

To get started working on a ruleset, we have some templates available here. Building one of these allows a developer to harness the power of osu! for their own game style. Osu! is designed to have extensible modular gameplay modes, called "rulesets". If your platform is not listed above, there is still a chance you can manually build it by following the instructions below. Check back regularly for link resets or follow peppy on twitter for announcements of link resets. We reset it occasionally when this happens.

Failing that, you may use the links below to download the latest version for your operating system of choice: You can also generally download a version for your current device from the osu! site. If you are looking to install or test osu! without setting up a development environment, you can consume our releases.

Game balance and final quality-of-life passes come at the end of development, preceded by experimentation and changes which may potentially reduce playability or usability. IMPORTANT: Gameplay mechanics (and other features which you may have come to know and love) are in a constant state of flux. It will continue to evolve to the point of eventually replacing the existing stable client as an update. Users are encouraged to try it out and keep it installed alongside the stable osu! client.

This project is under constant development, but we aim to keep things in a stable state. The future of osu! and the beginning of an open era! Currently known by and released under the release codename " lazer".
