MuJoCo, short for Multi-Joint dynamics with Contact, is a physics engine designed for research and development in robotics, machine learning, and biomechanics. This [https://github.com/google-deepmind/mujoco open-source software ] provides accurate and efficient simulation of complex physical systems, making it highly regarded among researchers and engineers.

MuJoCo was developed at the University of Washington and released in 2012. Initially created to aid in the study of motor control in humans and robots, it quickly gained popularity for its ability to simulate complex physical interactions with high precision and efficiency. In 2021, DeepMind, a subsidiary of Alphabet Inc., acquired MuJoCo and made it freely available to the public. There is also a community built MuJoCo WASM port that loads and runs MuJoCo 2.3.1 Models using JavaScript and WebAssembly<ref>https://github.com/zalo/mujoco_wasm</ref>.