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Game Development · head to head

Bevy vs Three.js

Bevy logo

Bevy

Game Development

A refreshingly simple data-driven game engine built in Rust

From
Free
Rated
-
Full reviewWebsite
Three.js logo

Three.js

AR VR

JavaScript 3D library for WebGL and WebXR

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Bevy rust only, so it assumes a language most game teams do not already use; Three.js forward rendering pipeline only, no deferred rendering support
  • They diverge on capability: Bevy covers Entity Component System, Three.js covers WebGL rendering.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Bevy and Three.js actually diverge.

Attributes where Bevy and Three.js differ
AttributeBevyThree.js
PlatformsWindows, Macos, Linux, WebglWeb, macOS, Windows, Linux, iOS, Android
CategoryGame DevelopmentAR VR
Founded20202010

Identical on both: starting price (Free), pricing model (free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Bevy

  • Entity Component System
  • 2D/3D rendering
  • Audio system
  • Asset pipeline
  • Hot reloading
  • Cross-platform
  • Modular architecture
  • Parallel systems

Only in Three.js

  • WebGL rendering
  • Scene graph
  • Materials system
  • Animation system
  • WebXR
  • Post-processing
  • Physics
  • Loaders

Both cover

  • Webgl support

What people use each for

The jobs each tool is most often brought in to do.

Bevy

  • 2D and 3D game development in Rustnot Three.js
  • Data-driven design using an entity component systemnot Three.js
  • Shipping to Windows, macOS, Linux, web, iOS and Android from one codebasenot Three.js
  • Projects wanting a permissive licence with no royalties or feesnot Three.js

Three.js

  • VR Gamingnot Bevy
  • AR Marketingnot Bevy
  • Virtual Trainingnot Bevy
  • 3D Visualizationnot Bevy
  • Immersive Experiencesnot Bevy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Bevy

  • Rust only, so it assumes a language most game teams do not already use
  • No visual editor of the kind Unity or Godot provide, so scenes and logic are written in code
  • Built around ECS, which is a different mental model from the scene-graph engines most developers come from

Three.js

  • Forward rendering pipeline only, no deferred rendering support
  • No built-in collision detection or spatial indexing, requiring external physics libraries
  • WebGL dependency means no support for non-WebGL environments

Pricing, plan by plan

Bevy

Free
  • Open SourceFree
    • Full engine access
    • ECS architecture
    • Hot reloading

Three.js

Free
  • FreeFree
    • Full library
    • WebXR module
    • Examples

Which should you pick?

Choose Bevy if

  • You need entity component system.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Webgl.
  • You also want 2d/3d rendering.
Bevy review

Choose Three.js if

  • You need webgl rendering.
  • You want to start without paying.
  • You work on Web, macOS, Windows, Linux, iOS, Android.
  • You also want scene graph.
Three.js review

Questions people ask

Is Bevy or Three.js better?
Neither clearly leads. Bevy starts at Free and Three.js at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bevy or Three.js?
Bevy starts at Free and Three.js at Free.
Does Bevy or Three.js run on more platforms?
Bevy runs on Windows, Macos, Linux, Webgl. Three.js runs on Web, macOS, Windows, Linux, iOS, Android.
Can I use Bevy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Bevy best used for?
Bevy is most often used for 2d and 3d game development in rust, data-driven design using an entity component system, shipping to windows, macos, linux, web, ios and android from one codebase, projects wanting a permissive licence with no royalties or fees. Of those, 2d and 3d game development in rust and data-driven design using an entity component system are not what Three.js is typically brought in for.
What can Bevy do that Three.js cannot?
Bevy covers Entity Component System, 2D/3D rendering, Audio system, Asset pipeline. Three.js covers WebGL rendering, Scene graph, Materials system, Animation system. Both handle Webgl support.

Answered from the vendors’ own pages

Bevy: How much does Bevy Engine cost?

Bevy is 100% free, forever. There are no licensing fees, contracts, or sales cuts, whether for development, deployment, or commercial use.

Source
Three.js: Is Three.js free to use?

Yes. Three.js is released under the MIT license, an open-source license that permits unlimited commercial and personal use with no licensing fees.

Source
Bevy: Is Bevy Engine open source?

Yes. Bevy is open source under the permissive MIT or Apache 2.0 licenses, meaning you can use, modify, and distribute it freely.

Source
Three.js: Does Three.js include physics simulation?

No. Three.js is a rendering library only. Physics, collision detection, and spatial indexing must be implemented with external libraries like Rapier, Ammo, or JoltPhysics.

Source
Bevy: Are there any hidden costs with Bevy Engine?

No. Bevy has no license fees, contracts, or hidden charges. It is community-driven and funded through voluntary donations rather than commercial licensing.

Source
Three.js: Can I use Three.js for offline development?

Yes. Local development requires a local web server for CORS compliance. You can use npm with a build tool like Vite, or run a local Python server for development.

Source
Three.js: Does Three.js support WebXR for VR/AR?

Yes. Three.js documentation includes WebXR APIs for building VR and AR experiences in web browsers.

Source
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