Checkpoint64 has a preset for Satisfactory: it already knows where the save folder is, backs it up automatically and keeps every version. Everything this site has on Satisfactory:
Satisfactory
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Save file location
Windows:
%LOCALAPPDATA%\FactoryGame\Saved\SaveGames -
Backup guide
Satisfactory factories represent hundreds of hours, and a bad redesign or a corrupted autosave can undo them. Checkpoint64 keeps every version of your .sav files so you can experiment and roll back. Free download.
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Server ports
UDP 7777TCP 8888 -
Launch options
-nosplash-DisableSeasonalEvents-NO_EOS_OVERLAY -
Sharing with friends
How to share your Satisfactory world with friends, from playing live to taking turns when the host is offline.