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Game Development · head to head

O3DE vs Three.js

O3DE logo

O3DE

Game Development

Open 3D Engine - Professional game engine

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: O3DE minimum hardware is a quad-core 2.5 GHz x86 CPU with SSE 4.1, 16 GB RAM and a DirectX 12 or Vulkan GPU with 2 GB VRAM and Shader Model 6.2; Three.js forward rendering pipeline only, no deferred rendering support
  • They diverge on capability: O3DE covers 3D graphics rendering, Three.js covers WebGL rendering.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which O3DE and Three.js actually diverge.

Attributes where O3DE and Three.js differ
AttributeO3DEThree.js
PlatformsWindows, Macos, Linux, Ios, Android, Playstation, XboxWeb, macOS, Windows, Linux, iOS, Android
CategoryGame DevelopmentAR VR
Founded20212010

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 O3DE

  • 3D graphics rendering
  • Modular architecture
  • Physics engine
  • Audio system
  • Animation tools
  • Particle effects
  • Material system
  • Lighting system

Only in Three.js

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

What people use each for

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

O3DE

  • Building 3D games and simulations on an open source Apache-licensed enginenot Three.js
  • Robotics and industrial simulation using O3DE Gemsnot Three.js
  • Projects that need full engine source access with no royaltynot Three.js

Three.js

  • VR Gamingnot O3DE
  • AR Marketingnot O3DE
  • Virtual Trainingnot O3DE
  • 3D Visualizationnot O3DE
  • Immersive Experiencesnot O3DE

Where each one falls short

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

O3DE

  • Minimum hardware is a quad-core 2.5 GHz x86 CPU with SSE 4.1, 16 GB RAM and a DirectX 12 or Vulkan GPU with 2 GB VRAM and Shader Model 6.2
  • Raytracing features require Shader Model 6.3
  • Disk space required is 40 GB using the prebuilt installer and 100 GB or more when building from source
  • Building the engine from source needs 2 GB of RAM per build thread on top of normal system requirements
  • On Windows the editor requires Windows 10 version 20H2 or later plus Visual Studio 2019 16.11.x, 2022 17.3.x or 2026 18.0.x with the Game development with C++ workload
  • The only primary Linux distribution for the editor is Ubuntu 22.04 LTS, and Ubuntu on 64-bit ARMv8 is experimental
  • Linux builds need CMake 3.30.0 or later, which is newer than the 3.22 shipped by default with Ubuntu 22.04
  • Wayland support is experimental, requires building from source, and is limited to the Game Launcher with no editor support until O3DE moves to Qt6
  • Linux requires a long list of additional apt library packages to be installed before building

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

O3DE

Free
  • FreeFree
    • Full engine
    • Modular architecture
    • Cross-platform

Three.js

Free
  • FreeFree
    • Full library
    • WebXR module
    • Examples

Which should you pick?

Choose O3DE if

  • You need 3d graphics rendering.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Ios, Android, Playstation, Xbox.
  • You also want modular architecture.
O3DE 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 O3DE or Three.js better?
Neither clearly leads. O3DE 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, O3DE or Three.js?
O3DE starts at Free and Three.js at Free.
Does O3DE or Three.js run on more platforms?
O3DE runs on Windows, Macos, Linux, Ios, Android, Playstation, Xbox. Three.js runs on Web, macOS, Windows, Linux, iOS, Android.
Can I use O3DE for free?
Both have a free tier, so you can try either at no cost before committing.
What is O3DE best used for?
O3DE is most often used for building 3d games and simulations on an open source apache-licensed engine, robotics and industrial simulation using o3de gems, projects that need full engine source access with no royalty. Of those, building 3d games and simulations on an open source apache-licensed engine and robotics and industrial simulation using o3de gems are not what Three.js is typically brought in for.
What can O3DE do that Three.js cannot?
O3DE covers 3D graphics rendering, Modular architecture, Physics engine, Audio system. Three.js covers WebGL rendering, Scene graph, Materials system, Animation system.

Answered from the vendors’ own pages

O3DE: Is O3DE free to download and use?

Yes, O3DE is completely free and open source, available for download at no cost under continuous development.

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
O3DE: How is O3DE funded if it is free?

O3DE is supported through optional donations and member organization contributions rather than user licensing fees.

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
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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