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Flax Engine vs Kaiju Engine

Flax Engine

flaxengine.com

Kaiju Engine

kaijuengine.com

Side by side

FigureFlax EngineKaiju Engine
Price fromFree—
Free planYes—
Free trial——
Open source——
WebYes—
WindowsYesYes
macOSYesYes
LinuxYesYes
iOSYes—
AndroidYesYes
Plans published20
Spec score · Game Engine Software8.9 (#10)7.0 (#90)
ProductFlax Engine is a modern 3D game engine written in C++ and C#.Kaiju Engine is an open source game engine and editor written in Go and backed by Vulkan.
RenderingThe feature set includes realtime global illumination, reflections with custom software ray tracing, and GPU lightmap baking.The engine provides native 3D rendering, scenes, lighting, and materials, and supports switching the editor to 2D mode for sprite-based projects.
SupportThe feature page promises direct communication and help from engine developers, and the site provides a contact form.The documentation points users to the Kaiju Discord server for help getting started.

Plans

Flax Engine

  • Flax Engine licenseFree
  • Custom licensingPriced on request

Flax Engine pricing →

Kaiju Engine

No plans published.

Kaiju Engine pricing →

In their own words

Flax Engine

Flax Engine is a 3D game engine written in C++ and C#, with visual scripting and full Editor source code available. It supports C++, C#, and visual scripting, with hot-reloading for both programming languages in the Editor. Rendering features include real-time global illumination, reflections using custom software ray tracing, and GPU lightmap baking. World-building tools cover terrain, foliage, fog, nested prefabs, level streaming, and large-world 64-bit coordinates. Multiplayer projects can use low- and high-level networking APIs. Its Online system supports services such as Steam, Xbox Live, and PlayStation Network for profiles, friends, achievements, presence, and cloud saves. Supported targets include Windows, Linux, Android, iOS, macOS, web, PlayStation 4 and 5, Xbox One and Series, and Nintendo Switch. Web support is experimental and lacks C# scripting, video playback, and some other engine features. NDA-protected platform support is excluded from the public repository. The engine is free for non-commercial or educational use; commercial releases pay a 4% royalty on earnings exceeding $250,000 per calendar quarter.

Visit flaxengine.com

Kaiju Engine

Kaiju Engine has no write-up on Specifiction yet; its figures are above.

Visit kaijuengine.com