You can already play an offline version, but you have to use something that kinda works like a launcher. It's what I use and I can play all I want.
Download it here:
http://www.mediafire.com/?2jjjx4xdvd1
Just run it before you run audiosurf, it'll work.
Can't run it? Make sure you have the .NET framework. Don't know what that is? You definitely need it. Download it from here:
http://www.microsoft.com/downloads/d...displaylang=en
Running but not working? Make sure these lines are in your hosts file:
127.0.0.1 204.13.11.27
127.0.0.1 audio-surf.com
127.0.0.1
www.audio-surf.com
Your hosts file is located in C:\windows\system32\drivers\etc\hosts. Open it with notepad.
Check the updater.ini file in your Audiosurf folder. Make sure the app version is either 1 or 2. If it's 3, set it to 2 and delete patchfile.zip from the Audiosurf folder.
Don't try to create a username. Just enter anything in the username and password boxes to log in.
If you still cant make it run in offline mode, reinstall the whole client(V.1.11.08) and follow the steps in this qoute.