MuJoCo is a general purpose physics engine designed to facilitate research and development in robotics, biomechanics, graphics, animation, and machine learning through fast and accurate simulation of articulated structures.
The tool addresses the need for high-performance physics simulation by providing a C API with a runtime module tuned for speed, operating on preallocated low-level data structures compiled from XML. It includes an interactive visualization system with a native OpenGL GUI and exposes utility functions for computing physics-related quantities. The engine is built to handle complex interactions between articulated bodies and their environments with both accuracy and computational efficiency.
Researchers and developers working on robotics, biomechanics, or machine learning projects that require detailed physics simulation should consider this tool. It suits projects where performance matters and where researchers need access to low-level simulation data. The project provides Python bindings for those preferring to work in Python rather than C, and offers a Unity plugin for developers integrating physics simulation into game engines. Interactive visualization through the native viewer allows for quick iteration and debugging of simulations.
The project maintains a comprehensive test suite that runs on every commit to the main branch. Documentation is actively maintained and kept current with upcoming features documented in advance. The codebase receives regular updates addressing both new capabilities and refinements to existing functionality.
