Osu! is a free-to-play rhythm game developed by Dean Herbert, originally released in September 2007. Inspired by the Nintendo DS game Osu! Tatakae! Ouendan, it challenges players to click, slide, and spin to the beat of music across multiple game modes. The standard mode involves clicking circles timed to music, while other modes include Taiko drum simulation, Catch the Beat fruit catching, and Mania keyboard-style play. The game thrives on its community, with players creating and sharing over a million custom beatmaps covering virtually every music genre imaginable. Its competitive ranked system and global leaderboards drive intense competition among top players. Osu! has attracted over 20 million registered users and remains one of the most active rhythm gaming communities in the world. The game is entirely free with optional supporter subscriptions.
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