http://www.digipen.edu/?id=1170&proj=24629
https://www.digipen.edu/?id=1170&download=24629
Dig-N-Rig is an amazing DigiPen student project game that puts you in control of Diggit 6400, a mining robot that has several digging tools at its disposal. Your task here is to dig all the way to the center of the earth, mining and collecting minerals along the way so that better equipment can be purchased from the lab. This means building a series of scoopers and conveyor belts to transport the minerals back to your base of operations, where they are processed and turned into rare elements for research and upgrade purposes.
https://www.digipen.edu/?id=1170&download=24629