You must legally own the PS3 disc and dump the files yourself.

to run the game locally on PC. This method allows for upscaling to higher resolutions (like 4K) but is extremely demanding on hardware. : The game is currently listed as RPCS3 Compatibility List

: The base game (v1.00) is often unstable. Use tools like Rusty PSN to download and install all sequential updates through version 1.12.