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Open 3D Engine

by Open 3D Engine

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What Open 3D Engine is

Open 3D Engine (O3DE) is a free, open-source, cross-platform real-time 3D engine for creating interactive experiences such as games and simulations. Its modular design lets developers select, customize, or replace Gems. Atom, its modular physically based renderer, supports DirectX 12, Vulkan, and Metal. Project logic can be built with visual Script Canvas or Lua, and both can be used in the same project; C++ is also listed as a scripting language. O3DE includes multiplayer tools and mobile export. Documented simulation SDK integrations include NVIDIA PhysX, NVIDIA Cloth, and AMD TressFX, and the project describes robotics use through integration with ROS. A unified asset processor works with JSON-formatted assets and manifests, and asset builders can be scripted with Python. The networking Gem supports TCP and UDP transport, encryption, compression, and player-hosted or dedicated-server models. Windows and Linux are supported host and target platforms, and Android is a target platform. macOS and iOS support are experimental. Downloads for Linux and Windows are available. The project uses a community-led model and is housed by the Open 3D Foundation, part of the nonprofit Linux Foundation.

Who it suits

O3DE suits developers creating games, simulations, or other interactive 3D experiences who want an open-source engine with visual and code-based scripting. Its documented robotics, simulation, multiplayer, and mobile capabilities may also suit projects built around those needs.

What it does well

  • Free and open-source.
  • Modular Gems can be selected, customized, or replaced.
  • Script Canvas and Lua can be combined in one project.
  • Networking supports TCP/UDP, encryption, and compression.
  • Includes a unified asset processor and Python-scriptable builders.

What to know first

  • macOS and iOS support are experimental.
  • Downloads are listed for Linux and Windows.

Plans

PlanBilled and limitsPrice
Open 3D EngineOpen source · Free · Linux and Windows downloadsFree

As o3de.org lists them, read 9 Oct 2026. The maker's own page has the final word.

Getting started

  1. Visit https://o3de.org/.
  2. Choose a Linux or Windows download.
  3. Select and configure the Gems needed for your project.
  4. Create runtime logic with Script Canvas, Lua, or C++.
  5. Use the asset processor to prepare project assets.

Verdict

Choose O3DE if you want a free, open-source engine with modular components, visual scripting, networking, and simulation integrations. Check platform support carefully if your work depends on macOS or iOS, where support is experimental.

Questions

Is Open 3D Engine free?

Yes. O3DE is free and open source; its listed plan is free.

Which platforms does it support?

Windows and Linux are supported host and target platforms, and Android is a target. macOS and iOS support are experimental.

Can I use visual scripting?

Yes. O3DE includes Script Canvas, and projects can also use Lua alongside it.

What languages are listed?

C++, Lua, and Script Canvas are listed.

Who makes Open 3D Engine?

The maker is Open 3D Engine. The Open 3D Foundation, which houses the project, is part of the nonprofit Linux Foundation.

Facts from Open 3D Engine's own pages

Asset workflow
O3DE includes a unified asset processor, supports JSON-formatted assets and manifests, and allows asset builders to be scripted with Python. · docs.o3de.org, 9 Oct 2026
Community support
The site points users to Discord, GitHub forums, and FAQs for support. · o3de.org, 9 Oct 2026
Download availability
The download page describes O3DE as open source and free and lists downloads for Linux and Windows. · o3de.org, 9 Oct 2026
Founded
2021 · o3de.org, 28 Sept 2026
Free plan
Yes · o3de.org, 24 Sept 2026
Maintainer support
The O3DE FAQ says the project uses a community-led model and will continue supporting CI/CD infrastructure, website hosting, code repositories, and technical governance. · o3de.org, 9 Oct 2026
Mobile export
Yes · o3de.org, 24 Sept 2026
Modular design
The engine is composed of Gems that developers can select, customize, or replace. · docs.o3de.org, 9 Oct 2026
Multiplayer tools
Yes · o3de.org, 24 Sept 2026
Networking
The networking Gem supports TCP/UDP transport, encryption and compression, and player-hosted or dedicated-server models. · docs.o3de.org, 9 Oct 2026
Organization
The Open 3D Foundation, which houses O3DE, is part of the nonprofit Linux Foundation. · o3df.org, 9 Oct 2026
Physics integrations
The documented simulation SDK integrations include NVIDIA PhysX, NVIDIA Cloth, and AMD TressFX. · docs.o3de.org, 9 Oct 2026
Purpose
O3DE is an open-source, cross-platform real-time 3D engine for creating interactive experiences, including games and simulations. · docs.o3de.org, 9 Oct 2026
Renderer
O3DE uses Atom, a modular physically based renderer with DirectX 12, Vulkan, and Metal graphics API support. · docs.o3de.org, 9 Oct 2026
ROS integration
The O3DE home page describes robotics use through deep integration with the Robot Operating System (ROS). · o3de.org, 9 Oct 2026
Scripting
Runtime logic can be created with visual Script Canvas or Lua, and both can be used in the same project. · docs.o3de.org, 9 Oct 2026
Scripting languages
C++,Lua,Script Canvas · o3de.org, 24 Sept 2026
Security reporting
The security guidance asks vulnerability reporters to use [email protected] and says the SIG-Security response team should respond within three working days. · docs.o3de.org, 9 Oct 2026
Source code model
open_source · o3de.org, 24 Sept 2026
Supported platforms
Windows and Linux are listed as supported host and target platforms; Android is listed as a target, while macOS and iOS support are described as experimental. · docs.o3de.org, 9 Oct 2026
Target platforms
Windows,Linux,Android · o3de.org, 24 Sept 2026
Visual scripting
Yes · o3de.org, 24 Sept 2026

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