Grusel – the scary demo, was written by Eckhard Kruse in 1987 for the Atari ST computer, and followed his previous work Grafik Und Sound demo!
This may look a bit dated these days, but was really fun back in the eighties on the Atari ST! And to this day, still one of my all time favourites! 🙂
PS: I had a lot of problems running Grusel in Atari ST emulators, so had to manually remake some of the graphics. I’m also, not sure that the fade-in and fade-out are correct…