ModsJava
Worldborder Core
Java mod listed for Minecraft 1.19–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
This Minecraft mod adds a worldborder core. To create it, you need to use the
/worldbordercore spawncommand 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.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1, 1.19.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as worldborder-core-1.6.1+1.19.2.jar — drop this file into the mods folder
- Download size: 110 KB
- Download link checked 24 Oct 2026 — working
These come from our own check of the pack file, not from the source page.