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Game Development · head to head

Fyrox vs SolveSpace

Fyrox logo

Fyrox

Game Development

Feature-rich 3D game engine written in Rust

From
Free
Rated
-
Full reviewWebsite
S

SolveSpace

CAD

Open source parametric CAD with a constraint solver in a few megabytes

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Fyrox no pricing published; product is open-source and free; SolveSpace the in-house geometry kernel fails on complex boolean operations and fillets, and the failure is sometimes silent bad geometry rather than an error message, so models must be checked before export or manufacture.
  • They diverge on capability: Fyrox covers Scene editor, SolveSpace covers Constraint solver.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Fyrox and SolveSpace actually diverge.

Attributes where Fyrox and SolveSpace differ
AttributeFyroxSolveSpace
Pricing modelfreeOpen source, no licence fee
PlatformsWindows, Macos, Linux, WebglWindows, macOS, Linux
CategoryGame DevelopmentCAD
Founded2019Unknown

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 Fyrox

  • Scene editor
  • 3D/2D rendering
  • Physics (Rapier)
  • Animation system
  • Sound engine
  • UI framework
  • Navmesh
  • Particle systems

Only in SolveSpace

  • Constraint solver
  • Solid modelling
  • Assemblies
  • Export formats
  • Cross-platform
  • Small footprint

What people use each for

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

Fyrox

  • 3D game developmentnot SolveSpace
  • 2D gamesnot SolveSpace
  • Simulationnot SolveSpace
  • Prototypingnot SolveSpace

SolveSpace

  • Designing 3D printed parts on a machine that cannot run mainstream CADnot Fyrox
  • Teaching constraint-based parametric modelling without buying licences for a classroomnot Fyrox
  • Checking that a mechanical linkage moves as intended before cutting metalnot Fyrox
  • Producing dimensionally accurate STEP or STL output from a small open source toolchainnot Fyrox

Where each one falls short

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

Fyrox

  • No pricing published; product is open-source and free

SolveSpace

  • The in-house geometry kernel fails on complex boolean operations and fillets, and the failure is sometimes silent bad geometry rather than an error message, so models must be checked before export or manufacture.
  • There is no proper drawing and dimensioning workflow, so manufacturing documentation has to be produced in another application.
  • Development is volunteer-led and intermittent; long gaps between releases are normal and there is no support contract available at any price.
  • Assembly-level import of external CAD is very limited, so it does not fit a supply chain that exchanges native or assembly-level models with suppliers.
  • The interface follows its own conventions rather than mainstream CAD ones, so existing SolidWorks or Fusion users spend time unlearning habits for a tool with a lower ceiling.

Pricing, plan by plan

Fyrox

Free
  • Open SourceFree
    • Full engine access
    • Scene editor
    • Physics integration

SolveSpace

Free
  • SolveSpaceFree
    • Full application under the GPL
    • No seat limit
    • Windows, macOS and Linux builds

Which should you pick?

Choose Fyrox if

  • You need scene editor.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Webgl.
  • You also want 3d/2d rendering.
Fyrox review

Choose SolveSpace if

  • You need constraint solver.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want solid modelling.
SolveSpace review

Questions people ask

Is Fyrox or SolveSpace better?
Neither clearly leads. Fyrox starts at Free and SolveSpace at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fyrox or SolveSpace?
Fyrox starts at Free and SolveSpace at Free.
Does Fyrox or SolveSpace run on more platforms?
Fyrox runs on Windows, Macos, Linux, Webgl. SolveSpace runs on Windows, macOS, Linux.
Can I use Fyrox for free?
Both have a free tier, so you can try either at no cost before committing.
What is Fyrox best used for?
Fyrox is most often used for 3d game development, 2d games, simulation, prototyping. Of those, 3d game development and 2d games are not what SolveSpace is typically brought in for.
What can Fyrox do that SolveSpace cannot?
Fyrox covers Scene editor, 3D/2D rendering, Physics (Rapier), Animation system. SolveSpace covers Constraint solver, Solid modelling, Assemblies, Export formats.

Answered from the vendors’ own pages

Fyrox: How much does Fyrox Engine cost?

Fyrox is a free, open-source game engine built in Rust. There are no pricing tiers, subscription fees, or commercial licensing costs. The engine is available to download and use at no cost.

Source
SolveSpace: Is it really free for commercial work?

Yes. It is released under the GPL with no licence fee and no seat limit. Support is community only.

SolveSpace: Can it replace Fusion 360 or SolidWorks?

No. It handles parts and simple assemblies well. Complex geometry, drawings and supply chain interoperability are outside its range.

SolveSpace: What hardware does it need?

Very little. It runs on old laptops and small Linux machines where mainstream CAD will not start.

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