Here is the .blend https://drive.google.com/file/d/0B7YN1w1IyXTMTy1tQjlleXBpWjQ/view?usp=sharing, it is not finished
1- PickAxe (press Lmouse to use)
2- Shovel (Press LMouse to use)
3- Knife (Press RMouse to use)
anything you can effect (except gems) are not textured, they just have a material color.
Edit: there is only one level, and you can’t win it- problems with not having enough time. I was hoping for more puzzles and stuff.