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 [**Unity Robotics Hub**](https://github.com/Unity-Technologies/Unity-Robotics-Hub)
 Central repository for open-source Unity packages, tutorials, and other resources demonstrating how to use Unity for robotics simulations. Includes new support for ROS integration.
 
+[**MuJoCo**](https://mujoco.org/)
+Free and open source physics engine that aims to facilitate research and development in robotics, biomechanics, graphics and animation, and other areas where fast and accurate simulation is needed.
+
 ### Papers ###
 * [Optimization Based Controller Design and Implementation for the
 Atlas Robot in the DARPA Robotics Challenge Finals](https://www.cs.cmu.edu/~cga/drc/ICHR15_0025_MS.pdf)