To be honest, the Witcher novels are not that great. I liked the short stories much better, and Sapkowskis Hussite trilogy is much better anyways.

Still, I found the Witcher games to have a quite solid story. Which doesnt mean that Sapkowski should feel like integrating any of the games authors ideas into the world he imagined. I wonder where he got the idea. The whole thing sounds like cooperation between the writer and the game studio didnt work that well. Which is a shame.