Open Source Unity Alternatives for Windows

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

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Unity alternatives are mainly Game Development Tools but may also be Board Games or 3D Modelers.  Other popular filters includes Windows + Open Source. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Unity.
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Real-time 3D engine enabling collaboration to create immersive, interactive experiences on Windows, Mac, and Linux, with extensive platform support.

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Unity alternatives page was last updated Dec 7, 2024
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  1. Godot Engine icon
    Godot Engine icon

    Godot Engine

     531 likes
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    Godot Engine is a feature-packed, cross-platform game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel.

    172 Godot Engine alternatives
    Godot Engine screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Epic Games Store
    • Flathub
    • F-Droid
    • Haiku
    • Steam
    • FreeBSD
    • Flatpak
    Fully-dedicated 2D engine
    XR (VR and AR) support
    +6
    Gorgeous 3D graphics

    Properties

    1.  Lightweight

    Features

    1.  3D Game Engine
    2.  2D Game Engine
    3.  Cross-Platform
    4.  GdScript
    5.  Portable
    6.  Simple installation
    7.  Built-in 3D model viewer
    8.  Intuitive Nodes
    9.  Multiple languages
    10.  Keyframe Animation
    11.  Works Offline
    12.  Community-based
    Godot Engine iconUnity Icon

    Godot Engine VS Unity

    Is Godot Engine a good alternative to Unity?
     
    Comments about Godot Engine as an Alternative to Unity
     
       
    Comment summary: Godot Engine is praised for being free, open-source, and easy to use, making it more accessible, especially for beginners. It is appreciated for its lightweight nature, support for multiple platforms, and strong community involvement. Conversely, users point out it lacks advanced features in 3D compared to Unity and has issues with code editors for some languages. The upcoming development promises significant improvements, possibly narrowing the gap with Unity.
    kurifoxen

    Its sopen source with no fees

    Top positive comment •Sep 21, 2023
    2
    maurosoft391

    hard to use and awful user interface

    Top negative comment •Aug 27, 2022
    -2
    carotte

    Godot is free, both as in freedom and free of charge. Unity is neither.

    Positive comment •Oct 6, 2024
    0
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    3 of 20 comments
    Unity Icon
    Godot Engine icon

    • Almost everyone thinks Godot Engine is a great Unity alternative.

    • Godot Engine is the most popular Web-based, Windows, Android & Mac alternative to Unity.

    • Godot Engine is the most popular Open Source & free alternative to Unity.

    • Godot Engine is Free and Open SourceUnity is Freemium and Proprietary
    • Godot Engine is LightweightUnity is not according to our users
  2. GDevelop icon
    GDevelop icon

    GDevelop

     186 likes
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    GDevelop is an open-source game making software designed to be used by everyone. Any kind of 2D games can be created with it and no programming skills are required to get started. Logic of games are made using visual events.

    111 GDevelop alternatives
    The new editor interface, which now supports 3D editing.

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    GDevelop can now create fully 3D games.
    The Asset Store has hundreds of thousands of free and paid assets.
    +4
    Events to build the logic of a game

    Properties

    1.  Lightweight

    Features

    1.  No Coding Required
    2.  Visual Programming
    3.  Multiplatform
    4.  Support for HTML5
    5.  Multiplatform Export
    6.  Material design
    7.  Event management
    8.  Extensible by Plugins/Extensions
    9.  Works Offline
    10.  Ad-free
    11.  Support for scripting
    12.  Multiple languages
    GDevelop iconUnity Icon

    GDevelop VS Unity

    Is GDevelop a good alternative to Unity?
     
    Comments about GDevelop as an Alternative to Unity
     
       
    Guest

    GDevelop is a 2D game engine based in visual programming and very limited in that aspect.

    Negative comment •Mar 9, 2018
    6
    kayl

    GDevelop --> 2D Unity --> 3D/2D

    Negative comment •Nov 2, 2015
    1
    Douglas Joseph Leão Sales

    GDevelop is more like a Construct alternative than an Unity one.

    Negative comment •Jul 17, 2020
    0
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    3 of 4 comments
    Unity Icon
    GDevelop icon

    • Most users think GDevelop is a great Unity alternative.

    • GDevelop is the most popular iPhone, iPad & Android Tablet alternative to Unity.

    • GDevelop is Freemium and Open SourceUnity is Freemium and Proprietary
    • GDevelop is LightweightUnity is not according to our users
  4. Stride Game Engine icon
    Stride Game Engine icon

    Stride Game Engine

     32 likes
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    Stride (formerly Xenko) is an open-source C# game engine designed for the future of gaming. It comes with a full toolchain and is especially well suited to create realistic games but allows you much more!.

    60 Stride Game Engine alternatives
    Overview

    License model

    • Free • Open Source

    Application type

    Platforms

    • Windows

    Stride Game Engine Features

    1.  Works Offline
    2.  Support for scripting
    3.  Ad-free
    Stride Game Engine screenshot 1
    MultPlataform
    +4
    Assets
    Stride Game Engine iconUnity Icon

    Stride Game Engine VS Unity

    Is Stride Game Engine a good alternative to Unity?
     
    Comments about Stride Game Engine as an Alternative to Unity
     
    tvgoing1

    It offers C# and better options for 3D artist.

    Positive comment •Dec 8, 2016
    2
    Guest

    It's more open, I can look under the hood ans see how things work. It's C# all the way down and performance is still great.

    Positive comment •Sep 16, 2023
    0
    Unity Icon
    Stride Game Engine icon

    • Almost everyone thinks Stride Game Engine is a great Unity alternative.

    • Stride Game Engine is Free and Open SourceUnity is Freemium and Proprietary
  5. Redot Engine icon
    Redot Engine icon

    Redot Engine

     10 likes
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    Redot Engine is a feature-packed, cross-platform fork of the Godot game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel.

    56 Redot Engine alternatives
    Redot Engine screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Redot Engine screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  Cross-Platform
    3.  GdScript
    4.  3D Game Engine
    5.  2D Game Engine
    6.  Support for scripting
    7.  Portable
    8.  Works Offline
    9.  Dark Mode
    10.  No registration required
    11.  Keyframe Animation
    12.  Multiplayer
    Redot Engine iconUnity Icon

    Redot Engine VS Unity

    Is Redot Engine a good alternative to Unity?
     
  6. Bevy Game Engine icon
    Bevy Game Engine icon

    Bevy Game Engine

     18 likes
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    A refreshingly simple data-driven game engine built in Rust. Free and Open Source Forever!

    132 Bevy Game Engine alternatives
    Bevy Game Engine screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux

    Bevy Game Engine Features

    1.  3D Game Engine
    2.  Rust
    3.  2D Game Engine
    4.  Scene System
    Bevy Game Engine screenshot 1
    Bevy Game Engine iconUnity Icon

    Bevy Game Engine VS Unity

    Is Bevy Game Engine a good alternative to Unity?
     
  7. microStudio icon
    microStudio icon

    microStudio

     16 likes
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    microStudio is a free game engine online. Create games, learn programming, play, share, prototype and jam!.

    168 microStudio alternatives
    microStudio screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Raspberry Pi
    microStudio screenshot 1
    microStudio screenshot 2
    +2
    microStudio screenshot 3

    microStudio Features

    1.  Real time collaboration
    2.  Embedded tutorials
    3.  Multiple export options
    4.  Ad-free
    5.  Works Offline
    microStudio iconUnity Icon

    microStudio VS Unity

    Is microStudio a good alternative to Unity?
     
  9. ct.js icon
    ct.js icon

    ct.js

     24 likes
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    ct.js is a 2D game editor (desktop app) based on web technologies. It aims to be an extensible yet simple game-making tool, accessible for both newbies and experienced game developers.

    45 ct.js alternatives
    Room editor

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Code editor
    Code editor
    +4
    Particle systems

    Properties

    1.  Lightweight

    Features

    1.  2D Game Engine
    2.  Support for Javascript
    3.  2D Game Creation
    4.  Export to HTML
    5.  Ad-free
    6.  Works Offline
    7.  No registration required
    8.  Support for HTML5
    9.  Modular System
    ct.js iconUnity Icon

    ct.js VS Unity

    Is ct.js a good alternative to Unity?
     
7 of 65 Unity alternatives