I think the tutorial could just be a sign on the first level that says "Click to interact, WASD to move." Everything else is conveyed pretty clearly through gameplay.
The primary game loop is really solid and the graphics are very cohesive! I liked the slowly building complexity as the levels progress.
Clicking to interact is kind of awkward when mouse position doesn't mean anything. I think I would have rather it been spacebar or something.
I couldn't tell if the machines broke down randomly or if you choreographed each level. Either way it made for a pretty neat experience. Nice work!