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There is a new pp system for standard relax coming, which you can check out here. We'd like to know your thoughts before pushing it through. You can express your opinion on this form.


  • My antivirus is blocking the switcher
  • That’s because our switcher edits the hosts file. Turn off your antivirus and run the switcher again.

  • I get “Connection failed” when I try to connect to Ripple
  • Click the “Inspect” button on the server switcher and make sure that all the labels are green (like this). If you still can’t solve this problem, come on our Discord and we’ll help you.

  • I get “Bancho authentication failed” (wrong password) when I try to log in, but my password is correct!
  • First, make sure you’re connected to Ripple (the server switcher should report “You’re playing on Ripple”) and that your password is corrected. If so, type your username and password, then press the login button with your mouse. I know, it’s weird but it often works. (make also sure that caps lock is disabled if your password is lowercase)

  • I can’t download maps from osu!direct.
  • Some maps can’t be downloaded from our beatmap mirror due to technical reasons.

  • I can’t download maps when I’m in multiplayer, but I can download them from the main menu
  • Disable Automatically start osu!direct downloads from the options and try again.

  • How do I play on the normal osu! again?
  • Close osu!, run the switcher and click the Switch to osu! button

  • My switcher is off but when I open in my browser I get an error or I get redirected to Ainu’s website!
  • Make sure the switcher is off, then empty your browser cache and restart your browser. Google it if you don’t know how to do it.

  • I get strange errors on osu!’s website after playing on Ainu (beatmaps not found etc)
  • Delete s and t cookies relative to using a cookie editor. If you don’t know how to remove specific cookies, just delete all cookies from your browser settings.

  • Can I keep playing while the server is restarting because it’s updating?
  • Yes, your scores will be sent as soon as the server gets back online (usually less than a minute). Just make sure to not close the client.

  • Is there a patcher for Ainu?
  • No, you can change server by editing the hosts file with our switcher. Instructions here.

  • Can I have Ainu’s source code?
  • Ainu is mostly open source, you can see it here.

  • Why are osu!direct and other in-game supporter perks free?
  • We think that osu! direct is very cool and it’s a shame people have to pay to have it, that’s why we’re offering it for free on Ainu. If you like what we do, please consider a donation

  • My problem is not listed here
  • Join our discord and ask your question in the #help channel of the server.