Space Engineers server guide: join, admins, settings and fixes
Updated 2 November 2026 · 3 minute read · Space Engineers (PC) · By Exclsv Support
Everything you need to run your Space Engineers server in HQ, in one page.
Join
- In Space Engineers, choose Join Game, then the Servers tab.
- Search for your server’s name.
Your world
On its first start the server makes a new Star System world. To use your own, stop the server, upload the save folder (with Sandbox.sbc inside) as config/Saves/World and start it.
Mods
Add Steam Workshop mod IDs to the Mods list in the world’s Sandbox_config.sbc while the server is stopped; the server downloads them when it starts.
Admins
Add Steam IDs inside <Administrators> in config/SpaceEngineers-Dedicated.cfg while the server is stopped. Admins use the admin screen in game (Alt+F10).
Backups and going back
HQ takes an hourly backup (Automatic backups) and keeps each for up to 48 hours, plus an off-site backup every 6 hours with 7 daily copies. To go back, open Backups, then Automatic backups, pick a time and choose Go back. Your world as it is now is kept, so you can undo it.
If it doesn’t work
It crashed after a big patch
Space Engineers’s server runs on Windows only, so we run it through Wine. Big game patches can need a fix on our side first: use Undo update to go back to the previous build, and open a ticket so we can check.
Run this on Exclsv: Space Engineers server hosting, from £17.99 a month