As an engineer-in-training, I find this game fascinating, though I'm not necessarily going to be a programmer. The best thing about it is the glorious feeling you get when you machine starts to work perfectly; it's just the greatest sense of accomplishment. It's beautiful.
Speaking of accomplishment, you should be proud of this game. Any plans to add more levels or 'make your own level' functionality?
 "The Codex of Alchemical Engineering"){kind=icon}