Here's a few words from Arlasoft on their website. "This downloadable version is where development stopped a couple of years ago, I just hit a brick wall and the motivation to tackle even the smallest feature or bug disappeared. Unfortunately unless I get into a position where I can do my own thing all day every day I don't see me having the time or energy to finish it, but I will make the code available to anyone who wants to have a go."
Download: funfair_preview.prg
Source: arlagames.itch.io