Thank you!
It is quite possible that I have a massive memory leak in the game. I'm not working on this game for fixes or updates so it is what it is.
As for not being able to attach parts onto other parts, I tried that. However it requires recursive collision connection checking and it would have taken way to long to implement given the time constraint. It was purely a technical design but I think it turned out to be a good restriction
Glad you enjoyed the game!