Bevy vs CRYENGINE

Bevy is a free, open-source game engine built in Rust for 2D and 3D games, visualizations, interfaces, and other graphical applications. It uses a custom Entity Component System, with components represented as Rust structs and systems as Rust functions. The engine includes 2D and 3D rendering, a composable render graph, skeletal and morph-target animation, scene loading, hot reloading, UI, and audio playback. Its 2D renderer supports sprites, texture atlases, cameras, materials, custom shaders, and render pipelines. The 3D renderer includes lights, shadows, meshes, materials, cameras, and glTF loading. The ECS-driven UI framework uses flex-box layout and can be composed in code or scenes. Scene changes can update running applications; hot reloading currently covers scenes, textures, and meshes. Bevy targets Windows, macOS, Linux, web, iOS, and Android, and is available through crates.io with cargo add bevy. Users choose MIT or Apache 2.0 licensing, with no license fees or sales cuts. It remains in development, with possible missing features, sparse documentation, and breaking API changes about every three months.

CRYENGINE is a game engine for building projects targeting PC, consoles, mobile, web and VR. Its offering includes full source code, engine features and access to supported platforms. Developers can use C++, Lua or Schematyc visual scripting, along with multiplayer tools and mobile export. The Sandbox Editor creates worlds without baking and exports them as they appear in the editor. Rendering includes dynamic global illumination and a physically based rendering workflow; physics simulations account for physical properties. The engine also includes particle tools, animation systems and a physics solution for dynamic destruction. CRYENGINE can be used for free under royalty-based licensing: a 5% royalty applies when a project ships, while the first $5K in annual revenue per project is royalty-free. Documentation includes guides and tutorials, and community channels include Discord and GitHub. The maker was founded in 1999 and is headquartered in Frankfurt, Germany.