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Concise practical reference to the Bevy game engine.

Covers useful syntax, features, programming patterns, and solutions for common game development tasks.

Designed to be easy to read, straight to the point, using simple language to focus on the important information.

If you like this book, please consider supporting me via GitHub Sponsors, Patreon, Bitcoin.

I'd like to keep improving and maintaining this book, to provide a high-quality independent learning resource for the Bevy community.

Your donation helps me work on such freely-available content. Thank you! ❤️

All code in the book is provided under the MIT-0 License. At your option, you may also use it under the regular MIT License.

The text of the book is provided under the CC BY-NC-SA 4.0.

Exception: If used for the purpose of contribution to the "Official Bevy Project", the entire content of the book may be used under the MIT-0 License.

"Official Bevy Project" is defined as:

• Contents of the Git repository hosted at https://github.com/bevyengine/bevy
• Contents of the Git repository hosted at https://github.com/bevyengine/bevy-website
• Anything publicly visible on the bevyengine.org website

The MIT-0 license applies as soon as your contribution has been accepted upstream.

GitHub Forks and Pull Requests created for the purposes of contributing to the Official Bevy Project are given the following license exception: the Attribution requirements of CC BY-NC-SA 4.0 are waived for as long as the work is pending upstream review (Pull Request Open). If upstream rejects your contribution, you are given a period of 1 month to comply with the full terms of the CC BY-NC-SA 4.0 license or delete your work. If upstream accepts your contribution, the MIT-0 license applies.

Please file GitHub Issues for any wrong/confusing/misleading information, as well as suggestions for new content you'd like to be added to the book.

Non-trivial Pull Requests are not welcome. File issues instead.

See the Contributing page for all the details.