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Client Issues

Client doesn't start - no error

Make sure to run Game Setup once to set your graphics settings.

Also you may be missing Visual C++ redistributables on your pc. Use the following open source link to install them:

Blank Error when starting the client

You tried to start the Muh.exe directly. You have to always start the patcher to log in (Muh_Patcher.exe)

cannot init D3D or GRF file has problem.

Try to adjust your graphics settings like resolution.

Rejected from Server.(3)

Make sure you are using your Game Accoun (not email).

This error can occur when your password is longer than 24 characters and / or has some special characters.

Patcher Issues

Help, I'm on Linux

How To Play on Linux
You have to setup wine and use this patcher: Muh Patcher Linux

Patcher doesn't start - incompatible software error

If you have a 32bit Operating System the Patcher will not run.
You can download a 32bit-Version of the Patcher and put it into your game folder: Muh Patcher 32bit

Patcher doesn't start / no error message

If you have your Muh Patcher pinned on the Windows Task Bar it doesn't show the popup when there's a Patcher Update available.
You could simply try to hit enter. If that doesn't work proceed here:
Note: it starts and hangs as a process which has to be killed via Task Manager
After that start it once through a classic link (e.g. on your desktop) or directly from game folder and proceed with the update.

Patcher Update doesn't work / update prompt repeats itself / error message after prompt

Check if you're having a hanging Muh_Patcher.exe process. Kill it via Task Manager.
Make sure to start the Muh_Patcher.exe from your game folder or a link that is not pinned to your windows task bar.
If everything fails use the following links for a manual Patcher update: 64bit Version (default version): Muh Patcher
64bit Version (no self-update): Muh Patcher
32bit Version: Muh Patcher
32bit Version (no self-update): Muh Patcher
Linux Version (default version): Muh Patcher

Save this file into your game folder.

Patcher fails to load page

If you have an older Windows OS like Windows 7 or Windows 8.1 you might be missing Internet Explorer 11 which have to be installed:

Windows 7

Windows 8.1

Patching fails with an error

If the Patcher fails while patching you should see an error message in the bottom bar.

connection closed before message end

You propably reset all patches, this may glitch in same cases - if simply retrying doesn't work you should redownload the client from our homepage.

failed to get the update lock

Your MuhRO-Game-Folder propably has symbols or spaces (e.g. Program Files x86). Try to install MuhRO into a simpler patch like C:\Games