osu! is a rhythm game based on the gameplay of a variety of popular commercial rhythm games. While aiming to keep authentic gameplay and scoring, osu! increases the epic factor through online rankings, multiplayer, replay exchange, and a huge community following.
Also available is a fully functional built-in editor, allowing intuitive creation of your own beatmaps for the songs you want to play.
In its current state, osu!'s features also include a beatmap storyboard editor, full online multiplayer, and four different game modes inspired by the Ouendan/EBA series, the Taiko no Tatsujin series, an old Beatmania sim minigame, and the Beatmania games themselves.
Whatever your rhythm, it's just a click away.
Feel free to arrange matches via the group's message board and chat room. If you have technical issues, you'd probably be better off looking on the osu! Forums.osu! website[osu.ppy.sh]