How to Upload an Existing Factorio Save to Your Server

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Factorio factories live for years, and moving one to a dedicated server does not mean starting over: any single-player or co-op world can become the server's world. A Factorio save is a single .zip file, which makes the move about as easy as it gets.

Find your local save

  • Windows: %APPDATA%\Factorio\saves
  • Linux: ~/.factorio/saves
  • macOS: ~/Library/Application Support/factorio/saves

Each world is one zip named after the save.

Upload it

  1. Stop the server from the Command Center first. A running server keeps autosaving, and an autosave written after your upload would win the "latest save" race below.
  2. Upload the save zip into the server's saves/ folder using the Command Center's File Manager or FTP.
  3. Start the server. Factorio dedicated servers load the most recently modified save, and your fresh upload is exactly that: your factory is now the server world.

Before you upload

  • Mods must be installed first. If the save was played with mods, install the same set on the server before uploading. See How to Install Mods on a Factorio Server.
  • Space Age saves need Space Age enabled on the server (and vanilla saves need it disabled). See Factorio Space Age Server Guide.
  • Versions move forward, never back. A save from an older Factorio version migrates automatically when the server loads it; a save from a newer version than the server will not load. SurvivalServers keeps servers on the latest stable release automatically, so in practice you only hit this if your own game runs an experimental build.

Downloading works the same way in reverse: grab any zip from saves/ to take your world home.

No server yet for that ten-year factory? Rent Factorio server hosting and upload your save minutes after checkout.

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