The rhythm game osu! was first released by Dean "peppy" Herbert as a free-to-play game on the PC platform.
The official osu! website was launched to provide downloads, forums, and community features for players.
First major stable release of osu!, bringing many gameplay improvements and establishing core mechanics.
A supporter tag and benefits system was introduced, allowing players to financially support osu! development and access new features.
The first osu! World Cup was held, marking the start of official competitive international tournaments.
osu!direct was added to allow supporters to download beatmaps directly inside the game client.
Development officially began on osu!lazer, the modern open-source client to succeed the classic osu! game.
First public alpha version of osu!lazer was released, allowing players to test the new client and features.
osu!lazer entered beta, bringing improved stability and increased player adoption.
osu!lazer replaced the stable client as the main osu! client, marking a major transition in the game's evolution.
A game designed to improve reflexes and rhythm skills is created by a passionate developer.
The core gameplay mode involving clicking circles in time to music is introduced, forming the basis of osu! gameplay.
A drum-based gameplay mode inspired by traditional Japanese taiko drumming is added, expanding gameplay variety.
A unique mode where players catch falling fruit to the beat of the music is integrated into osu!
A player ranking system is introduced to foster competitive play and skill mastery.
The inaugural worldwide tournament is held to crown the best osu! player globally.
A lore-based story mode is added, presenting a narrative following a rhythm warrior journeying through musical worlds.
Players from all over the world gather virtually to celebrate osu! with challenges, concerts, and collaborative map creations.
A mythic in-game beat appears, granting legendary powers to the player who can master it, becoming a key part of osu! lore.
A group of elite players band together to protect the balance of rhythm and music within osu!
