The Muse OpenIG. An opensource OpenSceneGraph based image generator application suite.

OpenSceneGraph git mirror

Ogre1 - scene-oriented, flexible 3D engine written in C++

Fast, flexible and simple GUI.

Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.

ZeroMQ core engine in C++, implements ZMTP/3.1