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How to Pre Generate a Minecraft World illustrated for the CraftLands Minecraft docs
MINECRAFT · PERFORMANCE
lborg
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Published July 26, 2026
UPDATED 10 DAYS AGO

How to Pre Generate a Minecraft World

Learn how to pre generate a world in your Minecraft server with Chunky, generate Minecraft world without having to explore it.

What is Pre-Generation

World pre-generation means generating chunks in the background of your server before players explore them. The ultimate goal is to reduce lag when the player actually explores it.

Chunky is a Minecraft mod widely used by the servers to pre-generate their world.

What is Chunky

Chunky is a server-side minecraft mod that generate chunks in the background before players explore it. It lets your server load terrain off the hard drive instantly instead of making the CPU build it on the fly.

Pre-generating huge areas takes gigabytes of storage!

How to Install

To install Chunky, you will have to follow these steps:

  • Open and login to your server's dashboard.
  • Locate Mods section on the Sidebar.
  • Search "Chunky" on the Searchbar.
chunky-search.webp
  • Click Install icon of the Chunky mod.
  • Select the correct version and click Install again.

This will install the mod on your Minecraft Server.

Verify Installation

To verify the installation of your mod, navigate to the Files section of your panel, open the 'mods' folder, and check for the corresponding .jar file. If the file is present, the mod is successfully installed.

How to Use

Installing Chunky doesn't make it work automatically on your Minecraft server but it takes few steps to be activated.

  • Run this command to specific the world:
/chunky world world
  • Set the center location where pre-generation will begin with this command:
/chunky center
  • Set the Pre-Generation Radius with following command:
/chunky radius 5000
  • Use this command to finally start the pre-generation:
/chunky start

Important Notes

You must keep following in mind:

  • You must have a mod supported Software installed (such as Fabric) on your minecraft server.
  • You must restart your server after installing the Chunky mod to activate it.
  • Chunky is a server-side mod, and the players will have not to download it manually.

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