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Flax Engine vs Substance 3D Painter

Flax Engine logo

Flax Engine

Game Development

Modern 3D game engine with visual editor

From
Free
Rated
-
Full reviewWebsite
Substance 3D Painter logo

Substance 3D Painter

Game Development

3D texture painting software

From
$29/month
Rated
-
Full reviewWebsite

The short version

  • Only Flax Engine has a free tier, so it costs nothing to try first.
  • They diverge on capability: Flax Engine covers 3D graphics rendering, Substance 3D Painter covers 3D painting.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Flax Engine and Substance 3D Painter actually diverge.

Attributes where Flax Engine and Substance 3D Painter differ
AttributeFlax EngineSubstance 3D Painter
Starting priceFree$29/month
Pricing modelfreesubscription
Free tierYesNo
PlatformsWindows, Linux, Playstation, XboxWindows, MacOS, Linux
Founded20171982

Identical on both: user rating (Not yet rated), category (Game Development).

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 Flax Engine

  • 3D graphics rendering
  • Visual editor
  • C# scripting
  • Physics engine
  • Audio system
  • Particle effects
  • Skeletal animation
  • Material system

Only in Substance 3D Painter

  • 3D painting
  • Smart materials
  • Generators
  • PBR workflow
  • Baking
  • Export presets
  • Scripting
  • Maya

Both cover

  • Windows support
  • Linux support

What people use each for

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

Flax Engine

  • Building 3D games in C# and C++ with full engine source accessnot Substance 3D Painter
  • Multi-platform deployment from one editornot Substance 3D Painter
  • Prototyping with the bundled Flax Samples projectsnot Substance 3D Painter

Substance 3D Painter

  • Game texturingnot Flax Engine
  • Film assetsnot Flax Engine
  • Product visualizationnot Flax Engine

Where each one falls short

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

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

Substance 3D Painter

Nothing recorded yet. See the Substance 3D Painter review.

Pricing, plan by plan

Flax Engine

Free
  • FreeFree
    • Full engine
    • Visual editor
    • C# scripting

Substance 3D Painter

$29/month
  • Substance 3D Texturing$19.99/month
    • Painter + Sampler
  • Substance 3D Collection$49.99/month
    • All Substance apps

Which should you pick?

Choose Flax Engine if

  • You need 3d graphics rendering.
  • You want to start without paying.
  • You work on Windows, Linux, Playstation, Xbox.
  • You also want visual editor.
Flax Engine review

Choose Substance 3D Painter if

  • You need 3d painting.
  • You work on Windows, MacOS, Linux.
  • You also want smart materials.
Substance 3D Painter review

Questions people ask

Is Flax Engine or Substance 3D Painter better?
Neither clearly leads. Flax Engine starts at Free and Substance 3D Painter at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flax Engine or Substance 3D Painter?
Flax Engine has a free tier; the other does not. Paid plans start at Free for Flax Engine and $29/month for Substance 3D Painter.
Does Flax Engine or Substance 3D Painter run on more platforms?
Flax Engine runs on Windows, Linux, Playstation, Xbox. Substance 3D Painter runs on Windows, MacOS, Linux.
Can I use Flax Engine for free?
Yes. Flax Engine has a free tier, so you can try it without paying. Substance 3D Painter starts at $29/month.
What is Flax Engine best used for?
Flax Engine is most often used 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. Of those, building 3d games in c# and c++ with full engine source access and multi-platform deployment from one editor are not what Substance 3D Painter is typically brought in for.
What can Flax Engine do that Substance 3D Painter cannot?
Flax Engine covers 3D graphics rendering, Visual editor, C# scripting, Physics engine. Substance 3D Painter covers 3D painting, Smart materials, Generators, PBR workflow. Both handle Windows support, Linux support.

Answered from the vendors’ own pages

Flax Engine: 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.

Source
Substance 3D Painter: Does Substance 3D Painter offer a free trial?

Free trial availability for Substance 3D Painter cannot be confirmed from publicly accessible pricing pages. Check the product page directly or contact Adobe for current trial offers.

Source
Flax Engine: Is 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.

Source
Flax Engine: Do 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.

Source
Flax Engine: Does 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.

Source
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