Table of Contents

Can You Make an Existing Valheim Server Dedicated?

Yes, you can convert an existing Valheim world into a dedicated server, but it’s not a simple click-and-go process. It requires transferring the world save data and configuring a dedicated server environment. This involves file management, server setup, and ensuring your players can connect to the new dedicated server. It’s crucial to understand the steps involved to avoid data loss and ensure a smooth transition.

Understanding the Differences: Local vs. Dedicated Valheim Servers

Before diving into the process, it’s essential to understand the difference between a local Valheim server and a dedicated one.

Local Server

A local server is hosted directly on your computer while you’re playing the game. When you start a Valheim world and invite friends, your computer acts as the server. This is convenient for small groups, but it has significant drawbacks:

Performance Dependence: Server performance relies heavily on your computer’s capabilities and internet connection. If you experience lag, everyone else on the server will too.
Availability: The server is only online when you are actively playing. Your friends can’t access the world without you.
Resource Consumption: Hosting and playing the game simultaneously can strain your system, especially on lower-end computers.

Dedicated Server

A dedicated server runs independently of your personal game client, usually on a separate machine. This offers several advantages:

Improved Performance: The server machine dedicates all its resources to running the Valheim world, resulting in smoother gameplay for everyone.
24/7 Availability: The server can run continuously, allowing players to access the world at any time, even when you’re not online.
Better Stability: A dedicated server is less susceptible to crashes and performance fluctuations caused by your personal computer usage.

Converting Your Valheim World to a Dedicated Server: A Step-by-Step Guide

Here’s a detailed guide on how to convert your existing Valheim world to a dedicated server:

Step 1: Back Up Your World Save Data

This is the most important step. Before making any changes, create a backup of your Valheim world to prevent data loss.

Locate your save files: Navigate to the C:Users[YourUsername]AppDataLocalLowIronGateValheimWorlds directory. (You might need to enable “Show hidden files and folders” in Windows settings to see the AppData folder.)
Identify the correct world folder: Each world has two files: .db (database) and .fwl (world file). Make sure you identify the correct files by checking their last modified date.
Copy the files: Create a new folder (e.g., “ValheimWorldBackup”) and copy both the .db and .fwl files into it.

Step 2: Set Up Your Dedicated Server

You have two main options for setting up a dedicated server:

Host it on your own computer: Requires a separate computer that will be dedicated to running the server.
Rent a server from a hosting provider: This is the easiest option, offering pre-configured servers with technical support. Popular providers include GTXGaming, Nodecraft, and Pingperfect.

The following instructions assume you are setting up a server on your own computer. However, the principle of transferring save files will be similar with hosting providers.

Install the Valheim Dedicated Server: If you’re using Steam, navigate to your Library, select “Tools” in the filter, and search for “Valheim Dedicated Server”. Install it.
Configure the server settings: Find the start_headless_server.bat file in the Valheim Dedicated Server folder (usually located in C:Program Files (x86)SteamsteamappscommonValheim Dedicated Server). Right-click and select “Edit”.
Modify the batch file: You need to change the parameters in the batch file to reflect your desired server settings. Here’s an example:
```
@echo off start valheim_server.exe -name "My Valheim Server" -port 2456 -world "MyWorldName" -password "MyPassword" -public 1 
```
- -name: The name of your server.
- -port: The port your server will run on (default is 2456).
- -world: The name of your world (this must match the filename of your .db and .fwl files without the extension).
- -password: The password required to join the server.
- -public: Set to 1 if you want the server to be listed publicly.
Save the batch file.

Step 3: Transfer Your World Save Data to the Dedicated Server

Locate the server’s world save folder: This is usually in the same location as the local save files but will be inside the Valheim Dedicated Server installation directory: C:Program Files (x86)SteamsteamappscommonValheim Dedicated ServerWorlds. If the folder doesn’t exist, launch the dedicated server once and then close it, which should create the necessary folders.
Copy the .db and .fwl files: Copy the .db and .fwl files from your backed-up world folder (the one you created in Step 1) into the server’s Worlds folder.
Ensure the world name matches: Make sure the world name used in the start_headless_server.bat file exactly matches the filename (without the extension) of the .db and .fwl files you just copied.

Step 4: Start Your Dedicated Server

Run the start_headless_server.bat file: Double-click the file to start the server. A console window will appear, displaying server logs.
Check for errors: Monitor the console for any errors. If there are errors, double-check your configuration and file paths.

Step 5: Connect to Your Dedicated Server

Launch Valheim.
Click “Join Game”.
Select the “Community” tab (or “Friends” if a friend is hosting it).
Find your server in the list (if it’s public) or use the “Join IP” option and enter your server’s IP address and port (e.g., your_ip_address:2456).
Enter the password (if you set one).
Join the server.

Troubleshooting Common Issues

Server not appearing in the list: Ensure the server is running correctly (check the console for errors). Verify that your firewall is not blocking the Valheim server’s port (default 2456). Also, double-check the -public setting in the start_headless_server.bat file.
Connection refused: Double-check the IP address and port you are using to connect. Ensure that the server is running and that your firewall is not blocking the connection.
World data not loading: Verify that the .db and .fwl files are in the correct directory and that the world name in the start_headless_server.bat file matches the filenames.
Performance issues: If you experience lag, consider upgrading the server’s hardware or reducing the number of players online.
Conflicting Ports: Ensure that the port being used for the Valheim server isn’t already being utilized by another application on the same machine.

Frequently Asked Questions (FAQs)

1. What are the minimum system requirements for hosting a Valheim dedicated server?

The minimum requirements typically include a quad-core processor, 8GB of RAM, and a stable internet connection. However, for optimal performance with a larger number of players, consider a more powerful setup with a dedicated CPU and sufficient RAM. A solid-state drive (SSD) can also improve loading times.

2. How do I update my Valheim dedicated server?

The simplest way is through SteamCMD. You’ll need to use commands to log in, validate the Valheim Dedicated Server installation, and update it to the latest version. Many hosting providers offer automated update features.

3. Can I use mods on a dedicated Valheim server?

Yes, but you’ll need to install a mod loader like BepInEx. Installing mods on a dedicated server can be more complex than on a local client. Be sure to carefully follow the mod installation instructions, and ensure all players on the server have the same mods installed to prevent compatibility issues.

4. How do I add admins to my Valheim dedicated server?

You can add admins by editing the adminlist.txt file located in the Valheim Dedicated Server folder. Add each admin’s SteamID64 on a new line.

5. How do I back up my dedicated Valheim server?

Regular backups are crucial. You can manually copy the .db and .fwl files from the server’s Worlds folder to a safe location. Some hosting providers offer automated backup solutions. Aim to backup at least once a day.

6. Can I transfer my character from a local game to the dedicated server?

Yes, you can transfer your character files located in C:Users[YourUsername]AppDataLocalLowIronGateValheimCharacters. Copy both the .fch and .fch.old files to the same location on the client computer that will connect to the dedicated server.

7. How do I change the server name after it’s set up?

You need to modify the -name parameter in the start_headless_server.bat file and restart the server.

8. What port forwarding do I need to do to host a Valheim dedicated server?

You typically need to forward UDP port 2456 on your router to the internal IP address of the server machine. Some hosting providers handle port forwarding automatically.

9. Is it better to host a Valheim dedicated server on Windows or Linux?

Both operating systems can run Valheim dedicated servers. Linux is generally considered more resource-efficient and stable for server applications. However, Windows is easier to set up for users familiar with that environment.

10. How can I monitor my Valheim dedicated server’s performance?

You can use the server console window to monitor CPU and RAM usage. There are also third-party tools that can provide more detailed performance metrics.

11. What happens if my server crashes?

Valheim automatically saves the world data frequently. The amount of data lost after a crash is minimal. The game client can usually reconnect automatically. If not, you can manually reconnect. Restart the server to get back to playing as quickly as possible.

12. Can I change the world seed of an existing dedicated server?

No, you cannot change the world seed of an existing dedicated server without starting a new world, and thus losing all existing progress on the server. The world seed is determined when the world is created.

13. How do I prevent griefing on my Valheim dedicated server?

Set a strong password, add trusted players as admins, and consider using mods that offer grief prevention features.

14. What if my friends can’t connect to my dedicated server?

Ensure that the server is running, the IP address is correct, the port is forwarded properly, and that your firewall isn’t blocking the connection.

15. How do I use server commands in Valheim?

Server commands require admin privileges. Once you’ve added yourself as an admin, you can use the F5 key to open the console and enter commands. A complete list of available commands can be found on the Valheim Wiki.

Can you make an existing Valheim server dedicated?