The MU ProjectFAQ
Is it free?
Yes. Download and play for free.
Is this the official MU Online?
No. It is an unofficial fan project inspired by MU Online, not related to Webzen.
Where do I create the account?
Inside the game, in the Register tab of the login screen.
Can I have several characters?
Yes, several per account, and they share the vault.
I forgot my password.
Write to the team on Discord from the email account you registered with. Nobody from the team will ask for your password.
Does it run on Mac, Linux or mobile?
For now only on Windows 10 and 11, 64-bit. Linux, later on.
Windows says it protected my PC.
The program is not code-signed yet. Click More info and then Run anyway.
Do I have to download updates?
No: the launcher updates itself every time you open it.
The game runs slowly.
In Options (O) → Graphics pick the Mobile preset, lower the resolution or turn off shadows, reflections and bloom.
Can I use the MU Helper?
Yes, the built-in one (Z key). External programs are forbidden.
Can I sell items for real money?
No. It is against the rules and is sanctioned.
Where do I report a bug?
On Discord. Exploiting it instead of reporting it is against the rules.