Creation of backups for a game

Good evening! I have recently teamed up with another content creator on this site to begin construction of games for upcoming projects. We have ran into a hurdle of sorts with saving and creating backup states of our games during freak issues with power outages. My apologies in advance for the perhaps obtuse question, but any feedback in this endeavor would be thoroughly appreciated. (For reference if this is of any value, we both are using the “free” version) -Kindest Regards, Orange.

I wanna know who dat other content creator is. He sounds like a cool lad