|Release date||April 7, 2018 |
|Code licenses||OpenSceneGraph Public License  (LGPL-based)|
|OpenSceneGraph is a free game. This means that the source code is available to be studied, modified, and distributed. Most projects look for help with testing, documentation, graphics, etc., as well.|
OpenSceneGraph, or OSG, is a cross-platform real-time 3D engine written in C++ and based on OpenGL, widely used for many applications including games.  It only focuses on 3D rendering and does not alone offer related functionality such as physics.