Hearth syncs your Sons of the Forest multiplayer saves through Google Drive automatically. No more waiting for one person to log in just to continue your base. Anyone in your group can pick up where you left off.
Your base, your bunkers explored, your resources stockpiled — all of it lives on the host's machine. When they go offline, every member of your group is stranded.
Your group has built up a solid base, explored multiple bunkers, and survived wave after wave. Then the host goes dark for a few days. All of that progress is locked on their PC with no way to continue until they come back.
Sons of the Forest stores saves in randomly numbered folders inside a Steam ID folder. Switching hosts manually means finding the right numbered save folder, copying five specific player files, placing them in exactly the right location on another player's machine — and getting any step wrong breaks the save.
Before anyone can take over as host, they must have created and hosted at least one multiplayer lobby previously — otherwise the required save folder doesn't even exist on their machine. This means the group has to plan ahead before someone goes offline.
Important for Sons of the Forest: Hearth syncs your Multiplayer save folder — the host's save. Each player also needs to have hosted a lobby at least once so their local Multiplayer folder exists before Hearth can place the synced save there.
Hearth handles the multiplayer save folder automatically — no numbered folder hunting, no manual file copying, no getting the wrong save.
Before Hearth can sync to a player's machine, they need the Multiplayer save folder to exist. Each person in your group should create and host one multiplayer lobby in Sons of the Forest to generate it. Do this before setting up Hearth.
Open Hearth, find your Sons of the Forest world, and check the share box. Hearth pushes the multiplayer save folder to your shared Google Drive folder automatically.
When Sons of the Forest launches, Hearth locks the shared save and pulls the latest version from Drive. You're always starting from the freshest save, with the correct player files in place.
When the game closes, Hearth pushes the updated save to Drive. The next player pulls it when they open Hearth and can host using Multiplayer → Host Game → Load Game in the menu.
No server setup. No numbered folder hunting. No multi-step manual host transfers. Just your shared world, ready for whoever is online.
Hearth handles the multiplayer save folder automatically. No hunting through randomly numbered Steam ID folders or copying five specific files.
When Sons of the Forest launches, Hearth locks the shared save. No accidental overwrites while someone is mid-session.
Local backups every 25 minutes while you play. Never lose more than 25 minutes of base building or bunker exploration.
Saves go to your own Google Drive. No third-party servers, no subscription, no account with us. You control your saves.
Every line of code is public on GitHub. Read exactly what Hearth does with your save files before you run it.
No trial. No premium tier. Free because surviving on a cannibal island is hard enough without scheduling conflicts.
%USERPROFILE%\AppData\LocalLow\Endnight\SonsOfTheForest\Saves\[SteamID]\Multiplayer. Each save is in a numbered folder. Hearth finds the correct folder automatically based on your Steam ID.Free download. Open source. Five minutes to set up. No account required on our end — just a Google Drive folder your group shares.
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