City Walls
Upgrade your city walls to reduce the damage taken from raids and protect your buildings and resources.
What Are City Walls
City Walls are a passive defensive structure that reduce the percentage of resources stolen and the chance of building seizure when you lose a raid. Every player starts with a default wall tier. Upgrading your walls costs FUEL and provides increasing protection.
Wall Tiers
| Tier | Damage Reduction | Upgrade Cost |
|---|---|---|
| Default | 15% | Free |
| Reinforced | 20% | $50 FUEL |
| Fortified | 25% | $175 FUEL |
Damage reduction is applied after combat resolution, reducing the effective steal and seize percentages against you.
Upgrading
Wall upgrades are purchased from the City panel. Each upgrade is permanent and cannot be reversed. The cost is paid in FUEL at the current TWAP rate. Plan your wall upgrade timing based on your risk exposure and available FUEL.