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Publisher · Open source

ppy

ppy Pty Ltd, founded by Dean Herbert, develops the rhythm game osu!, which is free to play and funded by optional osu!supporter contributions. The current game client (codename "lazer") is open source under the MIT licence, while game resources use a separate non-commercial Creative Commons licence.

Licensing at a Glance

  • Open source
  • Freeware

  1. The osu! game client's code is licensed under the MIT licence, copyright ppy Pty Ltd.[1]

  2. The MIT licence for osu! does not cover use of the "osu!" or "ppy" branding, which is protected by trademark law, and game resources are covered by a separate licence.[2]

  3. Most content in the osu-resources repository is licensed under CC BY-NC 4.0, permitting only non-commercial use; some fonts carry their own licences.[3]

  4. osu! is described as free-to-win: supporting osu! gives no competitive advantage, and the game is funded by player contributions rather than advertising or sponsors.[4]

  5. Use of the osu! website and services is governed by the osu! terms of service offered by ppy Pty Ltd, last updated 8 March 2021.[5]

Products

References

  1. osu/LICENCE at master · ppy/osu · GitHub · github.com · retrieved 2026-09-27
  2. GitHub - ppy/osu: rhythm is just a *click* away! · GitHub · github.com · retrieved 2026-09-27
  3. GitHub - ppy/osu-resources: assets used by osu! · GitHub · github.com · retrieved 2026-09-27
  4. support the game | osu! · osu.ppy.sh · retrieved 2026-09-27
  5. Legal / osu! terms of service · information | osu! · osu.ppy.sh · effective 2021-03-08 · retrieved 2026-09-27
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