Alternatives to Source SDK for all platforms with any license

  • Urho3D

    Urho3D is a lightweight, cross-platform rendering and game engine implemented in C++ and released under the MIT license. Greatly inspired by OGRE and Horde3D.

    Free Open Source Mac Windows Linux Android iPhone ... Raspberry Pi

    Urho3D 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 to create realistic games but...

    Free Open Source Mac Windows Linux Android iPad ... Xbox

    No features added Add a feature

    Xenko Game Engine icon
  • SmartShape

    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...

    Free Open Source Mac Windows Linux Web

    No features added Add a feature

    SmartShape icon
  • Amazon Lumberyard

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

    Free Windows

    No features added Add a feature

    Amazon Lumberyard icon
  • Maratis

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

    Free Open Source Mac Windows Linux iPhone iPad

    No features added Add a feature

    Maratis icon
  • UnrealEd

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

    Commercial Windows

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