I have asked if there is a windows version. The answer was a definitive NO. I gather that there is a work around using OS emulators on Windows but having had some experience with this solution in the education sector in Scotland, I would imagine that it is somewhat problematical. The various education departments eventually realised that children leaving school would very rarely come across a solely Mac environment apart from some specialised workplaces some as graphic arts. They have now all moved to a Windows environment. Having been in the IT industry for the past 40 years, MAC only environments have almost disappeared in business. Whether this is good or bad is a debatable issue.
I don't know how other Simulation Curriculum software users feel, but I would find it extremely useful to have a Windows version. I know that this won't be a simple task but one well worth pursuing.