Credits
- Digging sounds by "Benboncan", downloaded from: http://soundbible.com/1328-Pickaxe.html
- Building/Hammering sounds by "abcopen" and Peter Whiter: http://www.freesound.org/people/abcopen/sounds/164208/
- "Chopping" sounds by "ceberation": http://www.freesound.org/people/ceberation/sounds/235510/