Importing a Factorio save

Bring your existing factory with you using Importer on your Factorio service.

1. Stop Factorio and keep a copy of both your current server save and the save you are importing.
2. Open Importer and upload your saved-world archive. The uploader accepts ZIP, RAR and 7z archives.
3. Wait for the upload, analysis and extraction to finish. Note the save name shown in the completion message.
4. Open Settings, select Map Settings and set Map Name to the imported save's name, without .zip. Save the change.
5. Check the required mods and DLCs, then start the server.

If a file with the same name already exists, the importer keeps the previous file with a backup suffix before replacing it. Still keep your own copy before importing, particularly when moving an established factory between game versions.

If the server does not load the expected factory, stop it and check the filename under factorio/saves in Files, then compare it with Map Name.