Used in more than 500 games on multiple platforms, NVIDIA PhysX is one of the most popular physics engines for game development. The PhysX SDK is a proven solution for gameplay physics and simulation-driven effects. It is integrated into major game engines such as Unreal Engine 3 and 4, Unity, AnvilNext Engine, Bitsquid Engine, Dunia 2 Engine and REDengine.

NVIDIA PhysX Clothing and Destruction are integrated into the Unreal Engine 4. PhysX Clothing and Destruction effects can be seen in games such as: Batman: Arkham Asylum, Batman: Arkham City, Bioshock Infinite, Borderlands 2, Lords of the Fallen, Monster Hunter Online, Daylight, as well as upcoming titles such as The Witcher 3.

A major component of the NVIDIA GameWorks library, the latest PhysX version (3.3.3) is our best ever, with improved stability and performance. Features include constrained rigid body dynamics, collision detection, scene queries, character controller, particles, vehicles and much more.

The PhysX software development kit (SDK) is already free on Windows platforms. We’re now extending this to include PhysX Clothing and PhysX Destruction, enabling game developers to easily create a more interactive gaming environment. Starting this month, PhysX SDK is now available free with full source code for Windows, Linux, OSx and Android on https://github.com/NVIDIAGameWorks/PhysX (link will only work for registered users).

How to access PhysX Source on GitHub:

• If you don't have an account on developer.nvidia.com or are not a registered member of the NVIDIA GameWorks developer program click on the following link to register: http://developer.nvidia.com/registered-developer-programs

• If you are logged in, accept the EULA and enter your GitHub username at the bottom of the form:
  http://developer.nvidia.com/content/apply-access-nvidia-physx-source-code
• You should receive an invitation within an hour