1F31A-BepInEx_Valheim_Full icon

BepInEx Valheim Full

BepInEx pack for Valheim.

Last updated 7 months ago
Total downloads 12178
Total rating 4 
Dependency string 1F31A-BepInEx_Valheim_Full-1.0.5
Dependants 4 other mods depend on this mod


BepInEx for Valheim, Full Pack

This pack is for Valheim modding. It includes

  • the unstripped Unity libraries,
  • Mono libraries for .NET 4.5,
  • Mono libraries from Unity for .NET 4.5,
  • the System.Buffers library,
  • Windows and Unix versions of BepInEx and UnityDoorstop,
  • a BepInEx config with the console enabled by default,
  • and a bash script to start the server on Linux via cli.

It runs both on clients and servers.

Table of Contents



First time using BepInEx

The package's zip is structured as follows:


Extract the files manually to your Valheim installation so you get the following structure:


If you're on Windows, just run the game via Steam.

For Linux users,

  • use start_game_bepinex.sh to start your game client
  • use start_server_bepinex.sh to start your game server

I've already got a working BepInEx setup

Just install this plugin to your current BepInEx plugins and it'll auto-install + -update BepInEx Valheim Full for you: https://valheim.thunderstore.io/package/1F31A/BepInEx_Valheim_Full_Updater/

Building the pack yourself


  • Before you start, create an empty folder to put everything in. Start clean and don't mix.
  • We use C:\ with the standard Unity install directory as an example. Replace it with your own paths.



  1. From C:\Program Files\Mono\lib\mono\4.5
    • Copy all DLLs
  2. Copy the whole folder C:\Program Files\Mono\lib\mono\4.5\Facades (not just the DLLs inside, the folder Facades)
    • Keep the DLLs in that subfolder
  3. From C:\Program Files\Unity\Hub\Editor\2019.4.20f1\Editor\Data\MonoBleedingEdge\lib\mono\4.5
    • Copy all DLLs (overwrite when prompted)
  4. Copy the whole folder C:\Program Files\Unity\Hub\Editor\2019.4.20f1\Editor\Data\MonoBleedingEdge\lib\mono\4.5\Facades (not just the DLLs inside, the folder Facades)
    • Keep the DLLs in that folder, overwrite when prompted
  5. From C:\Program Files\Unity\Hub\Editor\2019.4.20f1\Editor\Data\Managed\UnityEngine
    • Copy all DLLs (overwrite when prompted)
  6. From C:\Program Files\Unity\Hub\Editor\2019.4.20f1\Editor\Data\PlaybackEngines\windowsstandalonesupport\Variations\mono\Managed
    • Copy all DLLs (overwrite when prompted)
  7. Get a copy of System.Buffers (target .NET 4.5) and add the DLL: https://www.nuget.org/packages/System.Buffers/


  • Copy our doorstop_config.ini
  • Copy our custom start_server_bepinex.sh or start_game_bepinex.sh bash scripts for Linux servers
  • Put the pack into your Valheim client or server, run it once to generate the config/ directory with default BepInEx/config/BepInEx.cfg. Then set Enabled = true in the category [Logging.Console] of BepInEx/config/BepInEx.cfg to enable the console, and copy the config folder to your pack
  • Run the checksums (bash command): find . -type f -exec sha256sum {} \;


Are you open to pull requests?


Will this package be maintained?

Yes. Both the GitHub and the packages on the mod websites are maintained by a team. If any one person becomes unavailable, the others can continue to maintain it. Should the whole team want to stop, we're open to considering new volunteers.

Can I submit some-random-name.dll to the pack?

This pack is only meant for .NET/Mono/Unity DLLs. If it's part of that, sure. Make sure to include where you got it from and why you need it.

I'm getting a weird audio-related error when I start Valheim.

Try removing UnityEngine.AudioModule.dll from your DLLs.

How do I configure my server on Linux with the bash script?

Open the bash script in your favorite text editor, look at the very top.

What's my Linux server's password if I use the bash script?

If you didn't configure the bash script to set your own password, it'll autogenerate a random password and show it in your terminal on startup.


When you try to run the Linux server via the bash script, you may encounter a similar error:

ERROR: Running as root exposes your machine to malware and is unnecessary in a large majority of cases.

For environments that require running the bash script as root, you can start it with:

./start_server_bepinex.sh UNSAFE_ROOT_EXECUTION

or with the environment variable

UNSAFE_ROOT_EXECUTION=true ./start_server_bepinex.sh

There are DLLs that aren't really necessary in the pack

We're aware. If you've got a good reason to delete them (e.g. some are already loaded by the game or by BepInEx) and you want to improve the pack, submit a pull request with the change.

There's a .NET/mono/Unity DLL missing from the pack

Submit a pull request with the details and we'll get it added.

Can I run this on Linux with Proton?

Yes. Follow the guide here: https://bepinex.github.io/bepinex_docs/master/articles/advanced/steam_interop.html#protonwine

SHA-256 File Checkums

Checksums are in the file checksums.sha256.

Checksums are sorted alphabetically so they can easily be compared even in simple text editors.



  • Thunderstore needs a version bump for new releases


  • Revert to prefer windowsstandalonesupport variation DLLs, otherwise it breaks


  • Moved BepInEx/core_lib to unstripped_corlib/ to avoid a bug caused by using UnityDoorstop with r2modman
  • Added .version file as additional version comparison with Thunderstore API pre-checksum - this does not replace the more detailed checks
  • Updated start_server_bepinex.sh to support spaces in world names
  • Reordered DLL copy instructions so the Unity core DLLs are kept over the windowsstandalonesupport variation DLLs

Available versions

Please note that the install buttons only work if you have compatible client software installed, such as the Thunderstore Mod Manager. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2021-3-18 1.0.5 7002 Version 1.0.5 Install
2021-3-18 1.0.4 79 Version 1.0.4 Install
2021-3-18 1.0.3 79 Version 1.0.3 Install
2021-3-1 1.0.2 4876 Version 1.0.2 Install
2021-3-1 1.0.1 71 Version 1.0.1 Install
2021-3-1 1.0.0 71 Version 1.0.0 Install