bevy

Bevy is an open-source, data-driven game engine written in Rust. It emphasizes simplicity, modularity, and performance, and is built around an Entity-Component-System (ECS) architecture that separates data from behavior. The engine provides facilities for rendering, input, audio, asset management, UI, and scene organization, with a focus on being easily extensible through a plug-in system.

Bevy's core is its ECS, which enables parallel execution of systems that operate on components. The rendering stack is built on top of the wgpu abstraction layer, supporting both 2D and 3D graphics. An asset server supports loading, streaming, and hot-reloading of assets. Bevy also includes a lightweight UI toolkit and a scene graph, all designed to be modular and replaceable via plugins.

The engine targets modern Rust workflows and seeks to offer a pleasant developer experience, with growing documentation, examples, and community-contributed plugins. Bevy emphasizes data-driven design and minimal boilerplate, while remaining performant through data-oriented layouts and parallel scheduling.

Bevy is distributed under a dual license: MIT and Apache-2.0. It has an active open-source community with online documentation, tutorials, and a GitHub repository that hosts the core engine and ecosystem crates.

Platform support includes desktop operating systems (Windows, macOS, Linux) and experimental WebAssembly/browser deployment; mobile targets are pursued through community efforts.