How To Play on Linux

This page is heavily work in progress! If you have additional Informations, feel free to add it or inform the Team about it.

Requirements

Wine
webkit2gtk4.0

Pre-Requisite Installations

Wine

Fedora/RHEL: sudo dnf install wine
Arch Linux: sudo pacman -S wine
Debian/Ubuntu/Pop_OS/Mint: sudo apt install wine

If your distribution has a outdated Wine version Download Wine by going to this link and follow the instructions for your specific Linux distribution to install.

Webkit2gtk4.0

Some distributions do not include this dependency and must install it manually. The patcher will not launch if this dependency is not installed.
Fedora/RHEL: sudo dnf install webkit2gtk3-devel
Arch Linux : sudo pacman -S webkit2gtk webkit2gtk-4.1

Installing MuhRO

If you haven't already, create a master account and confirm your email address.

Once you have a master account, and verified through discord, you can download MuhRO by entering /download (typed, not pasted) in any discord channel.

Download the Full Client using the mirror of your choice.

Extract the zip file to the location you would like to store the game on your computer.

Navigate to the folder you extracted and double click on Muh_Patcher.

You may have to go to files properties and mark it as executable in the permissions tab before it will launch.

The first time that you launch it you will need to click Game Setup on the left hand menu.

Configure your settings in the Game Setup menu. Click Apply, then click OK.

Enter your Master Account Login and select your character account to begin playing.

Creating an Application Desktop/Menu Entry

Create a new text file named MuhRO.desktop in ~/.local/share/applications.

Enter the following into the text file and save it. Make sure to replace PATH TO FOLDER CONTAINING GAME FILES with the path to the folder containing your game files (ideally a location without spaces in the folder). [Desktop Entry] Comment=MuhRO Exec=env WINEDEBUG=-all /PATH/TO/FOLDER/CONTAINING/GAME-FILES/Muh_Patcher Icon=/PATH/TO/FOLDER/CONTAINING/GAME-FILES/muhro.ico Name=MuhRO Path=/PATH/TO/FOLDER/CONTAINING/GAME-FILES/ StartupNotify=true Terminal=false Type=Application

Make the file executable by either opening the files properties and marking it as executable in the permissions tab or run the following in terminal.

chmod +x ~/.local/share/applications/MuhRO.desktop

You may have to log out and back in to see the start menu entry.

Known Problems

Bad performance

Using dxvk can often give significant performance benefits. To use it, follow these steps:

• Start the patcher
• On the left side, click on "Addons"
• Find "Renderer" and set it to "dxvk"
• Done! You can now launch the game

Performance on hybrid graphics

When running hybrid graphics (e.g. onboard graphics + dedicated nvidia GPU), the following environment variables may help when launching the game:

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia ./Muh_Patcher

Running on NixOS

Running the patcher in NixOS requires some additional tinkering in order for the binary to find its needed libraries, and for webkit to obtain networking. Add/adjust the following sections in your /etc/nixos/configuration.nix:

  # provides networking to the webview of the patcher
  environment.sessionVariables.GIO_EXTRA_MODULES = lib.mkForce [
    "${pkgs.glib-networking}/lib/gio/modules"
    "${pkgs.dconf.lib}/lib/gio/modules"
  ];

  # provides shared libraries expected by the patcher-binary
  programs.nix-ld = {
    enable = true;
    libraries = with pkgs; [
      webkitgtk_4_1
      gtk3
      cairo
      gdk-pixbuf
      libsoup_3
      glib
      glib-networking
      0penssl # replace 0 with letter o (blocked by muhro-wiki's cloudflare protection)
      gcc
      glibc
    ];
  }

  environment.systemPackages = with pkgs; [
    # ... other packages
    wineWow64Packages.stable # had issues detecting my gpu with just "wine"
    kdePackages.kdialog
  ];

Additional notes:

• Above example had success using KDE Plasma and niri (niri requires the xwayland-satellite-package though), but the patcher only ran successfully using GDK_BACKEND=x11 ./Muh_Patcher
• Switching from wine to wineWow64Packages.stable required me to wipe my wineprefix before it took effect
• DXVK option in the patcher addons doesn't seem to work for me on nix, but running winetricks dxvk did work, and brings dramatic(!) performance improvements. You can double-check whether or not dxvk works by running the Patcher with DXVK_HUD=full ./Muh_Patcher

Huge thanks to c69manifold, who found the list of required NixOS-packages that make the libraries required for the patcher available (original discord-post)

Patcher only shows a black/gray screen

This is a wayland issue that may surface in some installations. It may be solved by running the patcher with this additional environment-variable: GDK_BACKEND=x11 ./Muh_Patcher

Unacceptable TLS certificate

This issue seems to affect Ubuntu 22.04 and all other distro based on it (KDE Neon)
Solution: so far changing distro

(!Not recommended anymore!) Using Proton

Note: Since client update from 13th August 2026, proton is not necessary anymore to run the client (and might get in the way of using the MuhUI feature of this server).
Regular wine versions (including up-to-date ones) should work just fine.

You can use Proton setting the patcher with an environment variable
Create a file named proton-wrapper.sh inside muhro folder with this content:

#!/bin/bash
PROTON_DIR="$HOME/.steam/steam/steamapps/common/Proton 10.0"
APPID="muhro"
STEAM_COMPAT_DATA_PATH="$HOME/.steam/steam/steamapps/compatdata/$APPID"
STEAM_COMPAT_CLIENT_INSTALL_PATH="$HOME/.steam/steam"
mkdir -p $HOME/.steam/steam/steamapps/compatdata/$APPID

export PROTON_DIR
export APPID
export STEAM_COMPAT_DATA_PATH
export STEAM_COMPAT_CLIENT_INSTALL_PATH
export SteamAppId="$APPID"

"$PROTON_DIR/proton" run "$@"

Open a terminal in muhro folder:

Make the file executable with chmod +x proton-wrapper.sh

Execute the patcher with env RPATCHUR_WINE=/path/to/gamefolder/proton-wrapper.sh ./Muh_Patcher

If you have created a menu-entry (How To Play on Linux#Creating an Application Desktop/Menu Entry), the following entry

Exec=PATH TO FOLDER CONTAINING GAME FILES/Muh_Patcher

should be replaced with

Exec=env RPATCHUR_WINE=/path/to/gamefolder/proton-wrapper.sh path/to/gamefolder/Muh_Patcher

Removing proton-usage

Remove the RPATCHUR_WINE environment variable from your desktop-file, or don't use it anymore when manually launching the patcher.

Optionally, the proton-wrapper.sh may be deleted, but in any case it will not be invoked anymore if the environment variable is removed or renamed.