Flax Enginevs
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Flax Engine
Modern 3D game engine with visual editor
As of 30 August 2026, Flax Engine is free to use. Flax Engine is a free, open-source 3D game engine with an intuitive visual editor. Softwr lists it under Game Development. Flax Engine is made by Flax Team, launched in 2017, available on Windows, Linux, TV and console.
Overview
What Flax Engine does
Flax Engine is a free, open-source 3D game engine with an intuitive visual editor. It supports C# scripting and multiple platforms.
What people use it for
- Building 3D games in C# and C++ with full engine source access
- Multi-platform deployment from one editor
- Prototyping with the bundled Flax Samples projects
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Flax Engine.
- Flax charges a 4% royalty on game earnings above $250,000, assessed per calendar quarter
- Free use is granted for non-commercial or educational usage; commercial releases fall under the royalty
- Users must accept the Flax Engine End-User License Agreement before using the engine or its tools, so it is not an OSI open source licence despite the source being on GitHub
- Non-game uses such as in-house tools or SaaS products need a custom licence negotiated with the vendor, and no rate card is published for per-seat or flat-fee options
Cross-shopped
What people choose instead of Flax Engine
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- Flax EnginevsUnity
Unity: Create beautiful interactive content with the world's leading real-time engine
- Flax EnginevsAseprite
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- Flax EnginevsGodot Engine
Godot Engine: Free and open-source 2D and 3D game engine
Pricing
What Flax Engine costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Free
Free
- Full engine
- Visual editor
- C# scripting
- 3D graphics
- Physics engine
- Audio support
Capabilities
Features
3D graphics rendering
Visual editor
C# scripting
Physics engine
Audio system
Particle effects
Skeletal animation
Material system
Lighting system
C#
Integration with C#
.NET
Integration with .NET
Visual Studio
Integration with Visual Studio
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
How much does Flax Engine cost?
Flax Engine is free during development. Once you ship a game commercially, you pay a 4% royalty on earnings only if your quarterly revenue exceeds $250,000 in a calendar quarter. Below that threshold, there is no royalty charge.
SourceIs Flax Engine free for educational and uncommercial projects?
Yes. Flax Engine is free for uncommercial or educational usage. You only pay royalties when you release a commercial product that exceeds the $250,000 quarterly earnings threshold.
SourceDo all Flax Engine users get access to the same features?
Yes. There is one version of Flax Engine. All users get full engine access with all features, supported platforms, complete editor source code on GitHub, sample projects, and free deployment to all supported platforms.
SourceDoes Flax Engine offer custom licensing options?
Yes. For non-game industries or specific needs, Flax Engine offers custom licensing including per-seat licensing (monthly or yearly) or flat fees per project, with pricing based on team size and product use case.
SourceBehind it
Who makes Flax Engine
- Company
- Flax Team
- Based in
- Community-driven
Keep looking
Where to go from Flax Engine
- Flax Engine alternativesEvery product people weigh against it
- Flax Engine pricingPlans, floors and what the tiers exclude
- Flax Engine badgesWhich rules it meets, and the figure behind each
- All Game Development softwareThe full category
- Best Game Development softwareThe shortlist, and how it was cut
Best Game Development software for
Compare Flax Engine with
- Godot Engine
- Unity
- Aseprite
- DragonBones
- Stride
- LDtk
- Lumberyard
- Fyrox
- Cascadeur
- Mixamo
- Armory3D
- Cocos Creator
- GDevelop
- jMonkeyEngine
- libGDX
- LDtk
- Gamesparks
- Fyrox
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Softwr does not host reviews and shows no star rating for Flax Engine, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
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