How to mod a Project Zomboid server safely — cover image

How to mod a Project Zomboid server safely


How to Mod a Project Zomboid Server Safely

Project Zomboid is a survival game that offers players an opportunity to create and manage their own zombie-infested world. As with any game modding, there are risks involved, but by following these steps, you can safely and responsibly add new features or content to your server.

1. Backup Your Server

Before starting any modifications, it’s important to back up your current server files. This ensures that you have a working version of the server in case anything goes wrong during the modding process. You can typically find backup options within the game’s management console or by using external tools provided by Klin.

2. Understand the Server Files

Before making any changes, familiarize yourself with the structure and functionality of your server files. This includes understanding how different files interact and what each file does. You can do this by exploring the server folder on your hosting provider’s dashboard or using tools like FileZilla.

3. Choose Your Modding Method

Project Zomboid allows for various modding methods, including scripting with Lua, which is a popular choice due to its simplicity and flexibility. If you’re not comfortable with programming, consider starting with scripts that others have created or tutorials available online.

4. Create or Modify Scripts

If you choose to write your own mods using Lua, start by creating a new script file within the server’s scripts directory. Here are some basic steps:

  • Identify the Functionality You Want: Determine what specific functionality you want to add. This could be something like automatic spawning of zombies, increased loot drop rates, or custom UI elements.

  • Write the Lua Code: Use a text editor to write your Lua script. Be sure to test it on a small scale before deploying it on your entire server.

  • Test Your Script: Run your script in-game to ensure it behaves as expected. Pay attention to any errors that might occur and adjust your code accordingly.

5. Deploy Your Mod

Once you’re satisfied with your mod, deploy it to your server by copying the modified files back to the scripts directory on your hosting provider’s dashboard or using tools like FileZilla.

Note: Always Test Your Mods in a Safe Environment

Before deploying a new script to your entire server, test it in a small group of players to ensure it behaves as intended. This will help you catch any bugs or issues before they affect everyone on the server.

6. Document Your Changes

Keep a record of all modifications you make to your server files and scripts. This documentation will be helpful if you need to troubleshoot issues in the future or if you want to share your mod with other players.

Question: Do You Have Any Questions About Modding Project Zomboid Servers?


Klin offers cheap dedicated servers split into game server instances, including support for private hosting and community servers. If you’re interested in hosting a Project Zomboid server or need guidance on modding your own instance, consider reaching out to Klin’s support team.


This article provides a basic guide to safely modifying a Project Zomboid server using Lua scripting. By following these steps, you can add new features and enhance the gameplay experience for your players without risking server stability or data loss.