The Dark Crystal was a graphic adventure game based on the movie of the same name. It was designed by Roberta Williams and published by Sierra in 1983.
At the time it was released, it was fairly highly regarded. One review even said it was better than the movie though I would disagree with this. If you haven't seen the movie, you should definitely do that. If you haven't played the game, well, I could take it or leave it but I'm not really a fan of the genre anyway. If you like graphic adventures of this type then this certainly isn't a bad one.
The combination of platforms this was released on seems pretty unique. It was only available on the Apple II, which are where the screen shots in this post are from, and the Atari 8-bit.
If you are interested in playing this game, then it is easy to do. You don't have to track down an old Apple or Atari or even mess around with finding a pirated disk image and setting up an emulator. There is an official web-based recreation that can be found here: http://www.darkcrystal.com/play/
Read more: https://www.megalextoria.com/wordpress/index.php/2017/09/13/the-dark-crystal-apple-ii/