Ada Engine
Ada Engine: A focused, free engine for developers exploring custom 2D and 3D workflows. Ranked #78 of 91 in Game Engine Software by our editors (3.0/10); pricing: Free plan; best for experimental open-source 3D developers.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forExperimental open-source 3D developers
- Free planYes
- Paid fromFree
- Source code modelOpen_source
- Facts checked24 Sep 2026
Where it wins
- MIT licensed with no royalties or runtime fees
- Combines 2D/3D rendering, physics, ECS, UI, and scripting
- Render graphs support custom render pipelines
Where it doesn't
- Currently under development
- Documented target platforms are Windows and Linux
- Gameplay scripting centers on Swift and AdaScript
Our verdict on Ada Engine
Ada Engine is an open-source game engine written in Swift for developers creating 2D and 3D games or interactive applications. Its architecture combines an entity-component system with AdaScript gameplay scripting through the Gravity language runtime. The engine is aimed at developers who want to explore a code-oriented, customizable foundation rather than adopt a large commercial production ecosystem. Its documented target platforms are Windows and Linux.
The free and open-source plan is MIT licensed and carries no royalties or runtime fees. That makes Ada Engine straightforward to evaluate for independent projects and experiments without a paid tier structure. Its technical scope is broader than a minimal rendering framework: 3D features include cameras, materials, lighting, skyboxes, physics through Box3D, and render pipelines, while 2D development includes real-time rendering, custom shaders and materials, and Box2D v3 physics. Developers can also use the custom UI engine, which follows a SwiftUI-like approach.
Customization is the clearest reason to choose Ada Engine. Render graph support enables custom render pipelines, while the ECS architecture and scripting options give technically oriented developers room to shape project structure and gameplay systems. The trade-off is maturity and reach: the project is currently under development, and its documented platform scope centers on Windows and Linux. Gameplay scripting uses Swift and AdaScript, rather than a visual node-based workflow. Choose Ada Engine for experimental open-source 3D work, custom rendering, and low licensing overhead; choose an alternative if you need a more established deployment breadth or a documented visual scripting and multiplayer toolset.
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Ada Engine pricing
Ada Engine fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Source code model | Open_source |
| Visual scripting | Not verified |
| Multiplayer tools | Not verified |
| Mobile export | Not verified |
| Console export | Not verified |
| Target platforms | Not verified |
| Scripting languages | Rust |
| Deployment | Self-hosted |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | adaengine.org |
| Facts checked | 24 Sep 2026 |
Alternatives to Ada Engine
- Godot EngineA flexible open-source engine for 2D, 3D, multiplayer, and XR projects.9.2
- PlayCanvasA capable web-first engine for collaborative 2D and 3D game development.9.0
- GameMakerA focused 2D engine with free non-commercial access and wide export coverage.8.9
See all Ada Engine alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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