Where Are Subnautica Saves Located?
Subnautica save slots on PC in SNAppData SavedGames plus the Steam userdata copy under app ID 264710.
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Subnautica keeps save slots in a SavedGames folder under SNAppData next to the game install, with slot0000 style subfolders. A Steam userdata copy under app ID 264710 mirrors progress for cloud sync.
The two copies explain conflicting guides. Local play reads the SNAppData tree; the userdata copy is the sync vehicle.
Where Subnautica stores this, by platform
C:\Program Files (x86)\Steam\steamapps\common\Subnautica\SNAppData\SavedGames
Primary live location. Slots are slot0000 style subfolders with cache batches inside. Copy whole slot folders with the game closed.
C:\Program Files (x86)\Steam\userdata\[SteamID]\264710\remote
Steam Cloud mirror under app ID 264710. Replace the Steam path and Steam ID with your own. Useful when the install-drive copy is unreachable.
Frequently asked questions
How do I back up one Subnautica survival run?
Each slot is a slot0000 style folder inside SavedGames. Copy individual slot folders for single runs, or the whole SavedGames tree for everything.
Is it safe to delete the cache batch files?
Yes. Cache batches regenerate from the slot data on load. Clearing it is the standard fix for terrain pop-in and missing-asset glitches after updates.
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