opsu!

opsu! is an open-source rhythm game for Osu!, compatible with Windows, OS X, Linux, and Android. It uses Osu! beatmaps for gameplay, which can be downloaded directly or manually. Beatmaps are stored in the Import/ folder. On first launch, opsu! scans beatmaps and prompts downloads if none are found. Customize settings like music sync and skins via the options menu. Supports replays, screenshots, and more.