Free Mujoco Licence @ Roboti.us

The non-commercial license was US$500, and commercial license was US$2000.

MuJoCo stands for Multi-Joint dynamics with Contact. It is being developed by Emo Todorov for Roboti LLC. Initially it was used at the Movement Control Laboratory, University of Washington, and has now been adopted by a wide community of researchers and developers.

MuJoCo is a physics engine aiming to facilitate research and development in robotics, biomechanics, graphics and animation, and other areas where fast and accurate simulation is needed. It offers a unique combination of speed, accuracy and modeling power, yet it is not merely a better simulator. Instead it is the first full-featured simulator designed from the ground up for the purpose of model-based optimization, and in particular optimization through contacts. MuJoCo makes it possible to scale up computationally-intensive techniques such optimal control, physically-consistent state estimation, system identification and automated mechanism design, and apply them to complex dynamical systems in contact-rich behaviors. It also has more traditional applications such as testing and validation of control schemes before deployment on physical robots, interactive scientific visualization, virtual environments, animation and gaming.

Dear MuJoCo Users,

Thank you for making this project a success! The growing demand for the software, combined with our manual licensing mechanism, has resulted in administrative overhead that is no longer sustainable. We are committed to keeping MuJoCo publicly available, while considering better alternatives in terms of licensing. Specifics will be announced here when ready. In the meantime, we are pleased to offer a free license available to everyone until October 31, 2021:

Activation key (download this file to the bin subdirectory of your MuJoCo installation)

License text

Some users have software license agreements allowing them to renew their existing licenses. While we advise against renewals under the circumstances, we will of course honor these agreements for users who wish to renew anyway. If you are such a user, please send a (new) email to , even if you have already emailed us prior to this announcement.

Yours,
Emo Todorov
Roboti LLC

July 27, 2021