Atomic Heart guide: Where to find all Testing Grounds in Polygons - Polygon

Atomic Heart features optional dungeons call Testing Grounds (or Polygons). Here’s where to find them all, plus instructions on how to open them.

Atomic Heart: Polygon 11 Testing Ground guide

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Atomic Heart: Polygon 11 Testing Ground guide

Atomic Heart: Polygon 11 Testing Ground guide

Atomic Heart guide: Where to find all Testing Grounds in Polygons - Polygon

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