Dig
4 games
Description
Digging is satisfying in games for the same reason it is in life - you can see how much you've done, and there's always something you haven't reached yet.
Dig This is the puzzle of the group, and it's the one that will genuinely stop you. Removing the wrong earth changes how everything falls, so a level has to be worked out before you start rather than during. Dig & Flow - Save Water turns digging into routing, Mole Dig Clicker takes the incremental route so progress just keeps accumulating, and Backyard Dig Hole 3D Simulator is exactly what it says.
There are 4 free games under this tag, all playable in the browser with nothing to install, and the puzzle one will hold you up far longer than the clicker will.
The wider tag is Digging Games, and Puzzle games covers the thinking end.