Despite fan requests for years, Sony has not released Shadow of the Colossus on Steam, Epic Games Store, or GOG. The game remains a console exclusive (PS2, PS3, PS4, PS5 via backwards compatibility).
If you see a website offering "Shadow of the Colossus PC Download" as a direct .exe file: Shadow Of The Colossus Pc Download
The 2011 PS3 remaster runs at a higher native resolution than the PS2 version. RPCS3 is the emulator for this. Despite fan requests for years, Sony has not
These are grey-area downloads. They bundle a PS2/PS3 emulator with a pirated ROM. While technically playable, they are often poorly configured, missing BIOS files, or seeded with malware. RPCS3 is the emulator for this
The original 2005 PS2 version has been preserved brilliantly by the emulation community. Using PCSX2, a free and open-source PS2 emulator, you can run the original Shadow of the Colossus at internal resolutions up to 4K.