Repositories list

• osu-wiki

  Public
  home of the osu! wiki

  wikiosuhacktoberfest

  wikiosuhacktoberfest

  Markdown

  •

  Other

  •1.2k1.2k forks•579579 stars•7676 issues•4646 pull requests•Updated Jul 19, 2026Jul 19, 2026

• osu

  Public
  rhythm is just a *click* away!

  gamecatchrhythm+ 4

  gamecatchrhythmosubeatmaptaikomania

  C#

  •

  MIT License

  •2.8k2.8k forks•19k19k stars•1.5k1.5k issues•381381 pull requests•Updated Jul 17, 2026Jul 17, 2026

• osu-web

  Public
  the browser-facing portion of osu!

  laravelwebfrontend+ 3

  laravelwebfrontendbackendosuhacktoberfest

  PHP

  •

  GNU Affero General Public License v3.0

  •424424 forks•1.1k1.1k stars•767767 issues•5252 pull requests•Updated Jul 17, 2026Jul 17, 2026

• osu-server-spectator

  Public
  osu! spectator server

  C#

  •

  MIT License

  •2929 forks•8383 stars•1717 issues•77 pull requests•Updated Jul 16, 2026Jul 16, 2026

• osu-framework

  Public
  A game framework written with osu! in mind.

  game-engineosuhacktoberfest+ 1

  game-engineosuhacktoberfestgame-frameworks

  C#

  •

  MIT License

  •488488 forks•2k2k stars•332332 issues•138138 pull requests•Updated Jul 15, 2026Jul 15, 2026

• osu-onlinedb-generator

  Public
  A lightweight program to generate the online.db beatmaps cache file for the osu! game client.

  C#

  •

  MIT License

  •55 forks•1313 stars•00 issues•00 pull requests•Updated Jul 15, 2026Jul 15, 2026

• osu-queue-score-statistics

  Public
  A queue processor to handle updating general statistics updates from user scores

  C#

  •

  MIT License

  •1515 forks•2323 stars•66 issues•55 pull requests•Updated Jul 14, 2026Jul 14, 2026

• osu-stream

  Public
  tap, slide, hold and spin to a beat you can feel!

  C#

  •

  MIT License

  •4343 forks•173173 stars•88 issues•55 pull requests•Updated Jul 14, 2026Jul 14, 2026

• osu-resources

  Public
  assets used by osu!

  resourcessamplesosu+ 1

  resourcessamplesosutextures

  C#

  •

  Other

  •119119 forks•270270 stars•00 issues•77 pull requests•Updated Jul 10, 2026Jul 10, 2026

• osu-queue-processor

  Public
  C#

  •

  MIT License

  •88 forks•1515 stars•22 issues•11 pull request•Updated Jul 9, 2026Jul 9, 2026

• osu-difficulty-calculator

  Public
  Processes raw beatmaps and saves difficulty attributes to a database backend

  osubeatmap

  osubeatmap

  C#

  •

  MIT License

  •1818 forks•7979 stars•22 issues•11 pull request•Updated Jul 9, 2026Jul 9, 2026

• osu-tools

  Public
  command line tools to get stuff done

  C#

  •

  MIT License

  •9595 forks•134134 stars•11 issue•88 pull requests•Updated Jul 5, 2026Jul 5, 2026

• Satori

  Public
  Experimenting with dotnet runtime.

  C#

  •

  MIT License

  •2222 forks•5050 stars•00 issues•00 pull requests•Updated Jun 29, 2026Jun 29, 2026

• SDL3-CS

  Public
  C# bindings for SDL3 (https://github.com/libsdl-org/SDL)

  C#

  •

  MIT License

  •3030 forks•179179 stars•55 issues•11 pull request•Updated Jun 29, 2026Jun 29, 2026

• veldrid-spirv

  Public
  SPIR-V shader translation for Veldrid, using SPIRV-Cross

  C#

  •5050 forks•99 stars•00 issues•22 pull requests•Updated Jun 18, 2026Jun 18, 2026

• osu-server-beatmap-submission

  Public
  C#

  •44 forks•2020 stars•33 issues•00 pull requests•Updated Jun 17, 2026Jun 17, 2026

• osu-localisation-analyser

  Public
  .NET analyser for localisation in osu!

  C#

  •

  MIT License

  •88 forks•1010 stars•55 issues•00 pull requests•Updated Jun 11, 2026Jun 11, 2026

• osu-deploy

  Public
  Deploy script for lazer

  osulazer

  osulazer

  C#

  •

  MIT License

  •3535 forks•5656 stars•11 issue•11 pull request•Updated Jun 8, 2026Jun 8, 2026

• helm-charts

  Public
  Kubernetes helm charts

  Go Template

  •33 forks•1515 stars•11 issue•00 pull requests•Updated Apr 17, 2026Apr 17, 2026

• veldrid

  Public
  A low-level, portable graphics library for .NET.

  C#

  •

  MIT License

  •306306 forks•4444 stars•55 issues•00 pull requests•Updated Mar 22, 2026Mar 22, 2026

• osu-beatmap-difficulty-lookup-cache

  Public
  C#

  •88 forks•88 stars•00 issues•11 pull request•Updated Mar 19, 2026Mar 19, 2026

• managed-midi

  Public
  Cross-platform MIDI processing library for mono and .NET (ALSA, CoreMIDI, Android, WinMM and UWP).

  C#

  •

  MIT License

  •3838 forks•11 star•00 issues•00 pull requests•Updated Mar 3, 2026Mar 3, 2026

• osu-global-rank-lookup-cache

  Public
  Caching layer for the most expensive of database operations

  C#

  •

  MIT License

  •55 forks•1313 stars•00 issues•00 pull requests•Updated Dec 11, 2025Dec 11, 2025

• scthumber

  Public
  Some image thumbnailing daemon thing

  JavaScript

  •55 forks•55 stars•00 issues•00 pull requests•Updated Oct 20, 2025Oct 20, 2025

• osu-server-replay-store

  Public
  C#

  •11 fork•44 stars•22 issues•11 pull request•Updated Aug 29, 2025Aug 29, 2025

• osu-elastic-indexer

  Public
  MySQL -> Elasticsearch score pump

  C#

  •

  MIT License

  •77 forks•1111 stars•22 issues•11 pull request•Updated Apr 16, 2025Apr 16, 2025

• osu-notification-server

  Public
  TypeScript

  •

  GNU Affero General Public License v3.0

  •77 forks•1919 stars•11 issue•00 pull requests•Updated Apr 7, 2025Apr 7, 2025

• SDL2-CS

  Public
  SDL2# - C# Wrapper for SDL2

  C#

  •

  Other

  •252252 forks•4747 stars•22 issues•00 pull requests•Updated Feb 12, 2025Feb 12, 2025

• s3-nginx-proxy

  Public
  A lightweight kubernetes deployable nginx-based caching reverse proxy

  JavaScript

  •

  MIT License

  •55 forks•3131 stars•22 issues•00 pull requests•Updated Dec 27, 2024Dec 27, 2024

• osu-design

  Public
  Work-in-progress design discussions

  00 forks•1919 stars•00 issues•00 pull requests•Updated Oct 23, 2024Oct 23, 2024