Sons of the Forest keeps one live save per world, and whoever's hosting is the only copy that actually matters — lose that save to a crash and the base is gone no matter how much progress the rest of the group saw. Checkpoint64 backs up the host's save automatically and keeps every version, so a bad session doesn't cost the base.
Where Sons of the Forest saves live
%USERPROFILE%\AppData\LocalLow\Endnight\SonsOfTheForestThat's the save data Checkpoint64 watches — buried in the LocalLow folder, which is hidden by default and easy to lose track of. Sons of the Forest writes only to Windows in the app's game catalog, so this one folder is the whole picture.
Why only the host's save matters
Like most small-group survival co-op games, Sons of the Forest runs on one live world held by whoever's hosting. Everyone else plays into that session, but there's no separate guest copy keeping its own history — if the host's save is lost or corrupted, the world goes with it, regardless of what anyone else experienced. That makes the host's save the one file in the whole session worth actually protecting.
Recovering after a crash
A crash or a force-close mid-save is the usual way this kind of save gets damaged, and it's an especially bad time to lose progress after a group's put real hours into one base. Checkpoint64 keeps every version it backed up, so recovering means restoring the last healthy save from before the crash, not starting the world over.
Hosting a group without a rented server
For a small group, Checkpoint64 covers most of what a rented dedicated server is for: a version history on the host's world plus a lock so only one session saves over it at a time, without a recurring bill. The dedicated server alternative guide covers Sons of the Forest alongside similar games and goes deeper on the trade-off.
How Checkpoint64 backs up Sons of the Forest
- Pick Sons of the Forest. The LocalLow save path is already known.
- Turn on auto-backup. Every 30 seconds it checks for a changed save and uploads a new version, sending only what changed.
- Restore in one click. Open Versions, pick a healthy version from before the crash, and Restore.