According to this article
But that answer is from year 2009. Today, Physx give us the access to its source code, awesome, right? .Oluseyi wrote:If you're using the binary PhysX SDK on Windows or Linux, yes.
What Does It Cost?
The NVIDIA PhysX SDK (binary) is 100% free and available right now for download by developers. In addition to the free software offering, NVIDIA offers a support plan and a paid license program which enables developers to modify the SDK to suit their needs.
The binary version of the PC SDK is offered at no charge as outlined below. Source code (for integration purposes) is available for a fee as provided below...
The paid license program is for developers who want access to and permission to modify the source code to PhysX. So long as that's not you, yes, PhysX is free.
But I can't find any license note on PhysX website, thus I can't make it clear if PhysX is free for commercial use or not
Thanks for reading.