<div align="center">
  <img src="https://sbox.game/img/sbox-logo-square.svg" width="80px" alt="s&box logo">

  [Website] | [Getting Started] | [Forums] | [Documentation] | [Contributing]
</div>

[Website]: https://sbox.game/
[Getting Started]: https://sbox.game/dev/doc/about/getting-started/first-steps/
[Forums]: https://sbox.game/f/
[Documentation]: https://sbox.game/dev/doc/
[Contributing]: CONTRIBUTING.md

# s&box

s&box is a modern game engine, built on Valve's Source 2 and the latest .NET technology, it provides a modern intuitive editor for creating games.

![s&box editor](https://files.facepunch.com/matt/1b2211b1/sbox-dev_FoZ5NNZQTi.jpg)

If your goal is to create games using s&box, please start with the [getting started guide](https://sbox.game/dev/doc/about/getting-started/first-steps/).
This repository is for building the engine from source for those who want to contribute to the development of the engine.

## Getting the Engine

### Steam

You can download and install the s&box editor directly from [Steam](https://sbox.game/give-me-that).

### Compiling from Source

If you want to build from source, this repository includes all the necessary files to compile the engine yourself.

#### Prerequisites

* [Git](https://git-scm.com/install/windows)
* [Visual Studio 2026](https://visualstudio.microsoft.com/)
* [.NET 10 SDK](https://dotnet.microsoft.com/en-us/download)

#### Building

```bash
# Clone the repo
git clone https://github.com/Facepunch/sbox-public.git
```

Once you've cloned the repo simply run `Bootstrap.bat` which will download dependencies and build the engine.

The game and editor can be run from the binaries in the game folder.

## Contributing

If you would like to contribute to the engine, please see the [contributing guide](CONTRIBUTING.md).

If you want to report bugs or request new features, see [sbox-issues](https://github.com/Facepunch/sbox-issues/).

## Documentation

Full documentation, tutorials, and API references are available at [sbox.game/dev/](https://sbox.game/dev/).

## License

The s&box engine source code is licensed under the [MIT License](LICENSE.md).

Certain native binaries in `game/bin` are not covered by the MIT license. These binaries are distributed under the s&box EULA. You must agree to the terms of the EULA to use them.

This project includes third-party components that are separately licensed.
Those components are not covered by the MIT license above and remain subject
to their original licenses as indicated in `game/thirdpartylegalnotices`.