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This repository contains the s&box engine source. Contributions here affect the engine itself — things like the scene system, physics, networking, and scripting infrastructure. If you found a bug in a game or addon, report it to the author of that project, not here.

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Ways to contribute

Report a bug

Open an issue on GitHub. Be thorough — steps to reproduce, what you expected, and what happened.

Request a feature

Propose a feature by opening an issue. Explain what it adds and why it’s needed before starting work.

Submit a fix

Fix a bug or implement an accepted feature request. Reference the related issue in your pull request.

Write unit tests

Unit tests are welcomed alongside bug fixes and new features wherever applicable.

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Security issues

Do not open a public GitHub issue for security exploits. Report them privately at facepunch.com/security.

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Before you open a pull request

  • Check that the issue or feature hasn’t already been reported or requested.
  • For new features, make sure there’s an accepted proposal issue before you start coding.
  • Read the contribution guidelines for code style, commit, and PR standards.

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