Factorio Forums

This is my save game. I have been playing it for like 20 hours (I'm new) and when I returned to play it, I was prompted with a message saying "Opening zip C:/Users/(my name)/AppData/Roaming/Factorio/saves/Mega base.zip failed: No error"

I have no idea what could have happened, I would appreciate the help.

Thank you.

The zip file is completely filled with "null" - indicating something broke file write to disk when it was being created. There's no way it can be recovered.

Do you have any kind of extreme antivirus or are you using a laptop and it might have lost power while saving or something?