bevyengine /bevy
A refreshingly simple data-driven game engine built in Rust
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README
What is Bevy?
Bevy is a refreshingly simple data-driven game engine built in Rust. It is free and open-source forever!
WARNING
Bevy is still in the early stages of development. Important features are missing. Documentation is sparse. A new version of Bevy containing breaking changes to the API is released approximately once every 3 months. We provide migration guides, but we can't guarantee migrations will always be easy. Use only if you are willing to work in this environment.
MSRV: Bevy relies heavily on improvements in the Rust language and compiler.
As a result, the Minimum Supported Rust Version (MSRV) is generally close to "the latest stable release" of Rust.
Design Goals
Capable: Offer a complete 2D and 3D feature set
Simple: Easy for newbies to pick up, but infinitely flexible for power users
Data Focused: Data-oriented architecture using the Entity Component System paradigm
Modular: Use only what you need. Replace what you don't like
Fast: App logic should run quickly, and when possible, in parallel
Productive: Changes should compile quickly ... waiting isn't fun
About
Features: A quick overview of Bevy's features.
News: A development blog that covers our progress, plans and shiny new features.
Docs
Quick Start Guide: Bevy's official Quick Start Guide. The best place to start learning Bevy.
Bevy Rust API Docs: Bevy's Rust API docs, which are automatically generated from the doc comments in this repo.
Official Examples: Bevy's dedicated, runnable examples, which are great for digging into specific concepts.
Community-Made Learning Resources: More tutorials, documentation, and examples made by the Bevy community.
Community
Before contributing or participating in discussions with the community, you should familiarize yourself with our Code of Conduct.
Discord: Bevy's official discord server.
Reddit: Bevy's official subreddit.
GitHub Discussions: The best place for questions about Bevy, answered right here!
Bevy Assets: A collection of awesome Bevy projects, tools, plugins and learning materials.
Contributing
If you'd like to help build Bevy, check out the Contributor's Guide.
For simple problems, feel free to open an issue or
PR and tackle it yourself!
For more complex architecture decisions and experimental mad science, please open a GitHub Discussion so we can brainstorm together effectively!
Getting Started
We recommend checking out the Quick Start Guide for a brief introduction.
Follow the Setup guide to ensure your development environment is set up correctly.
Once set up, you can quickly try out the examples by cloning this repo and running the following commands:
sh
Switch to the correct version (latest release, default is main development branch)
git checkout latest
Runs the "breakout" example
cargo run --example breakout
To draw a window with standard functionality enabled, use:
rust
use bevy::prelude::;
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.run();
}Top issues
#85Bevy Editor140 comments · 2020-08-05#10261Very high CPU usage on MacOS94 comments · 2023-10-25#1110LINK : fatal error LNK1189: library limit of 65535 objects exceeded47 comments · 2020-12-21#11478Remove or shrink bevy_utils44 comments · 2024-01-22#14275Our API suggests that panicking should be the default41 comments · 2024-07-11#7544Window transparency broken on Windows38 comments · 2023-02-07#17130.add_systems DONT WORK36 comments · 2025-01-03#14710UI elements randomly disappear for some frames on specific android devices36 comments · 2024-08-11
Discussions
#26448step_link & bevy_step_link: Direct STEP CAD file loading in Bevy (Pure Rust B-Rep parser)0 comments · 2026-11-07#26312AI characters - convai / inworld integration0 comments · 2026-10-25#26311Is there a support for state-based styling in bevy_ui ?1 comments · 2026-10-19#26230How do I setup wgsl-analyzer with bevy2 comments · 2026-10-18#26224Is there an idiomatic way to get a specific StandardMaterial from a given gltf/glb file by name? What about index?2 comments · 2026-10-18#26207Will there be any issues with using `Vec` as a storage in Bevy ECS?1 comments · 2026-10-16#26180Reflecting on the state of Reflection8 comments · 2026-10-15#26115FromTemplate field defaults (ImageRenderTargetTemplate::scale_factor defaults to 0)0 comments · 2026-10-11
Latest release
v0.20.1 v0.20.1 2026-10-28A full diff of what's in this release can be seen here: https://github.com/bevyengine/bevy/compare/v0.20.0...v0.20.1