Core Keeper server guide: join, mods, settings and fixes

Updated 31 October 2026 · 3 minute read · Core Keeper (PC) · By Exclsv Support

Everything you need to run your Core Keeper server in HQ, in one page.

Join

Choose Join Game.
Type the Game ID shown on your server’s Join page (under Overview).
Choose Join.

Anyone with the Game ID can join; there is no server password.

Mods

No server mods yet.

Settings

Open Settings, then Game settings. Each setting has a plain label, one line of help and the game’s own default where HQ knows it. Most changes take effect at the next restart; HQ marks the ones that change straight away. Change the world name, mode and seed before the world is made.

Backups and going back

To go back, open Backups, then Automatic, pick a time from the last 48 hours and choose Go back. Your world as it is now is kept, so you can undo it.

If it doesn’t work

“Couldn’t connect”

Check the Game ID on the Join page. It changes if the server was reinstalled without one set.

Game version mismatch

Everyone needs the same game version as the server.

Still stuck? Ask on the Discord or email us.

Ask on the Discord [email protected]

Run this on Exclsv: Core Keeper server hosting, from £4.99 a month