A few days ago I picked up a copy of System 15000 for the Beeb from those lovely peeps at The Attic Bug and, more as an experiment really, I thought I'd convert it to run on the PC.
I have put a good deal of effort into trying to track down the original's author/copyright holder but this is, unfortunately, still ongoing.
In the meantime, here is a folder containing the .exe, the BB4W source file and ReadMe file.

Kian

P.S. If you want to actually play it, don't look through the source as it's a dead give-away.