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Game Development · head to head

Flax Engine vs Tilt Brush

Flax Engine logo

Flax Engine

Game Development

Modern 3D game engine with visual editor

From
Free
Rated
-
Full reviewWebsite
Tilt Brush logo

Tilt Brush

AR VR

Paint in 3D space with VR

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Flax Engine flax charges a 4% royalty on game earnings above $250,000, assessed per calendar quarter; Tilt Brush no longer actively developed by Google since January 2021; future updates and support are not guaranteed
  • They diverge on capability: Flax Engine covers 3D graphics rendering, Tilt Brush 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 Tilt Brush actually diverge.

Attributes where Flax Engine and Tilt Brush differ
AttributeFlax EngineTilt Brush
Pricing modelfreeUnknown
PlatformsWindows, Linux, Playstation, XboxHTC Vive, Oculus Rift, Oculus Quest, Windows Mixed Reality, Valve Index, PlayStation VR
CategoryGame DevelopmentAR VR
Founded20172016

Identical on both: starting price (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 Flax Engine

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

Only in Tilt Brush

  • 3D painting
  • Dynamic brushes
  • Environment selection
  • Animation
  • Google Poly
  • Sketchfab
  • YouTube VR
  • Vr 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 Tilt Brush
  • Multi-platform deployment from one editornot Tilt Brush
  • Prototyping with the bundled Flax Samples projectsnot Tilt Brush

Tilt Brush

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

Tilt Brush

  • No longer actively developed by Google since January 2021; future updates and support are not guaranteed
  • Limited editing capabilities with no layers system and no 3D brushes for precise refinement
  • Not designed for professional branding or marketing work; better suited for creative expression than practical design
  • Tool limitations make it difficult to move, cut, or rearrange grouped elements after creation
  • VR hardware costs are high relative to software cost, and can cause motion sickness in some users

Pricing, plan by plan

Flax Engine

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

Tilt Brush

Free
  • Google Tilt Brush$19.99/one-time
    • VR painting and creative tools
    • Available on VR app stores
  • Open Brush (open-source)Free
    • Free open-source version
    • Available on Steam and Meta Quest

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 Tilt Brush if

  • You need 3d painting.
  • You want to start without paying.
  • You work on HTC Vive, Oculus Rift, Oculus Quest, Windows Mixed Reality, Valve Index, PlayStation VR.
  • You also want dynamic brushes.
Tilt Brush review

Questions people ask

Is Flax Engine or Tilt Brush better?
Neither clearly leads. Flax Engine starts at Free and Tilt Brush at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flax Engine or Tilt Brush?
Flax Engine starts at Free and Tilt Brush at Free.
Does Flax Engine or Tilt Brush run on more platforms?
Flax Engine runs on Windows, Linux, Playstation, Xbox. Tilt Brush runs on HTC Vive, Oculus Rift, Oculus Quest, Windows Mixed Reality, Valve Index, PlayStation VR.
Can I use Flax Engine for free?
Both have a free tier, so you can try either at no cost before committing.
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 Tilt Brush is typically brought in for.
What can Flax Engine do that Tilt Brush cannot?
Flax Engine covers 3D graphics rendering, Visual editor, C# scripting, Physics engine. Tilt Brush covers 3D painting, Dynamic brushes, Environment selection, Animation.

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
Tilt Brush: Is Tilt Brush still available to use?

Yes. Although Google ended active development in January 2021, Tilt Brush remains available on VR app stores and continues to function. Google also open-sourced the code, enabling community-maintained alternatives like Open Brush to provide free versions for PC VR and Meta Quest.

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
Tilt Brush: Is there a free version of Tilt Brush?

The official Google Tilt Brush costs $19.99. However, Open Brush (the open-source community version) is completely free and available for PC VR via Steam and on Oculus Quest.

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
Tilt Brush: What VR headsets does Tilt Brush support?

Tilt Brush works on HTC Vive, Oculus Rift, Oculus Quest, Windows Mixed Reality, Valve Index, and PlayStation VR. The open-source Open Brush version also supports PC VR.

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
Tilt Brush: Can I export my Tilt Brush creations?

Yes. Tilt Brush creations can be exported as room-scale VR pieces or animated GIFs to share with others. The app does not support direct export to 3D model formats like OBJ or FBX.

Source
Tilt Brush: Is Tilt Brush good for professional 3D design work?

Tilt Brush is primarily a creative expression and painting tool rather than a professional 3D design tool. It lacks features like layers, editable 3D brushes, and precise refinement controls needed for professional workflows. For professional VR sculpting, Adobe Medium or Quill are better choices.

Source
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