The full God of War 3 is notorious for crashing on RPCS3 (especially the Hades segment). The demo is actually more stable. It is the "PC exclusive" experience hackers have been chasing—a self-contained, highly optimized slice of the game that runs better than the full title on emulators.
You can play God of War 3 on a PC. But you need to abandon the "exclusive demo" fantasy and embrace two legitimate methods. god of war 3 demo download pc exclusive
The actual demo was a PlayStation 3 exclusive originally released through specific promotional channels in late 2009. E3 2009 Build: The full God of War 3 is notorious