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Downloads
Client Downloads
Client files (v2.1)
Client that supports 3D camera and windows mode.
133.6 MBDownload
If you have trouble with our Client, you can use this old client to play the game (note that some monsters might not be visible.)
Tool Downloads
Mu Window Mode (Option 2)
Tool to play in window mode if the one in the client does not work
1.4 MBDownload
Mu Window Mode (Option 3)
Tool to play in window mode if the one in the client does not work
0.1 MBDownload
How to install the Client
Download the Client and extract the files anywhere in your PC. Then simply double click on "Mu Launcher.exe", choose Old School MuOnline from the dropdown and click "Start Game".

You might need to unblock the Main.exe file or folders from your Antivirus.

If a message from Windows opens up saying that "Windows protected your pc", select "Run anyway".


Can I play on my MacBook?
MuOnline is not available for macOS, however, you can have a Windows running in your MacBook by following the steps in the next Apple Official Guidelines:

Install Windows 10 on your Mac with Boot Camp Assistant

Alternatively you can use a Free virtual machine like VMware. See how to do it here.

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Server Info

Version97d-99i
Experience500x (VIP 1000x)
Drop50%
Total Accounts1,210
Total Characters1,380
Total Guilds35

Top Resets+

CharacterClassResets
MagoBlackSoul Master292
MgbackanMagic Gladiator278
X_shadow_XSoul Master156
JasonAsanoSoul Master115
BeWithYouSoul Master89

Events

Blood Castle
Devil Square
Golden Invasion
Sky Event
Happy Hour
Party Bonus
Lucky Jewels
Lucky Mixes