If you already own the original disc, you can (legal in many jurisdictions) and compress it yourself using tools like CSO compress or 7-Zip .
To run the game, you will need the PCSX2 emulator, which is a free and open-source tool. How to Play PS2 Games on PC [PCSX2 Emulator] god of war 2 ps2 iso highly compressed for pc verified
If you choose to use a compressed ISO with an emulator like PCSX2: If you already own the original disc, you
Download the ~2 GB .7z from a community-verified source (check r/Roms megathread). Extract to get the full 8.5 GB ISO. Configure PCSX2 with Vulkan + speed hacks. Enjoy the best action game on PS2—now on your PC. you will need the PCSX2 emulator
Now go, Spartan. Zeus awaits.