No installer · No heavy client

MU Online with no download

On OpenMU you play MU Online Season 6 straight in your browser: no client to download, no patches to install and nothing to configure. Create an account and jump in.

🔒 Sign in to play Create free account

The problem with traditional MU

✕Downloading a large client, often from a questionable source.
✕Installing patches and updating every time the server changes.
✕Programs that only run on Windows and break on Mac, Linux and phones.
✕Antivirus complaining about launchers and modified executables.

How OpenMU solves it

The client runs in the browser (WebGL 2). The game files are loaded by the site itself and cached the first time; after that the game opens much faster. Everything updates by itself, with nothing for you to download.

Step by step

1
Create your account
Free sign-up in about 1 minute with a login, password and email. Every new account gets 5 days of VIP.
2
Click Play now
The game opens in a browser tab. The first time it loads the files and keeps them in the cache.
3
Create your character
Pick a class, enter the OpenMU world and start in Lorencia.

Requirements

✓A current browser: Chrome, Edge, Firefox or Safari
✓WebGL 2 enabled (already on for most devices)
✓A stable internet connection
✓Works on Windows, Mac, Linux, iPhone and Android

Tips

•Install the game as an app (desktop shortcut or home screen icon) to open it full screen.
•If the game feels slow, check that hardware acceleration is turned on in your browser.
•The first launch takes longer; after that the cache makes it much faster.
•On a phone, use landscape mode and the on-screen joystick.
•The site sign-up and login pages are in Portuguese: you only need a login, password and email. The game client has more than 10 languages.

Frequently asked questions

Do I need to download anything to play OpenMU?

No. There is no installer or client to download: the game runs in the browser. The first launch loads the files and stores them in the browser cache.

Can I play MU Online with no download on my phone?

Yes. The client has touch controls (joystick, attack and skills) and works on iPhone and Android straight from the browser.

Is it the full Season 6?

Yes. There are 7 classes, maps, events (Blood Castle, Devil Square, Chaos Castle and invasions), reset and ranking, with 20x EXP.

Is it free?

Yes. Creating an account and playing is free. VIP plans are optional.

Ready to go back to Lorencia?

OpenMU: MU Online Season 6, 20x EXP, reset and events. Free account, play in your browser.

Create free account

Server guides (in Portuguese): OpenMU guides.

Also available in: Português · Español