The Witcher 3 sold a staggering six million copies in just six weeks, CD Projekt Red studio boss Adam Badowski confirmed in an open letter to fans. The sales figures were reported in a letter that doubled as a thank you for the support shown by fans, with Badowski offering thanks on behalf of everyone at the studio. Wild Hunt launched on PC, PS4 and Xbox One in May, and the studio's next game, Cyberpunk 2077, is currently in development.