Involves digging up tunnels and/or chambers in rock or other solid material.
Alternate name: Tunneling
The first video game about Digging was released in 1979.
This is usable regardless of the method of digging, so this covers digging by hands, pickaxes, shovels, mechanical drills, laser drills, disintegration, teleportation, and whatever else one might make up.
compare with these groups