Look, I'm not saying this game is bad, in fact it's great. But the fact of the matter is, it really messes with the browser unless it's minimized. I don't know what the recommended browser is but I'm using chrome. My computer isn't a light weight either. Just trying to let you know that there's something that really slows down things in your game. You all can downvote me if you want and hide this, I don't care. I'll just keep posting it.
This game after a period of time, slows down my browser so much it's practically unable to do anything else. Maybe put it in something other than unity, or possibly work on optimizing it somehow?
 "Game Dev Incremental"){kind=icon}
 "Reactor Incremental"){kind=icon}