How to Upload an Existing World to Your Space Engineers Server

Published June 9, 2026 · By Host Havoc Technical Support Team

If you have a world saved locally, you can upload it to your Space Engineers server and configure it to load automatically. This guide walks you through the process.

You will need an FTP client such as FileZilla. See Connect via FTP for setup instructions.

Steps

Find your local world folder

  1. On your computer, locate your local Space Engineers save. Saves are typically stored at: C:\Users\YourName\AppData\Roaming\SpaceEngineers\Saves\

Upload via FTP

  1. Connect to your server using an FTP client.
  2. Navigate to the \ServerSaveData\Saves\ directory on your server.
  3. Upload your local world folder into that directory.

Update LastSession.sbl

  1. In the Game Control Panel, click Configuration Files and open LastSession.sbl using the Config Editor.
  2. Change the World Name option to the name of the folder you just uploaded.
  3. Click Save & Exit.
  4. Start your server. It will now load the world you uploaded.

Tip: If you also have mods installed, make sure the World Name in SpaceEngineers-Dedicated.cfg matches the folder name you uploaded. A mismatch will prevent mods from writing to the correct save. See Fix Mods Not Loading for details.