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Worldborder Core

A mod that adds a world border core that requires resources to expand the border. Very cool!

Fabric
Loaders
Fabric
Downloads on Modrinth
438
Followers on Modrinth
2
versions
13
Updated
January 30, 2026Jan 30
Published
in 2026

At a glance

Runs on Fabric
For Minecraft 1.20.1, 1.21.1 …
Needed on the server; optional in the game
Latest version — 1.6.2+1.21.1 from January 30, 2026
Requires Fabric API
License MIT — free
Where it's needed
In gameoptionalOn serverrequired

Needed on the server; optional in the game

Game versions1.19.2, 1.20.1, 1.21.1

This Minecraft mod adds a worldborder core. To create it, you need to use the

/worldbordercore spawn

command in a world where there is a barrier.

Worldborder Core functionality:

  • Searches for obtainable blocks or materials inside the barrier and randomly selects an item type from the list.
  • If you throw the required number of items into the core, it will explode and increase the barrier area by 10 blocks.
  • After the explosion, the core recalculates the probabilities and selects the next item type.
  • If the required number of items is not provided to the server within ~6 hours of real time, the item type will be updated to another.
  • The item type can be rerolled with a diamond block.
  • On border increase core can give 2-5 diamonds with 10% chance.

Can be configured via mod menu.

Note: This mod needs to be installed on the client also to render the base model and animations. It can be run on the server side only, but the user experience will be worse.

FAQ

How to install Worldborder Core?

Install Fabric for your Minecraft version, download Worldborder Core for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Worldborder Core support?

Worldborder Core has builds for Minecraft 1.19.2, 1.20.1, 1.21.1.

Is Worldborder Core needed on the server?

Needed on the server; optional in the game

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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