According to the CD Projekt RED’s financial report for the fiscal year 2018, the biggest chunk of sales for the massively popular Witcher 3, came from PC with 44.5% of the total followed by PlayStation 4 with 39.5% and Xbox One at the end with 15.5%. More sales data and the report itself are over at PC Games Insider.
The Witcher 3 launched back in 2015 and in its initial year PS4 sales were in the lead with 48% of the total compared to PC’s 31% but the following year turned things around for the systems.