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Core Keeper Admin and World Management


Core Keeper Admin and World Management

This guide covers admin commands, world modes, world seeds, and world management for your Core Keeper dedicated server on Legion Hosting. For initial server setup, startup variables, and Game ID configuration, see Core Keeper Server Setup Guide.


Admin Controls

Core Keeper provides in-game admin and management capabilities for server hosts.

Adding and Removing Admins

Admin management in Core Keeper is handled through in-game commands and the server console. The server host (the account that created the world or the first player to join) typically has admin privileges by default.

To manage admin access:

  • Use the in-game chat to execute admin commands.
  • Admin privileges allow kicking, banning, and managing players on the server.

Common Admin Commands

The following commands can be used in the in-game chat by players with admin privileges:

Command Description
/kick <player> Kicks a player from the server. They can rejoin with the Game ID.
/ban <player> Bans a player from the server. They will be unable to rejoin.
/unban <player> Removes a ban, allowing the player to rejoin.

World Modes

Core Keeper supports two world modes, set via the WORLD_MODE startup variable in GPanel. The mode is locked in at world creation and cannot be changed after the world is generated.

Mode Value Description
Normal 0 The standard Core Keeper experience. Balanced enemy difficulty, standard loot drops, and regular resource availability. Recommended for most players and new servers.
Hard 1 Increased enemy damage and health, reduced loot drops, and a more punishing survival experience. Designed for experienced players looking for a challenge.
World mode is permanent: Once a world is created with a specific mode, it cannot be changed. To switch modes, you must create a new world using a different WORLD_INDEX or reset the existing world.

World Seeds

The WORLD_SEED startup variable controls the procedural generation of your world. Seeds determine the layout of the map, including biome placement, resource distribution, and dungeon locations.

  • Random seed (0): The default. The server picks a random seed when generating a new world. This produces a unique world layout each time.
  • Specific seed: Enter any integer value to generate a world with a predetermined layout. Using the same seed will always produce the same world.
Seeds only apply to new worlds. Changing the seed after a world has already been generated will have no effect. The seed is used once during initial world creation. To use a new seed, you must use an unused WORLD_INDEX or reset the existing world.

Setting a Specific Seed

  1. In GPanel, go to the Startup tab.
  2. Set WORLD_SEED to the desired integer value.
  3. Ensure you are using a WORLD_INDEX that does not already have a generated world (or reset the current world first).
  4. Start the server. The new world will generate using your chosen seed.

World Management

Multiple World Slots

Core Keeper supports multiple world save slots via the WORLD_INDEX startup variable. Each index stores a completely separate world with its own terrain, progress, and player data.

  • WORLD_INDEX=0 — First world slot (default).
  • WORLD_INDEX=1 — Second world slot.
  • WORLD_INDEX=2 — Third world slot, and so on.

To switch between worlds, change the WORLD_INDEX value in the Startup tab and restart the server. Only one world can be active at a time.

Resetting a World

To reset a world and start fresh:

  1. Stop the server in GPanel.
  2. Open the File Manager in GPanel or connect via SFTP.
  3. Locate and delete the world save files for the WORLD_INDEX you want to reset.
  4. Start the server. A new world will be generated using the current WORLD_SEED and WORLD_MODE settings.
Deleted worlds cannot be recovered. Always download a backup before deleting any save files. Use GPanel's File Manager or SFTP to download the world data to your local machine first.

Backing Up Your World

Regular backups are strongly recommended, especially before updates or major changes:

  1. Stop the server in GPanel to ensure save data is not being written.
  2. Connect to your server via SFTP or use the GPanel File Manager.
  3. Download the world save files for your active WORLD_INDEX.
  4. Store the backup on your local machine or cloud storage.
Tip: Back up before every game update. If an update causes issues, you can restore your previous save files by re-uploading them and reverting the server version.

Difficulty Changes

The WORLD_MODE setting (Normal or Hard) is set at world creation and cannot be changed on an existing world. If you want to switch difficulty, you will need to:

  1. Change WORLD_MODE in the Startup tab to the desired value (0 or 1).
  2. Use a new WORLD_INDEX that does not have an existing world, or reset the current world.
  3. Restart the server to generate a fresh world with the new difficulty.
Changing difficulty requires a new world. There is no way to change the difficulty of an existing Core Keeper world. Plan your world mode choice before investing significant playtime.

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Need More Help?

If you are experiencing issues not covered in this guide, our support team is available to assist. Open a ticket at legionhosting.net/submitticket.php with your server details and a description of the problem.


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