Stack Gems
Menu
WorkbenchBestNewSkillsLogAboutSubmit

Alternatives · Game Engines

Bevy alternatives (2026)

Bevy: MIT/Apache Rust game engine. Web via Wasm; not a JS canvas framework.

Its Catch: Rust ECS + first-party Web — not Phaser/Pixi/Babylon/PlayCanvas JS engines.

Below: 8 free or free-tier tools from the same category (game engines), free and open source first, then the closest match by shared tags. Each keeps its own Catch.

  1. 1.PhaserMIT HTML5 2D game framework with scenes, physics, and tilemaps

    Free / OSS · OSS/MIT · 40.5k GitHub stars

    VerdictDefault 2D HTML5 game framework. MIT engine; Editor is paid and optional.

    CatchPhaser 4 replaced the v3 renderer/FX/mask stack — v3 games need the migration guide. Phaser Editor is a separate commercial desktop product, not the OSS engine. The homepage can Cloudflare-gate a raw fetch; docs and GitHub are the source of truth.

  2. 2.PlayCanvasMIT WebGL2/WebGPU engine plus an optional hosted Editor

    Free / OSS · Freemium · 17.1k GitHub stars

    VerdictOSS engine, optional Editor. Public projects are free; private cloud is not.

    CatchDo not conflate the MIT engine with the hosted Editor. Private cloud projects are the paid line (Personal 15 USD/month; Organization 50 USD per seat/month). Cancel and private projects lock until you resubscribe or make them public.

  3. 3.KAPLAYMIT successor to Kaboom for playground-first 2D games

    Free / OSS · OSS/MIT · 1.8k GitHub stars

    VerdictThe living Kaboom successor. MIT, playground-first, not Phaser.

    CatchTwo lines: stable v3001 vs v4000 still alpha. Official host is kaplayjs.com, not kaboomjs.com. Named homepage titles are testimonials, not a studio showcase.

  4. 4.melonJSMIT 2D engine: WebGPU to WebGL2 to Canvas AUTO, zero deps

    Free / OSS · OSS/MIT · 6.4k GitHub stars

    VerdictMIT zero-dep 2D engine. Not Phaser.

    CatchWebGPU to WebGL2 to Canvas AUTO and Canvas2D-shaped API — not Phaser scene/plugin ecosystem. W4 cut re-opened. Distinct from Phaser, KAPLAY, and PixiJS.

  5. 5.DefoldSource-available Lua game engine; forever free, not OSI Open Source

    Free / OSS · Open-Core · 6.4k GitHub stars

    VerdictForever-free Lua engine. Source-available — not OSI OSS; do not ship it as your own engine product.

    CatchSource-available NOT OSI Open Source — §4a may not commercialize as a Game Engine Product. Forever free for making games; license is not MIT/Apache. Vs Phaser/melonJS/KAPLAY JS engines. Distinct from Phaser, melonJS, and KAPLAY.

  6. 6.Cute Frameworkzlib/Unlicense C/C++ native-first framework + Emscripten

    Free / OSS · OSS/MIT · 852 GitHub stars

    VerdictPermissive C/C++ game framework. Native-first; web via Emscripten.

    CatchC/C++ native-first + Emscripten — not Phaser/KAPLAY JS engines. Full framework — not Pixi/Babylon/PlayCanvas renderer-or-editor slots alone. Distinct from Phaser, KAPLAY, Pixi, Babylon, and PlayCanvas.

  7. 7.GodotMIT engine with HTML5/Wasm+WebGL2; Compatibility mode for embeds

    Free / OSS · OSS/MIT · 119k GitHub stars

    VerdictMIT Godot. Web works in Compatibility/WebGL2; plan COOP/COEP only if you need threads.

    CatchCompatibility/WebGL2 only for web; threaded export needs COOP/COEP — single-thread default since 4.3 for embeds. Not Phaser JS canvas. Distinct from Phaser.

  8. 8.HeapsMIT Haxe+HashLink engine; HTML5/WebGL; Dead Cells stack

    Free / OSS · OSS/MIT · 3.5k GitHub stars

    VerdictMIT Haxe engine. HTML5/WebGL path; not a JS canvas framework.

    CatchHaxe+HashLink HTML5/WebGL — not Phaser/Godot/Defold/Cute Framework/melonJS/Bevy. Different language/runtime bet. Distinct from Phaser, Godot, Defold, Cute Framework, melonJS, and Bevy.

FAQ

What are the best free alternatives to Bevy?
Phaser, PlayCanvas, KAPLAY, melonJS, Defold. All are reviewed on Stack Gems in the same category (game engines); 8 free or open source.
What is the catch with Bevy?
Rust ECS + first-party Web — not Phaser/Pixi/Babylon/PlayCanvas JS engines.
Is there an open-source alternative to Bevy?
Yes: Phaser (OSS/MIT), PlayCanvas (Freemium), KAPLAY (OSS/MIT), melonJS (OSS/MIT).

More