Over 1,000,000 copies were distributed of the demo program rom the original (PC World Cover disk back in 1994). An article and second disk appears on FOCUS Magazine - prompting Arthur C. Clarke to write the comment below. We corresponded for a few months. He was a great visionary and author and very sadly missed.
"More importantly, it seems to me that what you were generating is something much more impressive than Fractal Patterns. What you're really showing is views of our galaxy, in the far future when we've had time to do a little landscape gardening." Arthur C. Clarke (Nov 1994)
I've developed a classification systems for the xenofractals. There are a number of complexities in this process, not least of which is the enormous variance in the images. However the algorithm itself can be classified into genotypes based on the core functions.
Looking to possibly publish this, once I'm finished my crowd safety and risk analysis until then this is still a hobby and not my main line of research.