Open Source Unity Alternatives

The best open source alternative to Unity is Godot Engine. If that doesn't suit you, our users have ranked more than 100 alternatives to Unity and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Unity are GDevelop, Candlestick, Stride Game Engine and GABE.

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Most Unity alternatives are Game Development Tools, but you can also narrow the list to Role-playing Games or IDEs. Other popular filters are 3D Game Engine, Linux, Open Source, Online and Free. You can also filter for EU-based alternatives if you prefer software from the European Union.
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Alternatives
Unity alternatives page was last updated

Alternatives list

  1. Lobster icon
     7 likes

    Lobster is a game programming language. It was developed to make it easier for people who are already programmers to prototype and make games.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2013

    Platforms

    • Windows
    • Linux
    Good alternative?
     
  2. WorldForge icon
     2 likes

    The WorldForge project is the original open-source MMORPG project, dating back to 1997.

    49 WorldForge alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2014

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    • Self-Hosted
    Good alternative?
     
  3. Reality Factory 2 is a next-generation game authoring suite. It combines a flexible, fully scripted game development environment powered by Python with the Ogre3D engine, and supports all major desktop operating systems.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2012

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  4. Bitmelo icon
     1 like

    Bitmelo is a game editor and engine for making small pixel art games. The editor has everything you need to develop a game in one convenient location. You can code, draw tiles and tilemaps, design sound effects, view the documentation, and playtest your game, all without having...

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2019

    Platforms

    • Online
    Good alternative?
     
  5. melonJS icon
     2 likes

    melonJS is an open source HTML5 game engine that empowers developers and designers to focus on content.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2017

    Platforms

    • Self-Hosted
    • JavaScript
    Good alternative?
     
  6. Open RPG Maker icon
     11 likes

    Open RPG Maker is a free and open source clone of features from the RPG Maker series (i.e. rpgmaker200, rpgmaker2003, rpgmakerxp), as well as many other features. All of the data files are in XML format and are easily editable with any text editor.

    86 Open RPG Maker alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2013

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  7. AresEd icon
     1 like

    AresEd is a high-level and fully featured 3D game creation suite. It is Free and Open Source. When it is finished you will be able to make full 3D games without writing any code (although a fallback to the python scripting language will be provided).

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2013

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux
    Good alternative?
     
  8. Amulet icon
     3 likes

    Amulet is a free Lua-based audio/visual toolkit suitable for small games and experimentation. It runs on Windows, Mac, Linux, HTML5 and iOS.

    79 Amulet alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2017

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  9. Limon Engine icon
     1 like

    Limon is a multi platform 3D game engine mainly focusing on first person games. Focus of its development is ease of use and ease of study. It has builtin editor for maps, animations and GUIs.

    Cost / License

    Since

    • Since 2018

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  10. MAGE icon
     2 likes

    MAGE stands for MAKE A GAME EXPERIENCE

    The goal for MAGE is to make it as easy as possible for people to create their own 3D universes, adventures and stories. PLAY WHILE YOU CREATE!.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2019

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  11. Verge 3 icon
     2 likes

    VERGE is a Game Creation Engine: A progam that exists to help you make games in 16bits like super nintendo.

    Cost / License

    • Free
    • Open Source

    Since

    • Since 2017

    Platforms

    • Windows
    • Mac
    Good alternative?
     
  12. Boardgame.io icon
     4 likes

    Open-Source Game Engine for Board Games / Card Games / Tabletop Games. Write simple functions that describe how the game state changes when a particular move is made. This is automatically converted into a playable game complete with online multiplayer features, all without...

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2021

    Platforms

    • Self-Hosted
    Good alternative?
     
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