[box type=”tick”]osu! is a freeware rhythm game developed by Dean “peppy” Herbert, originally for Microsoft Windows. The game has also been ported to macOS, iOS, Android, and Windows Phone. Its game play is based on commercial titles including Osu! Tatakae! Ouendan, Elite Beat Agents, Taiko no Tatsujin, beatmania IIDX, O2Jam, and DJMax.[/box]