Setting up a Factorio server

Updated 4 Nov 2026

Join your server

Factorio starts in about a minute and makes a new map. In the game, choose Multiplayer, then Connect to address. The address and port are at the top of your server page in the panel.

Show it in the public list

  1. Copy your token from factorio.com/profile.
  2. On the Startup tab, set Server Username and Server Token.
  3. Restart.

The basic settings

SettingWhat it does
Server NameThe name in the list.
Server passwordEmpty for no password.
Save NameThe save to load, without .zip.
Auto Save IntervalMinutes between autosaves.

Use your own save

  1. Find your save in %appdata%\Factorio\saves.
  2. Upload it to saves in the File Manager.
  3. Set Save Name to its name without .zip and restart.

Admins

Put usernames in server-adminlist.json, like ["yourname"], and restart.

Problems

It is not in the public list

Check your username and token on the Startup tab.

My save will not load

The server must be the same Factorio version or newer.

Mod mismatch

Accept the mod sync when joining.

Still stuck? Open a ticket and we will take a look.
Open a ticket

More guides