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Change the Seed of Your Minecraft Server

The world seed controls how a Minecraft server generates terrain, biomes, and structures. This guide explains how to change the level-seed value in the server.properties file of your Minecraft server, and why the existing world files must be removed first. Minecraft reads the seed only when it generates a world, so a new seed has no effect until the server creates a world from scratch.

Prerequisites

• Panel access with permission to manage the server. See Access the Panel for instructions.
• A backup of the current world folders, if you want to keep the existing world.
• The seed you want to use. A seed can be a number, such as 104764939073902, or text, such as mycoolseed.

Access the Panel

• Log in to the panel.
• Open the 1 Servers tab.
• Select the 2 server you want to change.

Stop the Server

• Click the Stop button on the Console tab and wait until the server is fully offline. A running server overwrites file changes when it shuts down.

Delete the World Files

• Open the 1 Files tab.
• Delete the 2 world directory. The server applies a new seed only when it generates the world again.
• Delete the world_nether and world_the_end directories as well. If these remain, the Nether and the End stay generated from the old seed.
• Locate and open the 3 server.properties file.

Edit Config File

• Press the 1 CTRL+F shortcut, type seed, and press ENTER to jump to the line.
• Edit the 2 level-seed line and enter the seed you want to use. A seed accepts numbers or text.
• Example 1: level-seed=104764939073902
• Example 2: level-seed=mycoolseed
• Click the 3 Save Content button to write the change to the file.

Start the Server

• Click the Start button. The server generates a new world from the seed you entered, which takes longer than a normal startup.
• Join the server and confirm the terrain differs from the previous world.

Troubleshooting

• The world looks the same as before. The world directory still exists. Stop the server, delete the directory, and start the server again.
• The Nether or the End looks unchanged. The world_nether or world_the_end directories were not deleted. Stop the server, delete both directories, and start the server again.
• The server does not start. Check the console output for an error in server.properties. Confirm the line uses the level-seed= format with no spaces around the = sign.
• The seed reverts after a restart. The file was edited while the server was running. Stop the server, edit server.properties again, and save the file before starting.

If you require further assistance, you can open a support ticket here.

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• Change the Seed of Your Minecraft Server
• Prerequisites
• Access the Panel
• Stop the Server
• Delete the World Files
• Edit Config File
• Start the Server
• Troubleshooting