Popular games built on game engine osu!framework

osu! is an open source rhythm game originally created by Australian developer Dean Herbert in 2007. Its gameplay is based on the Osu! Tatakae! Ouendan series and primarily involves clicking circles that appear on screen in time with music using a cursor or finger. The game features four rulesets: osu!standard (click circles, sliders, and spinners), osu!taiko (drum-based notes inspired by Taiko no Tatsujin), osu!catch (catching falling fruit), and osu!mania (vertically scrolling key-based notes). Levels, called beatmaps, are created and uploaded by the community, providing a large and constantly expanding library. Players can compete on global leaderboards ranked by performance points or join real-time multiplayer rooms. The game can be played in various ways such as with mouse, keyboard, graphics tablet or touch screen.

Syne is an independent rhythm game created and solo-developed by ZXZ. First developed in 2026, it is built around a 3D playfield that tilts and shifts with the music, combining precise timing with spatial movement. Players interact with notes as they travel toward a catch line, creating a gameplay experience focused on both rhythm and aim. The game features four distinct gamemodes, each offering its own approach to playing along with music. Players can compete through ranked play and leaderboards, create and share their own beatmaps, and participate in real-time multiplayer. Syne is currently available in closed beta for Windows, macOS, and Linux.

A free, community-driven, and open-source vertical scrolling rhythm game.

osu!lazer is the open-source, next-generation client overhaul of the free-to-play rhythm game osu!, rewritten from scratch by Dean Herbert (ppy) and community contributors using the custom osu-framework. While retaining the core circle-clicking, taiko, catch, and mania gameplay rulesets of the 2007 original, osu!lazer introduces updated game mechanics, including slider end accuracy scoring, real-time score processing, cross-platform mobile parity, and a highly customizable user interface and HUD layout. Built to eventually replace the legacy stable client, osu!lazer features a built-in skin editor, an overhauled multiplayer architecture with custom room settings, extensive gameplay modifier customization, and native support across Windows, macOS, Linux, Android, and iOS. Player progression, beatmap downloads, and global leaderboards are integrated directly with the main osu! infrastructure.