Can't, im on limited space 64GB, i delete any game i finish it. And usually i skip a couple versions ( especially if it's short ) if it's take to long to get the new content
literally just get a usb stick and move your save files to it when done with content instead of deleting them completely so you can get it from the usb when new updates come? it's what i do with games im waiting on updates for so they don't just hang around taking up space
