Alla 1993-1995-serierna bygger på noveller från Sapkowski, (förutom den sista, Zdrada / Förräderiet ). Lista från Wikia :
Detta är anledningen till att Sapkowski krediteras som medförfattare - han skrev källmaterialet för dem alla. Såvitt jag vet att de inte condradicerar något som är uppbyggt i romanen.
Vad gäller canonicitet verkar Sapkowski inte överväga något kanon bortom böckerna. Utdrag från en intervju om Witcher videospel :
"Adaptations - although they can in a way relate to the story told in the books - can never aspire to the role of a follow-up. They can never add prologues nor prequels, let alone epilogues and sequels.
"If we level the field between books and their adaptations in other media, only the former can be the ones telling a story," he stated. "There can never be a different relation between a book and its adaptation, other than the one that without the book the adaptation would not exist at all.
"I realise that current times accustom us - which I find terrible - to the strange convergence of media and the freedom of mixing them. To me as a writer, the idea to write 'adjuvant content' and create something 'complementary' to a game or a comic is an absolute pinnacle of idiocy."
"I will definitely skip any 'alternative ideas'," Sapkowski promised. "It'll come easily to me anyway, as I don't know any of them. And even if I knew, it would be funny and silly were I to write based on the game's suggestions. I suppose I have made myself clear when I said that I will never accept any ideas and concepts of 'complementarity plots' and 'building coherent stories'. A story can only be contained in a book."
Och från en annan intervju på polska :
All adaptations - movies, comics or games, including "The Witcher" - are only adaptations, they are completely separate feature films, the work of their creators . I have no references to Geralt's witchcraft, and they can not be treated as any canon, because they are the only ones I have printed in printed form. Therefore, if the story of the witcher is actually taken up - whether in the form of a prequel, a sequel or a spin-off - will not be the least adaptable to any adaptation, the elements of these adaptations will be completely overlooked - in the actual canon of the witcher's tales.