16 Oct 2025
Genesis is a universal physics engine designed for building, iterating, and refining simulations with comprehensive control over virtual environments. This free system unifies various physics simulations, from soft bodies to fluids, and offers unprecedented speed for training advanced AI models.

Genesis functions as a universe simulation platform, allowing users to build, break down, and refine simulations with comprehensive control, much like a 'god mode' experience.
Unlike many specialized physics simulation systems, Genesis unifies diverse functionalities such as soft bodies, fluids, granular simulations, particles, honey, and light simulations into one comprehensive system, and it is available to the public for free.
Genesis demonstrates exceptional speed, proving up to 80 times faster than NVIDIA's Isaac Gym and capable of reaching hundreds of millions of frames per second in highly optimized benchmark cases.
At 244 million frames per second, Genesis can simulate time equivalent to four times the period from the birth of Jesus Christ to today, or generate 30,000 different worlds in parallel for every hour of real-time.
Genesis facilitates Sim2Real learning by allowing AI agents and robots to train in diverse simulated environments, accumulating thousands of years of experience in parallel virtual worlds within a short real-world timeframe.
This simulation capability is poised to revolutionize robotics by training real robots to perform useful tasks, with the potential to handle various robot morphologies and ensure their utility and safety before real-world deployment.
Beyond physics simulation, Genesis can generate character animations, interactive worlds, and individual objects within them, also functioning as a generative data engine capable of creating new things from simple text prompts.
Genesis is designed to be differentiable, enabling users to specify a desired end state, such as a blue ball on a black dot, and have the system compute the necessary forces and angles to achieve that future outcome.
The user guide, code, and library for Genesis are freely available, with content creators encouraging user engagement through likes and comments to promote further educational content and works.
While powerful, real-world performance of Genesis may differ from benchmark cases, and there has been online criticism regarding some claims, with detailed answers provided for clarity.
This work might change the world by enabling real robots to perform useful tasks, leveraging simulated training across vast virtual environments at unimaginable speeds.
| Feature | Description | Benefit/Insight |
|---|---|---|
| Unified Physics Engine | Combines diverse simulation types (soft bodies, fluids, granular, light) into a single system. | Eliminates the need for multiple specialized tools, offering a comprehensive and integrated simulation environment. |
| Exceptional Simulation Speed | Up to 80 times faster than competitors like Isaac Gym, reaching hundreds of millions of frames per second. | Enables rapid iteration, extensive training, and the simulation of vast experiential data in minimal real-world time. |
| Sim2Real Robotics Training | Facilitates robot learning in 30,000 parallel virtual worlds for effective transfer to real-world applications. | Accelerates robot development and ensures high capability, versatility, and safety before physical deployment. |
| Differentiable Programming | Allows specification of desired end states, with the system computing the necessary forces and angles to achieve them. | Enables goal-oriented simulation and the creation of targeted future outcomes for complex tasks. |
| Generative Data Engine | Capable of generating character animations, interactive worlds, and objects from simple text prompts. | Expands application beyond pure physics to content creation, scene generation, and dynamic environment design. |
| Free Accessibility | User guide, code, and library are freely available for public use. | Promotes widespread adoption, innovation, and collaborative development within the research and engineering communities. |
