So first of all, this is a really fun game to sort of pass time (and obviously look for a highscore while at it)...
Because you there is a mobile app for this too, I thought it might be a good idea to be able to continue progress on that as well when not at a pc/laptop, I would think a sort of export/import system for saving but more just so that all progress is kept and shared from phone to pc.
 "Idle Tower Defense"){kind=icon}
 "Hands of War 3"){kind=icon}