Modding Help

Learn how to start modding in Valheim!

Publicizing Assemblies

You can download CabbageCrow's Assembly Publicizer Here
Navigate to C:\Program Files (x86)\Steam\steamapps\common\Valheim\valheim_Data\Managed
and drag assembly_valheim.dll file over the AssemblyPublicizer.exe
and you will notice the console popup, check to make sure no errors display and close console.
Afterwards, in your Managed folder where you dragged the assembly_valheim.dll file, you'll notice a new folder
publicized_assemblies with the new assembly_valheim.dll you'll need to reference in your mods project.
You can publicize the guiutils and a few others if needed in the future.

Visual Studio

Create a folder in your Project folder called Libs
Now you need to add the new assembly_valheim.dll file to Libs folder.
along with a few other files. Let's look at the file list below:

Navigate to C:\Program Files (x86)\Steam\steamapps\common\Valheim\BepInEx\core

You'll need to move these files below to your Libs folder.

BepInEx.dll
0Harmony.dll

Navigate to C:\Program Files (x86)\Steam\steamapps\common\Valheim\valheim_Data\Managed

Copy the files below into your Libs folder.

UnityEngine.dll
UnityEngine.CoreModule.dll
UnityEngine.InputLegacyModule.dll
UnityEngine.UI.dll

Referencing

Now that you have all the DLLs into your projects Libs folder
Now go to Visual Studio => Project => Add Reference
Make sure to highlight all of the DLLs and click Ok!

Allowing unsafe code

Since we've technically "hacked" the original assembly_valheim.dll and made all
Private methods and variables public, we need to instruct Visual Studio to allow our code to execute.
Click Project => Project Properties => Build
Now you'll see Allow unsafe code you need to check this option and save.