The steely vigilance of Pixel Prospector has brought our attention to forthcoming voxel-RPG, Cube World. The creator of the game explains: "Cube World is (or will be) a 3D Voxel-Based game with a focus on exploration an RPG elements. The world is procedurally generated and features cave systems and basic procedural buildings." It's remarkable cute, as you can see in the footage below.
Interestingly, it's only been in development for a few weeks.