MU Mortal UnionMU Online mobile for Android, iPhone and PC

Classic MU Online, on your phone.

Create account

Android · iPhone · iPad · PC · Mac

Create account

Choose your account name and password. With this account you can play from any device.

Install Mu Mortal Union on Android, iPhone or PC

The Mu Mortal Union icon stays on your screen, just like an app.

    Play now in the browser

    What is Mu Mortal Union?

    Mu Mortal Union is a MU Online Season 6 (Episode 3) server that you play on your phone, tablet or computer, straight from the browser. It is free to play and runs on Android, iPhone, iPad, Windows and Mac with the same account.

    There is no APK to download and no Play Store or App Store: the game installs from Chrome or Safari like an app, with its own home-screen icon, and opens in full screen.

    MU on your phone, tablet or PC

    MU Online for Android

    On Android 12 or later, open the page in Chrome and tap “Install the game”: the icon lands on your home screen like any other app. No APK, no Play Store.

    MU Online for iPhone and iPad

    With iOS or iPadOS 26, open the page in Safari, tap “Share” and then “Add to Home Screen”. The game opens in full screen, just like an app.

    MU Online for PC and Mac

    On Windows or Mac you play with keyboard and mouse in Chrome, Edge, Firefox or Safari. From Chrome or Edge you can also install it as a desktop app.

    Play MU Online in your browser

    The game runs in the browser thanks to WebGPU: no client to install and no patches to download. Open the page, log in with your account and play.

    Classic MU Online, everywhere

    • MU Online Season 6 Episode 3: the classic maps, classes and items.
    • Events such as Blood Castle, Devil Square, Chaos Castle and Castle Siege.
    • One account for phone and PC: everyone plays on the same server.
    • Touch controls on mobile; keyboard and mouse on computers.
    • Free to play, with no app store downloads.

    Frequently asked questions

    Is Mu Mortal Union free?

    Yes. Creating an account, installing the game and playing are all free, on mobile and on PC.

    Can I play MU Online on my phone?

    Yes. Mu Mortal Union runs on Android phones (Android 12 or later with Chrome 137 or newer) and on iPhone and iPad with iOS 26 or later in Safari, with touch controls.

    How do I install MU on Android?

    Open mu.mortalunion.com/en/ in Chrome, tap “Install the game” and accept the installation. The Mu Mortal Union icon appears on your home screen; no APK needed.

    How do I install MU on iPhone?

    Open mu.mortalunion.com/en/ in Safari (iOS 26 or later), tap “Share”, choose “Add to Home Screen” and leave “Open as Web App” turned on. Then open the game from the new icon.

    Can I play on PC or Mac?

    Yes. On Windows use Chrome or Edge 137 or later, or Firefox 147 or later; on Mac, Safari 26, Chrome or Edge. You play with keyboard and mouse, with the same account as on your phone.

    Which version of MU Online is it?

    It is MU Online Season 6 Episode 3, the classic version, adapted to play in the browser and on mobile.

    Why doesn’t it open inside Facebook, Instagram or TikTok?

    The browsers built into those apps cannot run the game. Open the page in Chrome (Android) or Safari (iPhone) to install it. You can still create your account from any browser.

    Can I use the same account on my phone and PC?

    Yes. Your account and characters are the same on Android, iPhone, iPad and PC, because everyone connects to the same server.