I loved this!
Aside from not being able to pan the camera because Im using a trackpad, the only issue that I had was at a certain point it became a bit unreasonably expensive to expand and create a bigger factory, because if it didn't cost so much, I would gladly sit here for like an hour just making a massive structure (as much as I hate to admit it lol). But other than that, I felt that this was fantastic!
also look how optimized this is