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Game Development · head to head

Flax Engine vs Stencyl

Flax Engine logo

Flax Engine

Game Development

Modern 3D game engine with visual editor

From
Free
Rated
-
Full reviewWebsite
Stencyl logo

Stencyl

Game Development

Create games with visual programming

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; Stencyl the free Starter tier can publish to the web only
  • They diverge on capability: Flax Engine covers 3D graphics rendering, Stencyl covers Visual block programming.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Flax Engine and Stencyl actually diverge.

Attributes where Flax Engine and Stencyl differ
AttributeFlax EngineStencyl
Pricing modelfreesubscription
PlatformsWindows, Linux, Playstation, XboxWindows, Macos, Linux, Ios, Android, Flash
Founded20172011

Identical on both: starting price (Free), free tier (Yes), 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
  • Audio system
  • Particle effects
  • Skeletal animation
  • Material system
  • Lighting system

Only in Stencyl

  • Visual block programming
  • Drag-and-drop interface
  • Sprite animation
  • Sound and music
  • Tilemap editor
  • Actor system
  • Haxe support
  • GitHub

Both cover

  • Physics engine
  • Local deployment
  • 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 Stencyl
  • Multi-platform deployment from one editornot Stencyl
  • Prototyping with the bundled Flax Samples projectsnot Stencyl

Stencyl

  • Game development for independent creatorsnot Flax Engine
  • Cross-platform game publishing (iOS, Android, Web, Desktop)not Flax Engine
  • Indie game studio platformnot 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

Stencyl

  • The free Starter tier can publish to the web only
  • Desktop publishing requires the Indie plan at $99 a year
  • iOS and Android publishing require the Studio plan at $199 a year
  • Licences are annual, so continuing to publish means continuing to pay

Pricing, plan by plan

Flax Engine

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

Stencyl

Free
  • Starter (Free)Free
    • Publish to Web only
    • Includes Stencyl branding splash screen
  • Indie$99/year
    • Publish to Web and Desktop (Windows, Mac, Linux)
    • Early access to latest releases
    • No watermarks or forced Stencyl branding
  • Studio (Most Popular)$199/year
    • Publish to iOS, Android, Web and Desktop
    • Early access to latest releases
    • No watermarks or forced Stencyl branding

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 Stencyl if

  • You need visual block programming.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Ios, Android, Flash.
  • You also want drag-and-drop interface.
Stencyl review

Questions people ask

Is Flax Engine or Stencyl better?
Neither clearly leads. Flax Engine starts at Free and Stencyl at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flax Engine or Stencyl?
Flax Engine starts at Free and Stencyl at Free.
Does Flax Engine or Stencyl run on more platforms?
Flax Engine runs on Windows, Linux, Playstation, Xbox. Stencyl runs on Windows, Macos, Linux, Ios, Android, Flash.
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 Stencyl is typically brought in for.
What can Flax Engine do that Stencyl cannot?
Flax Engine covers 3D graphics rendering, Visual editor, C# scripting, Audio system. Stencyl covers Visual block programming, Drag-and-drop interface, Sprite animation, Sound and music. Both handle Physics engine, Local deployment, 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
Stencyl: How much does Stencyl cost?

Stencyl offers a free Starter plan, Indie at $99/year, and Studio at $199/year. All platforms include annual subscriptions with no royalties or per-game fees.

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
Stencyl: What platforms can I publish to with each Stencyl plan?

Starter publishes to Web only. Indie adds Desktop (Windows, Mac, Linux). Studio includes all Indie platforms plus iOS and Android mobile.

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
Stencyl: Does Stencyl offer a money-back guarantee?

Yes, both Indie and Studio plans include a 30-day money-back guarantee from the date of purchase, provided you have not published any games.

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
Stencyl: Can I use Stencyl after my subscription expires?

Yes, your games will continue to work after your subscription expires. However, you cannot publish new games or updates without an active subscription.

Source
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