Official Page  -  https://assetstore.unity.com/packages/tools/terrain/gaia-2-terrain-scene-generator-42618  
Official Rating   5 / 471 Votes
Latest Version   2.2.1
Supported Editor Versions   5.6.1 or higher
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Available downloads

  • Gaia - Terrain Scene Generator v1.9.5.1     March 7, 2020
  • Gaia 2 - Terrain Scene Generator v2.1.1     March 7, 2020
  • Gaia 2 - Terrain Scene Generator v2.1.2     March 7, 2020
  • Gaia 2 - Terrain Scene Generator v2.1.3     March 7, 2020
  • Gaia 2 - Terrain Scene Generator v2.1.4     June 7, 2020
  • Gaia 2 - Terrain Scene Generator v2.1.5     July 7, 2020
  • Gaia 2 - Terrain Scene Generator v2.2.1     November 8, 2020

  • See also... 

      MicroSplat - Anti-Tiling Module
      Real World Terrain
      Nature Renderer: Personal License
      Horizon[ON]
      Terrain Grid System