osu! (tachyon) for Mac

osu!

A free-to-win rhythm game. Rhythm is just a click away!

This is the future – and final – iteration of the osu! game client which marks the beginning of an open era! Currently known by and released under the release codename "lazer". As in sharper than cutting-edge.

Status

This project is under constant development, but we do our best to keep things in a stable state. Players are encouraged to install from a release alongside their stable osu! client. This project will continue to evolve until we eventually reach the point where most users prefer it over the previous "osu!stable" release.

A few resources are available as starting points to getting involved and understanding the project: Detailed release changelogs are available on the official osu! site. You can learn more about our approach to project management. Track our current efforts towards improving the game.

Running osu!

If you are just looking to give the game a whirl, you can grab the latest release for your platform:

Latest release:

You can also generally download a version for your current device from the osu! site.

If your platform is unsupported or not listed above, there is still a chance you can run the release or manually build it by following the instructions below.

For iOS/iPadOS users: The iOS testflight link fills up very fast (Apple has a hard limit of 10,000 users). We reset it occasionally. Please do not ask about this. Check back regularly for link resets or follow peppy on twitter for announcements. Our goal is to get the game on mobile app stores very soon so we don't have to live with this limitation.

Developing a custom ruleset

osu! is designed to allow user-created gameplay variations, called "rulesets". Building one of these allows a developer to harness the power of the osu! beatmap library, game engine, and general UX for a new style of gameplay. To get started working on a ruleset, we have some templates available here.

You can see some examples of custom rulesets by visiting the custom ruleset directory.

Developing osu!

Prerequisites

Please make sure you have the following prerequisites: A desktop platform with the correct .NET SDK installed.

When working with the codebase, we recommend using an IDE with intelligent code completion and syntax highlighting, such as the latest version of Visual Studio, JetBrains Rider, or Visual Studio Code with the EditorConfig and C# Dev Kit plugin installed.

Downloading the source code

Clone the repository:

To update the source code to the latest commit, run the following command inside the osu directory:

Building

From an IDE

You should load the solution via one of the platform-specific .slnf files, rather than the main .sln. This will reduce dependencies and hide platforms that you don't care about. Valid .slnf files are: osu.Desktop.slnf (most common) osu.Android.slnf osu.iOS.slnf