Pre-generating a world on your Minecraft Fabric server can significantly enhance player experience by reducing lag caused by world generation during gameplay. This guide will walk you through pre-generating your server's world using Fabric-compatible mods.

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Step 1: Install a world pre-generation mod

Install a Fabric-compatible mod such as Chunky or another chunk pre-generator that supports your Minecraft version.

Option A — Package Manager (recommended)

1. Log in, open Your Servers, and select your Fabric server
2. Go to Package Manager → Install Package
3. Browse for the mod (often under Mods) and install it
4. Check View Queue if the install does not finish immediately

Option B — Manual upload

1. Go to Files → mods
2. Upload the mod .jar file
3. Or upload via SFTP from Settings → SFTP Access

Restart the server from Console after adding or updating mods.

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Step 2: Configure pre-generation settings

Most pre-gen mods are configured with in-game or console commands, not a separate panel screen.

With the server online, open Console and use the commands from your mod’s documentation. For Chunky, examples include setting a center, radius, and starting generation (for example chunky center, chunky radius, and chunky start).

Adjust the radius based on how far players are likely to explore and how much RAM your plan has.

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Step 3: Start and monitor pre-generation

Run the mod’s start command from Console (you need CONTROL_CONSOLE permission). Watch Console output until generation completes.

Pre-generation can take a long time for large radii. Schedule it during low-traffic periods if players are already on the server.

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Additional Tips

• Keep Fabric, your mods, and Minecraft version compatible — update through Package Manager or by replacing jars in Files → mods
• Create a backup from Backups before large world changes
• Open a support ticket at www.beaconhosting.org/billing/tickets if installs fail or the server will not start after adding a mod