Sales of The Witcher 3 in the United States saw a colossal rise in the wake of the Netflix TV show.

That's according to market tracker The NPD Group, which reports that physical sales of CD Projekt RED's 2015 fantasy RPG saw a 554 per cent year-on-year increase in December 2019 following the launch of the TV series at the end of that month.

The Netflix TV show also saw The Witcher 3 see an all-time concurrent player high on Steam, too, and was the best-selling title on Valve's platform at the start of 2020.

The Witcher TV series was also on track to be Netflix's biggest first series ever, per the streaming platform's financial report for the three months ending December 31st, 2019. A second series is on the way in 2021, while Netflix is bringing an anime Witcher TV show called Nightmare of the Wolf with Korean animation firm Studio MIR.

The Netflix show also drove a 562 per cent increase in sales of the physical Witcher books, driven by short story compilation The Last Wish on which a large part of the first series is based.