2007 video game

osu! is a rhythm game made by Dean "Peppy" Herbert in 2007. It has gotten good reviews and has been recommended by professional gamers as a way of improving cursor aim and gaining advantage in other games.[1][2] A repository of the game, mostly written in C#, can be found in GitHub.[3]

Screenshot of osu! gameplay.

Most of the levels (beatmaps) are made by the community, which are made with the game's level creator.

osu! has 4 game modes, osu!standard, osu!taiko, osu!catch and osu!mania. osu!standard, as its name suggests, is the most popular one.

osu! started as a PC emulation of the DS game Osu! Tatakae! Ouendan. Peppy made it during an all-nighter, and released the first version on July 1st, 2007 to a few of his friends. After receiving positive feedback, he worked more on the project, adding additional features to the game. Some features, namely a custom level creator and leaderboards, were not included in the original game, which further increased the appeal of the game. After the creation of a website osu.ppy.sh, multiplayer, and increased custom level quality and quantity, what was initially a small project eventually eclipsed the game it emulated. As of 2024, osu! has tens of millions of accounts considered active, and over 17 billion total plays.


  1. Carpenter, Nicole (2019-07-16). "Gamers with godlike reflexes are racing to break world records in this rhythm game". PC Gamer. Retrieved 2021-04-26.
  2. Webb, Kevin. "Professional gamers like Ninja use this music game to practice their aim and improve their mouse skills — here's how you can play for free". Business Insider. Retrieved 2021-04-26.
  3. ppy/osu, ppy, 2021-04-26, retrieved 2021-04-26