Under the category of "Rube Goldberg Machines", I'd add this classic retro game for the kids:
The Even More Incredible Machine: https://playclassic.games/games/puzzle-solving-dos-games-onl...
The Even More Incredible Machine: https://playclassic.games/games/puzzle-solving-dos-games-onl...
This is not 'Incredible Machine' related, but while I'm here, I'm working on an engineering-adjacent game where you build and automate a zoo full of spooky monsters. Might be of interest to some! https://store.steampowered.com/app/654960/The_Eldritch_Zooke...
However, I'm not sure if it should stay that way. Maybe it'd be good to have some older games, etc.? Discussion here: https://github.com/arcataroger/awesome-engineering-games/dis...