Sunday, December 09, 2018


Let's mess about!

MandelST is a fractal generator developed in GFA Basic by Manos Kantzos (thanks to GeoAnas for the heads-up). I love messing about with funky fractals and this program is a cinch to use - which is a good thing for me!

Mandelbrot/Julia productions can be generated within moments but faster computers will benefit from their extra grunt. Of course, emulators are an excellent idea, unless you prefer leaving your ST on for long periods? Images can be exported as Degas PI1 or TIFF - which is superb. Also, basic animations are possible and these take us deep into an infinite mathematical world like nothing I've seen before. A stunning idea with great potential.

I've enjoyed creating many peculiar and wonderful images and animations - which I'm quite proud of. Also, it's fantastic to see something new being developed for the Atari ST so I'm hoping Manos continues on and improves his work in the future. This is a great program, so have yourself some geeky fun zooming in on infinite!!

My Funky Creations


  1. Nice colours...too funky screens! Me likes! ;-)

    1. heh thanks mate. He's made a good program here :)

  2. Steven, thank you so much for this post! I am so very proud for this publication at the legendary AtariCrypt!

    MANDELST in reality is an old program. It dates back to the end of '80s, started coding it somewhere around '88-'89. It was forgotten until I decided to retouch it and make a thread at one of Greek Retro Computing Community's important site, iamretro.
    Here is a link but the posts are in Greek Language:

    The (beloved) Atari ST is still going strong! Keep up the good work!