God of War 3 was never officially released for Windows PC. It is a PlayStation 3 exclusive title. To play it on a computer, you must use emulation (specifically the RPCS3 PlayStation 3 emulator). Emulation requires a very powerful PC and legally necessitates that you own a copy of the original PS3 game disc or its digital files (often called a ROM or ISO). This guide is for educational purposes and assumes you own the game legally. Step 1: Check Your PC Requirements (Critical) God of War 3 is one of the most demanding PS3 games to emulate. If your PC is not powerful enough, the game will run at unplayably slow speeds (10-15 FPS) or crash.
