Game Development · head to head
Bevy vs Mozilla Hubs

Bevy
Game Development
A refreshingly simple data-driven game engine built in Rust
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Bevy rust only, so it assumes a language most game teams do not already use; Mozilla Hubs the Internet Archive's capture of Mozilla Hubs' homepage on 31 December 2022 priced the Early Access Hub at $20 USD/month for unlimited spaces, 25 online guest capacity, and 2GB asset storage; the product's own support URL now redirects to a page titled 'end-support-mozilla-hubs', indicating the service has since been discontinued.
- They diverge on capability: Bevy covers Entity Component System, Mozilla Hubs covers Browser-based VR.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Bevy and Mozilla Hubs actually diverge.
| Attribute | Bevy | Mozilla Hubs |
|---|---|---|
| Pricing model | free | freemium |
| Platforms | Windows, Macos, Linux, Webgl | Webvr, Web, Vr, Mobile |
| Category | Game Development | AR VR |
| Founded | 2020 | 1998 |
Identical on both: starting price (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 Mozilla Hubs
- Browser-based VR
- Room creation
- Avatar system
- Spatial audio
- Spoke editor
- Custom assets
- Webhooks
- Webvr 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 Mozilla Hubs
- Data-driven design using an entity component systemnot Mozilla Hubs
- Shipping to Windows, macOS, Linux, web, iOS and Android from one codebasenot Mozilla Hubs
- Projects wanting a permissive licence with no royalties or feesnot Mozilla Hubs
Mozilla Hubs
- 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
Mozilla Hubs
- The Internet Archive's capture of Mozilla Hubs' homepage on 31 December 2022 priced the Early Access Hub at $20 USD/month for unlimited spaces, 25 online guest capacity, and 2GB asset storage; the product's own support URL now redirects to a page titled 'end-support-mozilla-hubs', indicating the service has since been discontinued.
Pricing, plan by plan
Bevy
Free- Open SourceFree
- Full engine access
- ECS architecture
- Hot reloading
Mozilla Hubs
Free- FreeFree
- Public rooms
- Avatar customization
- Screen sharing
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.
Choose Mozilla Hubs if
- You need browser-based vr.
- You want to start without paying.
- You work on Webvr, Web, Vr, Mobile.
- You also want room creation.
Questions people ask
- Is Bevy or Mozilla Hubs better?
- Neither clearly leads. Bevy starts at Free and Mozilla Hubs at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Bevy or Mozilla Hubs?
- Bevy starts at Free and Mozilla Hubs at Free.
- Does Bevy or Mozilla Hubs run on more platforms?
- Bevy runs on Windows, Macos, Linux, Webgl. Mozilla Hubs runs on Webvr, Web, Vr, Mobile.
- 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 Mozilla Hubs is typically brought in for.
- What can Bevy do that Mozilla Hubs cannot?
- Bevy covers Entity Component System, 2D/3D rendering, Audio system, Asset pipeline. Mozilla Hubs covers Browser-based VR, Room creation, Avatar system, Spatial audio.
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.
SourceBevy: 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.
SourceBevy: 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.
SourceRelated pages
More on Mozilla Hubs
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- Bevy vs WebXR Device API
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- Mozilla Hubs vs Unity
- Mozilla Hubs vs DragonBones
- Mozilla Hubs vs Aseprite
- Mozilla Hubs vs Godot Engine
- Mozilla Hubs vs Fyrox
- Mozilla Hubs vs GameMaker Studio 2
- Mozilla Hubs vs AppGameKit
- Mozilla Hubs vs GDevelop
- Mozilla Hubs vs Pico-8
- Mozilla Hubs vs Buildbox
- Mozilla Hubs vs O3DE
- Mozilla Hubs vs Perforce Helix Core
- Mozilla Hubs vs Cocos2d-x
- Mozilla Hubs vs CryEngine
- Mozilla Hubs vs Defold
- Mozilla Hubs vs Flax Engine
- Mozilla Hubs vs FMOD
- Mozilla Hubs vs Meta Quest
- Mozilla Hubs vs ARCore
- Mozilla Hubs vs ARKit
- Mozilla Hubs vs Frame VR
- Mozilla Hubs vs AltspaceVR
- Mozilla Hubs vs VRChat
- Mozilla Hubs vs A-Frame
- Mozilla Hubs vs Spatial
- Mozilla Hubs vs Virbela
- Mozilla Hubs vs Bigscreen
- Mozilla Hubs vs Varjo
- Mozilla Hubs vs Virtual Desktop
- Mozilla Hubs vs vSpatial
- Mozilla Hubs vs WebXR Device API
- Mozilla Hubs vs Xreal Air
- Mozilla Hubs vs Horizon Worlds
- Mozilla Hubs vs Apple Vision Pro

