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Perimeter Wall

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The Perimeter wall was added in Alpha 13 (Version). Any prisoner digging an escape will always go around a perimeter wall if possible as it takes significantly longer to dig through perimeter squares.

Utilities (Electrical Cable, Large Pipe) cannot be built on perimeter squares as the wall goes very deep underground, any utility lines will be severed when building over them.

Perimeter Wall is one of the four types of walls, the others being

Tip: Perimeter walls are typically a mid to late game upgrade after you have enough prisoners to support a decent income and need the extra protection against tunnel digging. Plan for them early by not laying power lines and water pipes where you will be placing them; but in early stages you can simply put down fencing to save money as your outer wall.

Trivia Edit

  • Perimeter Walls are the strongest walls to dig under.
  • Building a perimeter wall will create concrete tiles around the wall.

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