Thanks for replying! My goal here is to make saving completely automatic, so I don’t want to ask the user whether they want to save.
I assume ApplicationWillTerminateDelegate won’t be called when the user kills the application through Task Manager, turns off the power of their PC, or when the game crashes. Not saving in those cases is as expected for the user, I think. Unfortunately the documentation doesn’t mention whether there are other situations than that where this delegate isn’t called.