Side by side
A2Engine vs Kaiju Engine
Both stand on game engine software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan
A2Engine provides a focused teaching-oriented foundation for exploring 2D engine concepts with Lua, C++, Box2D, and SDL. Its examples and course context support learning, while hidden source limits inspection of the implementation.
Visit A2Engine Free plan AndroidLinuxMac+1
Kaiju Engine provides a broad set of rendering, physics, animation, interface, and audio tools at no charge. Its development status and build requirements matter for teams seeking production-ready software.
Visit Kaiju EngineThe facts
| A2Engine | Kaiju Engine | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Not published | Android, Linux, Mac, Windows |
| Lowest paid plan | Not published | Not published |
| Plans published | None | None |
| Maker | Not published | Not published |
| Website | a2engine.org | kaijuengine.com |
| On game engine software | #81 of 92 | #77 of 92 |
A2Engine: what it does well
- Free to download and use
- Lua lifecycle scripting for Actors
- Built-in Box2D physics and particles
- Three open-source sample games
- Commercial use described as allowed
What to know first
- Source code remains hidden
- Designed primarily for education
- Documentation is hosted in a Google document
Kaiju Engine: what it does well
- Free and open source
- Supports 2D and 3D projects
- Visual editor or Go workflow
- Portable editor needs no installation
- Live GLSL shader updates
What to know first
- Not production ready
- Under heavy development
- Source builds require Vulkan SDK
- Code-only workflow needs Go 1.22+ and C compiler
Alternatives to A2Engine Alternatives to Kaiju Engine The whole list