How To Pre-Generate Your World using Chunky?

When players explore new areas of your server, Minecraft has to generate those chunks in real time - which can cause lag spikes and a poor experience for everyone online. Chunky is a plugin/mod that lets you pre-generate a set area of your world ahead of time, so all the chunks are ready before players ever step foot there.

This guide covers how to install Chunky, configure a generation area, and start the pre-generation process.

Step 1: Install Chunky

1. Head over to the Game Panel and stop your server.
2. Navigate to Addons → Plugins or Mods depending on whether it supports mods or plugins.
3. Search for Chunky and click Install.

4. Start your server and confirm Chunky loaded by checking the Console for a message from Chunky on startup.

Step 2: Configure the Pre-Generation Area

Run the following commands in the Console or in-game. You do not need to stop the server for this step.

1. Select the world you want to pre-generate by running chunky world <world>, replacing <world> with the name of your world.

2. Set the center of the pre-generation area by running chunky center <x> <z>, replacing <x> and <z> with your desired coordinates. Using chunky center 0 0 centers the area at the middle of the world.
3. Set the radius of the pre-generation area by running chunky radius <radius>, replacing <radius> with the number of blocks you want to generate outward from the center. A radius of 10000 generates a 20,000 x 20,000 block area.

4. Optionally, run chunky selection to review your configuration before starting.

Step 3: Start and Monitor Pre-Generation

1. Run chunky start to begin pre-generating the selected world.

2. Run chunky progress at any time to check how far along the process is.

3. Run chunky pause to pause the task, or chunky cancel to stop it entirely if needed.
4. If you paused the task, run chunky continue to resume it.

Pre-Generating Multiple Worlds

You can repeat the process for the Nether and The End by running chunky world world_nether or chunky world world_the_end and configuring a new radius. A radius of 2500 to 5000 is usually sufficient for those dimensions since players tend to travel less there.