Hello fellow tower defense submitter o/
Cool game! I really like the old school windows ui.
The idea of multiple tower defense games happening at once is a great idea! It might take a little bit too long to get to get access to those additional areas though
I think the camera controls are a little bit of friction. I would recommend maybe trying to get the game screen to fit on a single screen if possible, but it might not work with the game you're going for whatever reason.
Nice job!