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Core Keeper: updates, settings and interface

Game updates, plugin versions and improvements to our interface with a traceable history.

Recorded, available and installed are different states. Your actual installation status and suitable updates are shown in the server panel.

Game update Published

Get Creative with Our Cozy Caverns Update!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

CK - Patch Notes - 0.4.4

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

We’ve Updated the Core Keeper Roadmap!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Developer announcement Published

Happy National Fishing Month, Explorers!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

Sharing Your Core Keeper Clips!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

Creature Compendium Part 3

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

We’re Going on Vacation!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Game update Published

Core Keeper - Patch Notes - 0.4.3

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Developer announcement Published

We’re Looking for Moderators!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

Thank you for ONE MILLION Sales!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

Sharing More of Your Core Keeper Creations!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Game update Published

Core Keeper - Patch Notes - 0.4.2

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Developer announcement Published

We've Expanded the Core Keeper OST

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Game update Published

Hotfix Patch - 0.4.1

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

Introducing Core Keeper’s First Major Update: The Sunken Sea Update!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

Core Keeper - Patch Notes - 0.4.0

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Developer announcement Published

Keep an eye out for Core Keeper in IGN’s Summer of Gaming and the PC Gaming Show

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

Top Tips for New Explorers!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Developer announcement Published

Thank You for Taking Part in Our Spring Challenge!

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Game update Published

Hotfix Patch - 0.3.13

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

What the interface looks like

The image shows the interface on its capture date; earlier versions may differ.

Excerpt of the current interface with sample values. Values and prerequisites illustrate the controls; available tools depend on server software, plugins and permissions.
Excerpt of the current interface with sample values. Values and prerequisites illustrate the controls; available tools depend on server software, plugins and permissions. · Captured on 2026-10-08

What the settings do

These values come from our guided editors. Defaults are the editor starting values; they do not show the contents of a customer server.

World index

Number of the world to load. Default: 0. Whole numbers from 0 only. A different index selects a different save.

Setting
WORLD_INDEX
Default
0
Range / options
0 – …
When it takes effect
Takes effect after saving and restarting the server.
Server name

Server display name, 3–100 characters. The world index selects the save. Restart after saving.

Setting
WORLD_NAME
Default
Core Keeper Server
When it takes effect
Takes effect after saving and restarting the server.
World seed

Seed for a newly generated world. This field accepts whole numbers from 0; 0 generates a random seed. An existing world keeps its seed.

Setting
WORLD_SEED
Default
0
Range / options
0 – …
When it takes effect
Takes effect after saving and restarting the server.
Maximum players

Maximum number of players connected at the same time. Set by the server and read-only here.

Setting
MAX_PLAYERS
Default
100
Range / options
1 – 100
When it takes effect
Takes effect after saving and restarting the server.
Hard world mode

Off: normal mode. On: hard mode for a newly generated world. An existing world keeps its mode.

Setting
WORLD_MODE
Default
0
When it takes effect
Takes effect after saving and restarting the server.
Automatic updates on startup

Enables automatic game updates when the server starts. Find the switch under Updates.

Setting
AUTO_UPDATE
Default
1
When it takes effect
Takes effect after saving and restarting the server.