege
At siege resolution, structure power is added to participant power totals. Neutral castles defend with max fortification assumptions. After every siege, gate and walls can drop randomly by 0 to 3 levels, but never below level 1.