Open Source Unity Alternatives

Alternatives list

1. 

   

   pyrite64

    4 likes

   Pyrite64 is a visual editor + runtime-engine to create 3D games that can run on a real N64 console or accurate emulators like Mupen64Plus.

   Cost / License

   • Free
   • Open Source (MIT)

   Origin

   • Germany
   • EU

   Since

   • Since 2026

   Platforms

   • Windows
   • Linux

   • Germany
   • EU

   

   

   

   +1

   

   More about pyrite64  

   

   Good alternative?Is pyrite64 a good alternative to Unity?

    
2. 

   

   Castle Game Engine

    20 likes

   An open-source 3D/2D game engine for ObjectPascal.

   Cost / License

   • Free
   • Open Source

   Application type

   • Game Development

   Since

   • Since 2015

   Platforms

   • Windows
   • Mac
   • Linux
   • BSD

   

   

   

   +2

   

   More about Castle Game Engine  

   

   Good alternative?Is Castle Game Engine a good alternative to Unity?

    

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   1comment

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   Castle Game Engine vs Unity Comments

   Comment by Mano · Nov 30, 2021

   Being written in Pascal makes it very easy to port to different OS's and architectures. The problem is that Pascal is an "almost dead" language, not because it's bad, but because of the small adoption.

   1 of 1 comments

   

   

   • Castle Game Engine is Free and Open SourceUnity is Freemium and Proprietary
4. 

   

   Floptle

    Like

   Floptle: a lightweight rust-based game engine focused on fast and easy implementation of multiplayer, and making powerful gamedev tools accessible like raymarched terrain, shader editing, pathfinding, and more.

   Cost / License

   • Free
   • Open Source (Apache-2.0)

   Application type

   • Game Development

   Since

   • New

   Platforms

   • Windows
   • Mac
   • Linux
   • Debian
   • Arch Linux

   

   

   

   +4

   

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   Good alternative?Is Floptle a good alternative to Unity?

    
5. 

   

   Blend4Web

    12 likes

   Blend4Web is an Open Source tool for interactive 3D visualization on the Internet. It provides Free and Commercial licenses.

   27 Blend4Web alternatives

   Cost / License

   • Free
   • Open Source

   Origin

   • United States

   Since

   • Since 2016

   Alerts

   • Discontinued

   Platforms

   • Windows
   • Mac
   • Linux
   • Online

   • United States

   

   

   

   +9

   

   More about Blend4Web  

   

   Good alternative?Is Blend4Web a good alternative to Unity?

    

   |

   1comment

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   Discontinued

   This product is no longer developed. The developers recommend waiting for a completely new environment called Studio (https://www.blend4web.com/en/community/article/414/).

   Blend4Web vs Unity Comments

   Negative comment by Guest · Jan 24, 2017

   Blend4Web is not a game engine.

   1 of 1 comments

   

   

   • Blend4Web is Free and Open SourceUnity is Freemium and Proprietary
6. 

   

   Fyrox Game Engine

    2 likes

   A feature-rich, production-ready, general purpose 2D/3D game engine written in Rust with a scene editor. Formerly known as rg3d.

   Cost / License

   • Free
   • Open Source (MIT)

   Origin

   • International

   Since

   • Since 2023

   Platforms

   • Windows
   • Mac
   • Linux

   • Global

   

   More about Fyrox Game Engine  

   

   Good alternative?Is Fyrox Game Engine a good alternative to Unity?

    
8. 

   

   HARFANG 3D

    13 likes

   HARFANG®3D is a cross-platform & multi-language solution to integrate with embedded systems, existing environments & combining features to meet the industrial standards of 3D imaging.

   Cost / License

   • Free Personal
   • Open Source (LGPL-3.0)

   Application type

   • Game Development

   Origin

   • France
   • EU

   Since

   • Since 2019

   Platforms

   • Windows
   • Linux
   • Online

   • France
   • EU

   

   

   

   +9

   

   More about HARFANG 3D  

   

   Good alternative?Is HARFANG 3D a good alternative to Unity?

    
9. 

   

   Blitz3D

    20 likes

   Create 2D and 3D Games for Windows.

   If you've been yearning to create games but have been frustrated by the complexity of programming languages such as C++ or Java, you've come to the right place!

   Blitz3D provides a simple yet powerful environment for game creation - s.

   86 Blitz3D alternatives

   Cost / License

   • Free
   • Open Source

   Application type

   • Game Development

   Origin

   • New Zealand

   Since

   • Since 2011

   Platforms

   • Windows

   • New Zealand

   

   More about Blitz3D  

   

   Good alternative?Is Blitz3D a good alternative to Unity?

    
10. 

    

    Pygame

     25 likes

    Pygame is a set of Python modules designed for writing video games. Pygame adds functionality on top of the excellent SDL library. This allows you to create fully featured games and multimedia programs in the python language.

    73 Pygame alternatives

    Cost / License

    • Free
    • Open Source

    Origin

    • International

    Since

    • Since 2011

    Platforms

    • Windows
    • Mac
    • Linux
    • Android
    • iPhone
    • iPad
    • Android Tablet
    • HP webOS
    • AmigaOS

    • Global

    

    More about Pygame  

    

    Good alternative?Is Pygame a good alternative to Unity?

     

    |

    1comment

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    Pygame vs Unity Comments

    Positive comment by oink1222 · Feb 1, 2023

    pygame is 2d only unity is 2d and 3d

    1 of 1 comments

    

    

    • Pygame is Free and Open SourceUnity is Freemium and Proprietary
11. 

    

    HaxeFlixel

     5 likes

    HaxeFlixel is a 2D Game Engine that lets you create cross-platform games easier with free, open source technology!

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    • Game Development

    Origin

    • Germany
    • EU

    Since

    • Since 2016

    Platforms

    • Windows
    • Mac
    • Linux

    • Germany
    • EU

    

    

    

    More about HaxeFlixel  

    

    Good alternative?Is HaxeFlixel a good alternative to Unity?

     
12. 

    

    ENIGMA - LateralGM

     32 likes

    ENIGMA, the Extensible Non-Interpreted Game Maker Augmentation, is an open source cross-platform game development environment derived from that of the popular software GameMaker Legacy.

    Cost / License

    • Free
    • Open Source

    Application type

    • Game Development

    Origin

    • International

    Since

    • Since 2013

    Platforms

    • Windows
    • Mac
    • Linux
    • BSD

    • Global

    

    

    

    +1

    

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13. 

    

    ezEngine

     4 likes

    ezEngine is a free, open source game engine written in C++. Its philosophy is to be modular and flexible, such that it can be adapted to many different use cases. EZ utilizes a plugin system to integrate features such as FMOD or Jolt Physics.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    • Game Development

    Origin

    • Switzerland

    Since

    • Since 2024

    Platforms

    • Windows

    • Switzerland

    

    More about ezEngine  

    

    Good alternative?Is ezEngine a good alternative to Unity?

     
14. 

    

    Evergine

     8 likes

    The Graphics Development Engine for Business and Industry. Build high-quality 3D solutions and deploy to any platform.

    Cost / License

    • Free Personal
    • Open Source

    Application type

    • Game Development

    Origin

    • Spain
    • EU

    Since

    • Since 2015

    Platforms

    • Windows
    • Mac
    • Linux

    • Spain
    • EU

    

    

    

    More about Evergine  

    

    Good alternative?Is Evergine a good alternative to Unity?