For Windows 10 & 11

Kuroosu Launcher

Press PLAY and your osu! starts right on Kuroosu – no shortcuts, no -devserver. Your profile, rankings, news and your Discord status, all in one app.

Downloadfor Windows Connect without the launcher

Free · installs in seconds, no admin rights needed · updates itself

One-click playFinds your osu! and starts it connected to Kuroosu. No osu! yet? The launcher downloads the official installer for you.
osu!stable or lazerSwitch PLAY between your normal osu! and our own Kuroosu lazer client – no lazer delay anymore, no notelock, same account and leaderboards.
Your profileYour rank, pp, accuracy and best plays right on the home screen.
Rankings & newsThe top players of every mode and what's new on Kuroosu.
Discord statusShows "Playing on Kuroosu" and the map you are playing on your Discord profile.
Always up to dateNew versions install themselves in the background.

"Windows protected your PC"?

Windows shows this for new programs from small projects like ours (we don't pay for a code-signing certificate yet). It's safe to continue:

  1. 1Click More info
  2. 2Click Run anyway
  3. 3The launcher installs and opens – log in and press PLAY

Questions

Does it change osu!?

No. It starts your normal osu! with -devserver kuroosu.online, the official way to play on another server. Nothing in osu! is patched or changed, and you can still play on other servers.

Do I need a new account?

Use your Kuroosu account – the same one for the website and in osu!. Create one here if you don't have it yet.

How do I close it completely?

Right-click the Kuroosu icon in the tray (next to the clock) and choose Quit. In the launcher settings you can also make the close button quit it.

How do I remove it?

Windows Settings → Apps → Kuroosu Launcher → Uninstall. Your osu! stays as it is.