Bevy vs Stencyl

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.

Stencyl is game creation software for making mobile, web, and desktop games with visual logic or custom code. Its drag-and-drop designer uses snapping blocks and includes hundreds of ready-to-use blocks. Creators can also make and share blocks, import libraries, extend the engine with code, and write Haxe classes that work with block-based Behaviors. The Scene Designer provides selection, zooming, grid-snapping, and flood fill; the Actor Editor adjusts appearance, behaviors, and physical properties. Stencyl targets iOS, Android, Windows, Mac, Linux, and HTML5. The free Starter edition publishes HTML5 games and lets users test games on paid target platforms, but cannot publish desktop, iOS, or Android games and displays Stencyl branding. Indie costs $99 a year and adds web and desktop publishing without watermarks. Studio costs $199 a year and includes publishing to iOS and Android, ads, leaderboards, in-app purchases, and third-party plugins. Publishing iOS games to the App Store requires an active Apple developer license and a Mac. Stencyl says it collects no royalties on games.