The VOX Importer allows you to import .vox files into unity to add to your spaces as standard assets.
Example of MagicaVoxel assets
Import the VOX Importer tool from the Mona Tools panel in the Mona Library asset.
Importing the Vox Importer into Unity
Once downloaded, you can import .vox files much like any other asset such as .fbx.
Importing the .vox file