http://forum.unity3d.com/threads/tutorial-procedural-meshes-and-voxel-terrain-c.198651/
https://www.youtube.com/watch?v=c9roVJKl4GU
https://www.youtube.com/playlist?list=PLlTlfj-RDVxkaDKSmbeICrrA1xyF-b-Bs
https://www.youtube.com/playlist?list=PLlTlfj-RDVxlwVDBljKPDvYSinjXsjlTn
Qubicle
http://www.minddesk.com/index.php
MagicaVoxel
https://voxel.codeplex.com/
https://ephtracy.github.io/
https://www.youtube.com/watch?v=GuM1Xm7EZtA
https://www.youtube.com/watch?v=T38gUOP1Dag
https://www.youtube.com/watch?v=7--BfhRAt8Q&list=PLHtmobOgsDvlikllA1MBk7pk_DWlmtR_S
Characters
https://www.youtube.com/watch?v=Tw63hVAy6Iw
Voxelator
https://www.youtube.com/watch?v=_-Pf7iCR4zQ
Ideas:
https://s-media-cache-ak0.pinimg.com/originals/98/db/9e/98db9ed9df84c5eecfdcd48a25b17205.jpg