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Game Development · head to head

Defold vs Unreal Engine

Defold logo

Defold

Game Development

The game engine for the creators of King

From
Free
Rated
-
Full reviewWebsite
Unreal Engine logo

Unreal Engine

Entertainment

The world's most open and advanced real-time 3D creation tool

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Defold the Defold License requires you to include the Defold license and copyright notice in any work you create with the engine; Unreal Engine 5% royalty triggered on any project exceeding $1 million in gross revenue across all revenue sources
  • They diverge on capability: Defold covers Lua scripting, Unreal Engine covers Real-time ray tracing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Defold and Unreal Engine actually diverge.

Attributes where Defold and Unreal Engine differ
AttributeDefoldUnreal Engine
Pricing modelfreeUnknown
PlatformsWindows, Macos, Linux, Ios, Android, WebPC, macOS, Linux, PlayStation, Xbox, Nintendo Switch, iOS, Android, VR, AR
CategoryGame DevelopmentEntertainment
Founded20051991

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 Defold

  • Lua scripting
  • Physics engine
  • Sprite system
  • Particle effects
  • Sound management
  • Collection editor
  • Mobile optimization
  • Lightweight

Only in Unreal Engine

  • Real-time ray tracing
  • Nanite geometry
  • Lumen global illumination
  • Blueprint visual scripting
  • C++ programming
  • World composition
  • Animation systems
  • Audio engine

Both cover

  • GitHub
  • Local deployment
  • Windows support

What people use each for

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

Defold

  • Building 2D games for mobile, desktop, web and console from a single projectnot Unreal Engine
  • Shipping small-footprint HTML5 gamesnot Unreal Engine
  • Teams wanting a free engine with no revenue share on gamesnot Unreal Engine

Unreal Engine

  • AAA game developmentnot Defold
  • Indie game creationnot Defold
  • Architectural visualizationnot Defold
  • Film and TV productionnot Defold
  • VR/AR experiencesnot Defold

Where each one falls short

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

Defold

  • The Defold License requires you to include the Defold license and copyright notice in any work you create with the engine
  • The licence forbids commercialising original or modified versions of the Defold editor or engine itself
  • Significant changes made to the Defold source must be documented under the licence terms

Unreal Engine

  • 5% royalty triggered on any project exceeding $1 million in gross revenue across all revenue sources
  • Smaller mobile game ecosystem compared to Unity, with fewer optimized mobile libraries and live-ops services

Pricing, plan by plan

Defold

Free
  • FreeFree
    • Full editor
    • Lua scripting
    • Physics engine

Unreal Engine

Free
  • Game DevelopmentFree
    • Nanite geometry
    • Lumen global illumination
    • Blueprint visual scripting
  • Non-Game Commercial$1850/year
    • No royalties
    • Enterprise features

Which should you pick?

Choose Defold if

  • You need lua scripting.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Ios, Android, Web.
  • You also want physics engine.
Defold review

Choose Unreal Engine if

  • You need real-time ray tracing.
  • You want to start without paying.
  • You work on PC, macOS, Linux, PlayStation, Xbox, Nintendo Switch, iOS, Android, VR, AR.
  • You also want nanite geometry.
Unreal Engine review

Questions people ask

Is Defold or Unreal Engine better?
Neither clearly leads. Defold starts at Free and Unreal Engine at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Defold or Unreal Engine?
Defold starts at Free and Unreal Engine at Free.
Does Defold or Unreal Engine run on more platforms?
Defold runs on Windows, Macos, Linux, Ios, Android, Web. Unreal Engine runs on PC, macOS, Linux, PlayStation, Xbox, Nintendo Switch, iOS, Android, VR, AR.
Can I use Defold for free?
Both have a free tier, so you can try either at no cost before committing.
What is Defold best used for?
Defold is most often used for building 2d games for mobile, desktop, web and console from a single project, shipping small-footprint html5 games, teams wanting a free engine with no revenue share on games. Of those, building 2d games for mobile, desktop, web and console from a single project and shipping small-footprint html5 games are not what Unreal Engine is typically brought in for.
What can Defold do that Unreal Engine cannot?
Defold covers Lua scripting, Physics engine, Sprite system, Particle effects. Unreal Engine covers Real-time ray tracing, Nanite geometry, Lumen global illumination, Blueprint visual scripting. Both handle GitHub, Local deployment, Windows support.

Answered from the vendors’ own pages

Defold: How much does Defold cost?

Defold is completely free with no up-front cost, no licensing cost, no royalties, and no runtime fees. The game engine is free forever, supported by the Defold Foundation with source code available under a developer-friendly license.

Source
Unreal Engine: What is Unreal Engine's royalty structure?

Unreal Engine is free upfront with a 5% royalty on gross revenue worldwide after a project exceeds $1 million in lifetime gross revenue. This includes in-app purchases, advertising, and direct sales but excludes indirect revenue.

Source
Defold: Is Defold free to use commercially?

Yes, Defold is free forever with no royalties or revenue sharing required. Developers can create and monetize commercial games without any fees to Defold.

Source
Unreal Engine: What platforms can Unreal Engine target?

Unreal Engine supports PC, VR, AR, gaming consoles, and mobile devices. The royalty fee applies across all platforms.

Source
Unreal Engine: What are Unreal Engine's graphics capabilities?

Unreal Engine 5 features Nanite virtualized geometry and Lumen global illumination, enabling photorealistic AAA workflows. Nanite replaces traditional LOD systems with 128-triangle clusters and software rasterization for superior visual fidelity.

Source
Unreal Engine: Do non-game developers pay royalties?

No. Non-game commercial teams pay $1,850 per seat per year instead of royalties. This covers enterprise use cases outside traditional game development.

Source
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