The answer: Cube World
"Cube World is a 3D action RPG currently in development for PC. It features a huge procedurally generated world made up of cubes!" -Cube World Facebook
Link to developer's website and channel:
http://www.youtube.com/user/WollayFX
http://cubeworldforum.org/index
This game is still in development, so there will be no way to get it.

But be anticipating it! This game looks promising!
