Open My Servers, choose your Core Keeper server, and open Settings. The owner can select Show connection details to reveal the direct address, password, a copyable direct join code, and Steam Game ID. Share connection details privately with invited players.

Join with the direct address

1. Start the server and wait until its status shows that it is running.
2. Ask the owner to copy the Direct join code from Settings.
3. In Core Keeper, open the multiplayer join options and choose Join Game via IP.
4. Paste the code into the IP field. Core Keeper reads the public address, allocated public port, and direct-connect password from the code.
5. If the connection fails, confirm the server is running and the address, port, password, and platform restriction are current.

The code uses Core Keeper’s documented IP;PORT;;PASSWORD format. MaximusHost supplies the public IP and allocated public port; customers do not need to change the server IP or container port in Files. The code contains the password, so share it privately.

Join with the Steam Game ID

The owner may also share the Steam Game ID shown in Settings. In Core Keeper’s multiplayer menu, choose the Game ID option and enter the code. Pugstorm labels it Steam Game ID because it can only be used by Steam clients. The installed server’s README confirms that enabling direct connections with -port does not remove the Steam Game ID option.

Seeing a generated Game ID confirms that the server produced an ID; it does not confirm that Steam relay joining is currently reachable. If a Steam Game ID join fails, use the direct join code instead. If the ID is not shown yet, start the server and refresh connection details.

Storefronts and consoles

Core Keeper supports cross-play between supported PC storefronts through direct connections. A Steam Game ID is Steam-only. Core Keeper does not support cross-play between PC and consoles. See Pugstorm’s dedicated-server update notes for its clarification about the Steam Game ID.

If the server restricts players to a specific PC storefront, every player must use that storefront. The owner can change this setting under Settings → Season and platform.

Password and invitations

Direct connections use the direct-connect password. Do not post the password or Steam Game ID in a public channel.

The owner can grant a Discord Get Password permission to selected users. That permission reveals the direct-connect password through the bot’s private response. It does not reveal the Steam Game ID.

See Settings and World Options, Troubleshooting, and Backups and Restore.