Diggers

I used to play this a lot; Liked the style and idea, at least, but I'm Hazy on the rest.

But I played a later, seemingly rare version- 1.94- Which added the option to control diggers with the keyboard instead of by pressing in-game buttons with the mouse, like in the older DOS version I've tried. It also changed the interface to show the diggers themselves instead of number buttons and such to represent them. Don't know what it's like on the Amiga, though, and I haven't tried other controllers.

I can't find the 1.94 version anywhere. The only results are this webpage, the video, and one Abandonia post mentioning it that has a long-dead links which might have had the shareware demo version.