Although not yet supported by Apple, HyperCard (https://en.wikipedia.org/wiki/HyperCard) still represent a software masterpiece for its elegance, easyness and power.
When it was released, in 1987, I was a kid passionated about computers. I loved to play with my Mac and hoped to become a programmer (like those at Apple) in the future.
After installing and running Hypercard for the first time, I was captured by its beauty. Each screen (card) was beautifully painted, appeared very intuitive, was easy to use and to customize. I still remember, I stayed awake all the night.
Obviously, this software immediately became my dream and my source of inspiration. I remember I wanted to work with its main creators: Bill Atkinson and Dan Winkler because I wanted to learn from them the techniques and the principles for building such incredible software.
Now let's look at the present: where is HyperCard 30 years later? Nowhere. A sad story happened to it: Apple (read: Steve Jobs) discontinued it in year 2000.
I don't want to comment this decision. I will only say that for me HyperCard is still here and I will do anything in my possibility not to lose that wonderful piece of software.
Here you'll find my HyperCard development system based on the Mini vMac emulator (http://www.gryphel.com/c/minivmac/index.html). I committed the Windows version (both 32 and 64 bit) but it works also with other versions (Linux, etc.). Moreover you'll find all the other resources to let it work properly.
Enjoy!