How to Change the World Modifiers on Your Valheim Server

World modifiers let you adjust the difficulty of your world, for example the strength of enemies, the penalty on death, the amount of resources, the frequency of raids or the rules for portals. The modifiers are stored in the world itself. You can change them directly in-game via the console, or prepare a world locally with the modifiers you want and upload it to your server.

Note

Create a backup before making changes so you can always return to the previous state.

Change modifiers in-game via the console

This way you change the modifiers of your existing world while the server is running. The change takes effect immediately and is stored permanently with the next world save.

1. Become an admin
   Add yourself as an admin on your server, see Add Admin. Only admins are allowed to run these commands on the server.

2. Enable the console
   Enable the developer console in the game settings if it is not active yet.

3. Join the server
   Connect to your server, see Join Server.

4. Enter a command
   Open the console with F5, enter one of the following commands and confirm with Enter. Upper and lower case do not matter.

Set a preset

setworldpreset <preset>

The available presets are Normal, Casual, Easy, Hard, Hardcore, Immersive and Hammer. Example:

setworldpreset Hard

A preset replaces all previously set world modifiers.

Change a single modifier

setworldmodifier <modifier> <value>

Modifier	Meaning	Possible values
Combat	Combat difficulty	VeryEasy, Easy, Hard, VeryHard
DeathPenalty	Penalty on death	Casual, VeryEasy, Easy, Hard, Hardcore
Resources	Amount of resources	MuchLess, Less, More, MuchMore, Most
Raids	Frequency of raids	None, MuchLess, Less, More, MuchMore
Portals	Rules for portals	Casual, Hard, VeryHard

Example:

setworldmodifier Combat Hard

Reset all modifiers

resetworldkeys

Resets all world modifiers to their defaults.

Warning

setworldpreset and resetworldkeys reset all world modifiers, including switches such as no map or no build cost that are active in your world. Your boss progress is kept.

Tip

You cannot reset a single modifier to its normal value with setworldmodifier, because Normal is not a valid value. In this case, reset all modifiers with resetworldkeys and then set the modifiers you want again. Switches such as no map can then be turned back on in the world modifiers menu, see Prepare and upload a world with modifiers.

Note

The commands are run on the server, so you do not get a confirmation in-game. Feedback from the server appears in the console in the dashboard, for invalid input for example Invalid preset or Invalid input, possible valid values are: .... If you are not registered as an admin, the game reports You are not admin.

Prepare and upload a world with modifiers

This way you set the modifiers in the game's world modifiers menu. It also offers switches such as no map or no build cost, which you cannot set individually with setworldpreset and setworldmodifier. The modifiers are stored in the world and applied by your server when it loads the world.

1. Create the world locally
   Start Valheim, choose your character and create a new world on the world selection screen, for example named MyWorld.

2. Set the world modifiers
   Select the world on the world selection screen and open the world modifiers menu. Choose a preset or adjust the individual modifiers and switches, then confirm your selection.

3. Enter the world once
   Start the world locally once and leave it again so that all world files are created.

4. Upload the world
   Upload the world to your server and enter its name in the World Name field, as described in Add Savegame.

5. Start the server
   Start your server. It loads the world with the selected modifiers.

Tip

You can change the modifiers of your existing server world the same way: Download the world folder to your PC with Download Savegame, copy it into the local directory %userprofile%\AppData\LocalLow\IronGate\Valheim\worlds_local, adjust the modifiers on the world selection screen and then upload the world again.

Warning

After downloading, do not start your server again until you have uploaded the changed world. Otherwise everything that happens on the server in the meantime is lost. If your local worlds_local directory already contains a world with the same name, move it somewhere else first so that you do not overwrite it.