Make the change
- Record World Index, World Name and the current Game ID before making changes.
- Stop the server and take a backup of its existing save data.
- Keep World Index unchanged when continuing the same world.
- If you want a persistent Game ID, use the valid ID generated by this server in the Game ID field rather than inventing a short name.
- Start and read GameID.txt or Console for the active ID, then reconnect and inspect familiar structures.
| Panel field | What to keep in mind |
|---|---|
| World Index | Selects the Core Keeper world slot. Keep the current index when you intend to continue the same world. |
| World Name | Names the Core Keeper world. World Index selects the save slot; changing this name is not a way to select a different saved world. Up to 100 characters. |
| Game ID | Core Keeper’s connection identifier. Keep the existing valid ID to avoid changing the code your group uses; an empty or invalid value causes the game to generate another one. |
Check the result
If the server issues a new ID despite your setting, check the field’s validation rules and whether the supplied value was accepted. Do not publish a new world seed as though it were a connection ID.
Related guides
Core Keeper server not showing up or unable to connect · Core Keeper server settings: Startup and configuration
Documentation
Server configuration reference
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