Where Are Moonstone Island Save Files Located?
Moonstone Island saves live in Saved Games\Moonstone Island on Windows, Documents on Mac, and straight in home on Linux.
Last updated
Moonstone Island puts saves in plain sight rather than hidden app data. Windows uses the Saved Games folder, Mac uses Documents, and each save slot is its own folder with .dat files inside.
Linux is the odd one. Saves sit directly in the home directory under ~/Moonstone Island, which the developers themselves have admitted is unusual. Do not mistake it for clutter and delete it during a cleanup.
Where Moonstone Island stores this, by platform
%USERPROFILE%\Saved Games\Moonstone Island
Each slot is a subfolder like Game1 with .dat files inside. Back up the whole Moonstone Island folder. A settings.cfg file next to the saves holds options, and deleting it resets graphics without touching progress.
~/Documents/Moonstone Island
Same layout as Windows: one folder per slot. If Documents is synced to iCloud, the saves ride along, which is convenient until a sync conflict duplicates a slot.
~/Moonstone Island
Directly in home, not under .config or .local/share. This placement surprises people and has drawn complaints upstream, so leave the folder alone when tidying dotfiles.
Frequently asked questions
how do i back up moonstone island saves
Copy the entire Moonstone Island folder for your OS with the game closed. Each slot folder restores independently, so you can also rescue a single run by copying just its Game folder back.
my moonstone island save is broken, what can i try
Back up first, then check the slot folder for stray duplicate .dat files from a sync or crash and keep only the newest set. If settings are the problem, delete settings.cfg and let the game rebuild it.
where are moonstone island saves on steam deck
The Linux build runs natively, so look in the home directory for a Moonstone Island folder. Desktop mode plus hidden files shown makes it easy to spot.
Notice an outdated path? Let us know.