inked a deal to bring PhysX SDKs to registered PS3 developers free of charge. The partnership gives PS3 devs the binary version of the PhysX kit, which includes a full-featured application programming interface and physics engine.
And just like fellow middleware Havok, Nvidia PhysX is also free for PC developers. Most games developed with PhysX have been PC titles (Empire Earth III), but PS3 support seems to be growing. In the past, PhysX was used in 2006's Mobile Suit Gundam: Crossfire. Not the best game out there, but future titles that will harness PhysX in some way, such as the upcoming PS3-exclusive Heavy Rain, show much more promise.