Nvidia has published the full code of the PhysX engine version 5.6.0 along with the PhysX SDK toolset and the liquid simulation library Flow GPU under the BSD-3 license. The code is available for Linux, macOS, iOS, Windows, and Android platforms. In the SDK PhysX 5.6 update, all GPU simulation core code was opened for the first time since 2018. The project includes over 500 ready-to-use CUDA kernels for solid body dynamics, fluid simulation, and object deformation functions.

Adam Morawianski, Nvidia's Chief Technology Officer for Simulation Technologies, noted the exclusion of core code in previous SDK versions. PhysX is used to process physical interactions in nearly a thousand games and is part of many game engines such as Unreal Engine, Unity3D, AnvilNext, Stingray, Dunia 2, and REDengine. The engine scales from smartphones to powerful workstations with multi-core CPUs and GPUs.

PhysX is also used for creating realistic environments in artificial intelligence research, robot training, and simulating conditions for testing autonomous vehicles.