Subnautica-update-84-installation-tutorial -

If you are looking for Update 84 specifically to maintain compatibility with older mods or for speedrunning purposes, you can manually revert your game version using the Steam Console.

If you are playing on a modern platform, the update should be applied automatically without manual intervention.

: In the console, use the command structure download_depot . For Subnautica Windows, the AppID is 264710 and the DepotID is 264712 . subnautica-update-84-installation-tutorial

: Your console will prompt you to download the update before launching the game while connected to the internet. Manual Downgrade to Update 84 (Advanced Users)

For a visual walkthrough on how to access and install specific legacy versions of the game, check out this guide: If you are looking for Update 84 specifically

: If your Steam client is open, it will automatically detect the update and begin downloading it. If it doesn't, right-click Subnautica in your Library, select Properties > Installed Files , and click Verify integrity of game files to force an update check.

: These launchers also handle updates automatically upon startup. For Subnautica Windows, the AppID is 264710 and

: Once the download is complete, Steam will provide a file path (usually under Steam\steamapps\content\app_264710 ). You can move these files to a separate folder to run that specific version.