AOE IV / Technologies
Iron Clamps
Iron Clamps reinforcing the walls reduces incoming damage from gunpowder by 20% for Stone Walls and Fortresses.
TechnologiesKnights of Cross and RoseUnique to select civilizations
What it does
Iron Clamps reinforcing the walls reduces incoming damage from gunpowder by 20% for Stone Walls and Fortresses.
How it fits into a match
Research at <a href="../buildings/fortress.html">Fortress</a> once its age and civilization conditions are met. The effect list shows exactly what changes; prioritize it when the units or buildings affected are part of your current plan.
- Role
- Defensive Upgrade
- Earliest age
- Imperial Age
- Available to
- The Knights Templar
- Produced or researched at
- Fortress
Research conditions
Earliest listed form for each civilization in this game-data snapshot. Unit and building statistics are shown for that form; later-age upgrades and civilization bonuses can change values.
| Civilization | Age | Cost | Time |
|---|---|---|---|
| The Knights Templar | Imperial Age | 350 gold, 100 stone | 30 s |
