Security Wall
The Security Wall is the Police Department’s first line of defense. It protects the PD from attacks and provides Wall Durability, which increases as the Security Wall is upgraded.
When the Police Department is attacked and fails to defend, it burns for 30 minutes. If the Security Wall’s Durability falls to 0, the Police Department is randomly relocated to another position. Heroes can also be stationed at the wall to help defend the PD.
Confirmed in game
What the Security Wall Does
Protects the PD. Upgrade to increase the wall’s Durability.
Shown on the in-game Building Details screen.
Protects the Police Department
The Security Wall is the building that protects the PD from attacks.
Provides Wall Durability
The wall holds a pool of Wall Durability that represents its condition.
Upgrading increases Wall Durability
The in-game description confirms that upgrading the wall increases its Durability.
Upgrading increases the building’s Power
Each confirmed Security Wall level provides the corresponding building Power.
Supports stationed Heroes for PD defense
Heroes can be stationed at the Security Wall to help defend the Police Department.
A failed defense causes the PD to burn for 30 minutes
When the Police Department is attacked and fails to defend, it burns for 30 minutes. No further burning effects are confirmed.
The PD is randomly relocated when Wall Durability reaches 0
Once Security Wall Durability drops to 0, the Police Department is randomly relocated to another position.
Wall Durability
Wall Durability represents the condition of the Security Wall. Upgrading the wall increases its maximum Durability. When the Police Department is attacked and fails to defend, it burns for 30 minutes. If Wall Durability drops to 0, the Police Department is randomly relocated to another position.
Example / current screenshot values
- How much Durability is lost per attack, whether Durability is lost while burning, and how Durability recovers are not confirmed and are not recorded.
- Repair times, repair costs, whether burning can be stopped, and whether relocation restores Durability are not confirmed.
Stationed Heroes
Heroes can be stationed at the Security Wall to help defend the Police Department. Heroes marked as “Stationed Only” cannot be deployed elsewhere.
Example / current screenshot values
- The supplied screenshot showed three stationed Hero positions in that player’s Security Wall interface. Whether the number of positions is fixed for every player and wall level is not confirmed.
- Required Hero types, recommended Heroes, defensive bonuses and stationing requirements are not confirmed and are not recorded.
Supplied account only — not universal building data
Current Screenshot Values
A Level 4 Security Wall screenshot displayed Wall Durability 5,000, Power 21,940, Wall Status “Perfect” and current Durability 5,000/5,000.
Example / current screenshot values
- The confirmed Level 4 Power is 21,940, which matches the progression table.
- 5,000/5,000 is the wall condition at the moment of that screenshot, not a permanent or universal value.
- “Perfect” is one Wall Status shown in the screenshot. A complete list of Wall Status categories is not confirmed.
- The stationed Heroes, their levels, stars and Power totals shown in the screenshot belong to that account and are not Security Wall data.
Confirmed costs to reach each level
Upgrade Requirements
Lv. 1Lv. 1
No resource cost for this level.
Upgrade Details
Upgrade Time
—
Requires
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Select a level to see the cost, build time and prerequisite needed to reach it.
Confirmed building progression — levels 1–10
Security Wall Level & Power
Level / Power values taken directly from the in-game Building Details screen.