Alternatives to Source SDK for all platforms with any license

  • Unity icon


    Unity is a multi-platform game development tool, designed from the start to ease creation. A fully integrated professional...

    Freemium Mac Windows

  • Unreal Engine icon

    Unreal Engine

    Unreal Engine is a professional suite of tools and technologies used for building high-quality games across a range of platforms....

    Free Personal Mac Windows Linux

  • Superpowers icon


    Superpowers is an HTML5 development environment for making 2D and 3D games. It can be extended with plugins and lets you collaborate...

    Open Source Mac Windows Linux

  • Urho3D icon


    Urho3D is a lightweight, cross-platform rendering and game engine implemented in C++ and released under the MIT license. Greatly...

    Open Source Mac Windows Linux Android iPhone Raspberry Pi

  • Xenko Game Engine icon

    Xenko Game Engine

    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...

    Open Source Windows

  • Amazon Lumberyard icon

    Amazon Lumberyard

    Amazon Lumberyard is a free AAA game engine deeply integrated with AWS and Twitch – with full source.

    Free Windows

  • Game Guru icon

    Game Guru

    Create, play and share fun games on your PC with absolutely no technical knowledge needed!

    Commercial Windows

  • Marmalade

    Marmalade is an award winning, cross-platform development tool built around the belief that developers should be free to innovate...

    Free Personal Mac Windows Android iPhone Windows RT Android Tablet ... Windows Phone iPad

  • Maratis icon


    Maratis is a portable, simple and visual game development tool designed for artists and developers. The Engine has been tested on...

    Free Mac Windows Linux iPhone iPad

  • Minko icon


    3D. Everywhere. Minko is a technology to develop and design rich, interactive and universal 3D applications targeting computers...

    Open Source Mac Windows Linux Web / Cloud

  • Cafu Engine

    A game and graphics engine for multiplayer, cross-platform, real-time 3D action, GPL licensed

    Free Windows Linux Lua

  • Stingray icon


    Autodesk Stingray 3D game engine and design visualization software helps developers and designers produce visually stunning...

    Commercial Windows

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  • UnrealEd icon


    UnrealEd (UEd for short) is the level editor used to create levels for Unreal engine games (eg UT2004 or Killing Floor). Built-in...

    Commercial Windows

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