Automatic Piston Lock

[v · e] 140Automatic Piston Lock
This system uses powerful motorised pistons to automatically close the gates and prevent them from opening again half an hour before the attack.
Category	Buildings
Sub Category	Defensive Wall buildings
Unlocked by	Portal Lock
Blueprint
Defence	30
Effect	auto- 23:30
Action Points cost	45
Resource cost	×10 ×2 ×1 ×2 ×1
Buildings unlocked by Automatic Piston Lock
Piston-verrou
Kolbenschließmechanismus
Cierre automático

Revised for Season 17

A perfect solution if you don't want to assign a gatekeeper and a backup, and another backup, and a backup for that backup.

Construction

• Requirements for the Construction:

• The Automatic Piston Lock must have been unlocked with a blueprint:

• Construction Blueprint (common)

• The Portal Lock must have been completed.
• The following resources must be in The Bank and will be used up after completion:

• 10×  Wrought Iron
•   2×  Metal Support
•   1×  Handful of nuts and bolts
•   2×  Copper Pipe
•   1×  Laser Diode

• Citizens must spend 45 to complete the building.

• The costs can be reduced to 42 / 40 / 37 / 34 / 29 by Upgrading the Workshop.

Effects

• Automatically closes the Town Gates at 23:30. They will stay locked until The Attack ends.

• Completing the Automatic Piston Lock provides 30  Defence points for the Town.

Changes

• In Season 3:
  • Piston-Lock was renamed Automatic Piston Lock.
• In Season 6:
  • The provided increased from 15 to 30.
  • The resource costs dropped from ×10 ×3 ×4 ×1 to ×10 ×3 ×2 ×1.
• In Season 16:
  • The resource costs changed to ×10 ×2 ×1 ×2 ×1.

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