Pit Droids, Droid Works?

When I was a homeschooling parent, these two titles from Lucas Learning were very beloved by my two students in my official California Private School. One of them taught about sets, minus explaining set theory which I made a point of talking about to my kids at some point.

And they seem to be extinct and not available via something like Good Old Games.

Anyone know if there's any way to get functional copies of these titles or something similar?