The Blender Game Engine is a component of Blender, a free and open-source comprehensive 3D production suite, used for making real-time interactive content. The game engine was written from scratch in C++ as a mostly independent component, and includes support for features such as Python scripting and OpenAL 3D sound.
Screenshots showing advanced graphics attained with a custom build of Blender that has soft shadows. Created by leonn from the BlenderArtists forum.