Open Source Unreal Engine Alternatives

The best open source alternative to Unreal Engine is Godot Engine. If that doesn't suit you, our users have ranked more than 100 alternatives to Unreal Engine and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Unreal Engine are GDevelop, Redot Engine, Armory 3D and microStudio.

filter to find the best alternatives

Unreal Engine alternatives are mainly Game Development Tools, but if you're looking for Role-playing Games or 3D Modelers you can filter on that. Other popular filters include Free, Raspberry Pi, Open Source and Android. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Unreal Engine.
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Alternatives list

  1. Range Engine icon
     2 likes

    Range Engine is a light and powerful game engine and 3D software, made based on Blender Game Engine with improvements from UPBGE.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Windows
    • Linux
    • Python
    • Blender
     
  2. LÖVR icon
     2 likes

    Virtual Reality for Lua.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  3. Blitz3D icon
     21 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.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
     
  4. Verus Engine icon
     1 like

    Verus Engine is a modern, platform-agnostic 3D game engine. It is developed using C++ and HLSL. It is based on Direct3D 12 and Vulkan graphics APIs. The code is user friendly and well optimized.

    Cost / License

    • Free Personal
    • Open Source

    Application type

    Platforms

    • Windows
     
  5. GemRB icon
     2 likes

    GemRB (Game Engine Made with preRendered Background) is a portable open-source reimplementation of the Infinity Engine that underpinned Baldur's Gate, Icewind Dale and Planescape: Torment. It sports a cleaner design, greater extensibility and several innovations.

    Cost / License

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • BSD
    • FreeBSD
    • OpenBSD
    • NetBSD
    • Windows
    • Mac
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Symbian S60
    • ReactOS
    • Haiku
    • AmigaOS
     
  6. SmartShape icon
     5 likes

    Your project’s smart 3D digital twin as a Service. SmartShape (formerly Minko) is a technology to develop and design rich, interactive and universal 3D applications targeting computers, web browsers and mobile platforms.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
     
  7. The G3D Innovation Engine is a commercial-grade C++ 3D engine available as Open Source (BSD License). It is used in commercial games, research papers, military simulators, and university courses. G3D supports hardware accelerated real-time rendering, off-line rendering like ray...

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
     
  8. Nirvana 3D icon
     1 like

    A game engine written in Python, extending support across multiple GPU devices with 3D rendering, PBR Renderer and much more.

    Cost / License

    Platforms

    • Self-Hosted
    • Python
     
  9. CrossBrowdy icon
     5 likes

    Multimedia JavaScript framework to create real cross-platform and hybrid game engines, games, emulators, multimedia libraries and apps.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
     
  10. The Mirror icon
     1 like

    The open-source Roblox & UEFN alternative giving you freedom to own what you create. An all-in-one, real-time, collaborative game development platform built on Godot Engine.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Linux
    • itch.io
     
  11. Drag[en]gine icon
     1 like

    A free software game engine focusing on developing games faster, more modular and stable with true -1 day portability support.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Linux
    • Windows
    • Haiku
     
  12. Intrinsic icon
     3 likes

    Intrinsic is a Vulkan based cross-platform graphics and game engine.

    Cost / License

    Platforms

    • Windows
     
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