Your own Valheim server is worth it if your world should be reachable independently of a single host. To do this, you rent a Dedicated Server, define the world, password, ports, and optionally crossplay, and then check whether joining works via the server list, IP, or join code.
Requirements
For Valheim, you need a purchased game version, access to server management, and the details for IP, port, and password. For small co-op groups, a server with at least 4 GB RAM is a sensible starting point; larger bases, many explored areas, and several active players increase resource requirements.
Valheim supports Dedicated Servers for persistent worlds. The official Valheim documentation describes the Dedicated Server as a way to provide a world where friends can play at any time: documentation at valheim.com. Iron Gate also lists the relevant startup parameters there, including -name, -world, -password, -port, -public, and -crossplay.
If you are comparing other survival setups, the Rent and Set Up an ARK Server – Beginner Guide 2026 and the Rent and Set Up an Enshrouded Server – Co-op Guide will also help you. Both cover similar questions about access, world management, and stable co-op workflows.
Order a Server and Define Basic Details
Open the Valheim server page at /en/valheim-server-mieten, choose a suitable configuration, and order the server. After setup, you should note at least these details: server IP, game port, admin or panel access, startup parameters, world name, and password.
Use a unique password. The official Dedicated Server guide points out that the password, server name, and world name should not be identical. This is not only cleaner operation, but also prevents easily avoidable startup problems.
Important Startup Parameters
The central settings are set via the startup line. The existing example block remains a good basis for this:
-name "My Valheim Server"
-world "MyWorld"
-password "secret"
-port 2456
-public 1
-name is the visible server name. -world determines which world file is loaded or created. -password protects access. -port 2456 sets the base port. -public 1 makes the server publicly visible; with -public 0, it stays out of the public list and is only reachable directly.
Make sure not to keep changing the world name and server name. A changed world name can cause Valheim to create a new world even though the old world file still exists.
Ports, Steam Backend, and Crossplay
With the classic Steam backend, the Valheim ports must be reachable from the internet. According to the official Valheim documentation, the server uses the port range 2456-2457 by default. If you host yourself, this affects the router and firewall; with rented hosting, this network work is normally part of the server platform or represented in the panel.
If you enable crossplay, the server runs via the crossplay backend. To do this, add the startup parameter:
-crossplay
Crossplay is relevant if players should join from different platforms. Valheim's official crossplay FAQ also explains the join-code approach for cross-platform connections: documentation at valheim.com. Important: crossplay changes how players find and connect to the server. After enabling it, check not only the classic server list, but also the join code or crossplay connection.
Join the Server
Via Steam
Open Steam, go to View, then Servers. Under Favorites, you can add a server. Enter the server IP and port. Depending on the display, the query port may be relevant; if the direct entry does not work, also test connecting from within the game.
In the Game
Start Valheim, select your character, and open the join area. Search for the server via the community server list or use direct entry of IP and port. Then enter the server password. With crossplay, use the join code if your panel or the server console outputs it.
Check the Result
After startup, the server should run without repeated restarts, load the configured world, and accept connections. First check the server logs for error messages about password, world name, port, or missing files. Then test joining with a normal player account.
A sensible check consists of four points: the server appears or is directly reachable, the password prompt works, the correct world is loaded, and a second player can join. If you use mods, world modifiers, or crossplay, test these points again after every change.
Operation and Performance
Valheim worlds grow over time. Many large bases, lots of dropped items, and heavily built-up areas can strain the simulation. This is not a specific hosting promise, but a practical characteristic of survival worlds with many persistent objects.
Keep the world tidy, remove drops that are no longer needed, and plan regular restarts outside your main playtime. Backups are especially important before you replace world files, install major updates, or change mods. If your hosting panel offers automatic backups, enable them deliberately and occasionally check whether restore points actually exist.
For players who are more interested in PvP or sandbox experiences, the Rent and Set Up a Rust Server – The Complete Guide is also relevant. For creative and modding communities, the Rent and Set Up a Minecraft Server – Complete Guide 2026 offers additional guidance.
Troubleshooting
Server Does Not Appear in the List
Wait a few minutes after startup and check -public 1. With the Steam backend, the ports must be reachable. With crossplay, you should also test the join code, because the classic list is not always the fastest way to check.
Connection by IP Fails
Check IP, port, and backend. With the default port, 2456 is the game port; according to the Valheim documentation, the server also uses the following port. If you have enabled crossplay, test the join code instead of only the local or direct IP.
Password Is Not Accepted
Set a new password and avoid making it identical to the server name or world name. Then restart the server cleanly and check whether the startup parameter was really applied.
Wrong or Empty World Is Loaded
Compare the value in -world with the existing world file name. A typo can create a new world. Always create a backup before changing world files.
Checks, Limits, and a Safe Rollback
The guide “Rent and Set Up a Valheim Server – Co-op Guide 2026” applies to the server type described in the article and the version status visible at the time of review. Menu names, available versions, mod or plugin compatibility, and required resources may differ after updates. Therefore, do not transfer values unchecked to another game, loader, or server version.
Before changing the world, savegame, configuration, or extensions, create a backup of the affected files. Then change only one related step and test it with the same client and server version you want to play with later.
| Checkpoint | Expected Result | Abort and Rollback |
|---|---|---|
| Server startup | The server reaches the operational state without a new error message. | If startup errors occur, revert the change and restore the latest backup. |
| Connection test | A test account can connect via the address shown in the panel. | If version or connection errors occur, compare version, port, and permissions again. |
| Function test | The specifically changed function works without damaging existing world or game data. | If side effects occur, stop the server and restore backed-up files. |
A successful single test is not a guarantee of performance or availability. World size, mods, plugins, player count, network path, and simultaneous load can change the result. Document the version, change, and test result so you can trace later deviations.
FAQ
How Many Players Fit on a Valheim Server?
Valheim is designed for small co-op groups; planning is often based on up to 10 players. However, world size, building activity, mods, and simultaneous players are decisive. Choose resources based on real usage, not only on the maximum number.
Do I Need Port Forwarding with Rented Hosting?
Normally, you do not need to set up router port forwarding on your home network for a rented game server. The relevant points remain the server ports in the panel, the provider's firewall rules, and the correct details when joining.
Should I Enable Crossplay?
Enable crossplay if players should join from different platforms or if you intentionally want to use the join-code method. If everyone plays via Steam and your setup runs stably, the Steam backend is also a clear option.
What Happens if I Change the World Name?
Valheim loads the world specified in the -world parameter. If this name does not match the existing world file, a new world may be created. Back up the old world before changing names or storage paths.
How Do I Know Whether the Server Is Running Correctly?
The server should start without an error loop, load the desired world, be reachable through the selected connection method, and accept the password. A real join test with a second player is more meaningful than just a green status indicator.