Minecraft, Super Motherload, Dig Dug, they all give you that nice feeling of getting something done as you dig through the earth. This one has platforming and adorable steampunk robots, so it might be a winner.
Where are the pesky humans? Funny story, that. They blew themselves up. Now steam-powered robots have taken over the world in Steamworld Dig, while what's left of the "degenerate race of drunken, dynamite-wielding troglodytes" hide in caves beneath the surface.