The news emerged in their latest earnings call. CDPR also confirmed that the Witcher trilogy as a whole has sold over 75 million copies. Combined with the over 20 million confirmed sales of their last game, Cyberpunk 2077, not to mention the video card game Gwent, this puts CDPR's lifetime sales at well over 95 million units sold.
The biggest-selling video game of all time is Minecraft, which is estimated to have sold around 238 million copies, followed by Grand Theft Auto V/Grand Theft Auto Online (180 million), Tetris (100 million) and Wii Sports (83 million).
Based on the Wikipedia ranking, The Witcher 3 has jumped over games such as Diablo 3 and The Elder Scrolls V: Skyrim to become the ninth-biggest-selling game of all time, although of course the accuracy of such lists may be questioned.
CDPR is currently working on Phantom Liberty, a major expansion to Cyberpunk 2077, which it will be previewing at the Summer Game Fest event on 8 June, with an anticipated release later this year. Their next full project is a fourth Witcher game, which is believed to focus on new characters and will not be a direct sequel to The Witcher 3.