MU Online for low-end PCs and old laptops, in the browser

Yes, Idle MU runs on low-end PCs and old laptops. It is the original MU Online Season 6, opened in a Chrome, Edge or Firefox tab with nothing to install, and the game adapts on its own to your graphics card and screen size.

What helps on a simple PC

	How it works
Install	None. The game opens in the browser
First launch	About 80 MB, kept by the browser; after that it opens in seconds
Older graphics card	The game picks the graphics mode your card can handle, on its own
Small screen	The game window fits your screen, down to 800x600
Farming	Idle keeps hunting with the tab minimized
System	Windows, Mac or Linux

If "Optimize the game" shows up

This notice shows up next to the game when the browser is drawing without the graphics card. Follow the steps in First steps, one at a time, until it goes away.

Let the farm do the work

On a simple machine, the best way to level up is to let your character hunt on its own. Take it to a hunting spot for your level, press Z, turn on Idle and minimize the tab. The farm keeps going as long as the tab exists.

How to start

Create your account. Just a username and password.
Open the game in an up-to-date Chrome, Edge or Firefox.
Pick the channel, create your character and play.

Frequently asked questions

Does it run on an old laptop?

Yes. The game opens in the browser and picks the graphics mode your card can handle, with nothing to configure.

Do I need a dedicated graphics card?

No. The game uses whatever graphics card the computer has. If Optimize the game shows up, follow the steps in First steps.

Does it take up space on my computer?

About 80 MB, kept by the browser on the first launch. No program is installed.

Can I play on my phone?

No. The game needs a computer with a mouse and keyboard.

Is this the official MU Online?

No. Idle MU is an independent server, with no ties to Webzen, the owner of the MU Online brand.