The Witcher series, which includes The Witcher and the PC and Xbox 360 versions of The Witcher 2: Assassins of Kings have sold over 4 million copies.
According to developer boss Adam Badowski, "I’m still amazed with the result we have achieved with The Witcher franchise. Many gamers on many platforms have been drawn to the vivid and complex world we have created. In the gaming world summer means a lot of great, hot deals. So if you still don’t own the game look out for both retail and digital special offers."
“The Witcher and The Witcher 2 are great, robust RPGs, that every true gamer should own,” Badowski added.
A Mac OS version of The Witcher 2 is in the works for later in 2012.