Steam data only
Thanks to hackers who leaked documents from the Insomniac Games studio, responsible for developing a number of exclusive Sony games, we now know more details about the ports of Sony games on PC.
For example, among the documents there is a slide with data on sales of various Sony ports on Steam (there is no data for the Epic Games Store). The date on the slide is February 2022, but the data is clearly more recent, as some of the games listed were released later.
The leader in sales was the port of Horizon Zero Dawn with sales of 3.3 million copies. Next comes God of War with 2.5 million copies. Days Gone (1.7 million) and Spider-Man Remastered (1.3 million) also had good sales. The other games listed on the slide didn't even reach 500,000 copies. But it's worth keeping in mind that all of these games hit the market at different times.
Also in the documents there is quite interesting information about Sony financing ports of its exclusives on PC. It is reported that if the planned costs of developing the port do not exceed $30 million, then the studio only needs to request confirmation by email. This is exactly what happened with the approval of the porting of Ratchet & Clank: Rift Apart.