Official Page  -  https://assetstore.unity.com/packages/tools/terrain/digger-terrain-caves-overhangs-135178  
Official Rating   5 / 33 Votes
Latest Version   2.3
Supported Editor Versions   2018.4.23 or higher
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Available downloads

  • Digger - Terrain Caves Overhangs v1.6     March 7, 2020
  • Digger - Terrain Caves Overhangs v1.9     March 7, 2020
  • Digger - Terrain Caves Overhangs v2.1     July 7, 2020
  • Digger - Terrain Caves Overhangs v2.2.0     December 30, 2020

  • See also... 

      CTS 2019 - Complete Terrain Shader
      MapMagic World Generator
      MicroSplat - Trax
      Landscape Generator 3
      R.A.M 2019 - River Auto Material 2019