CD Projekt RED har frigjort en række mod-værktøjer til PC-udgaven af spillet, og udvikleren snakker nu samtidig med Sony og Microsoft, om at bringe disse værktøjer til konsol. I et interview med GameSpot, fortalte en CD Projekt RED-repræsentant om, hvad spillere kan forvente af værktøjerne:
"They give access to game files and allow for easy extracting, compilation, and decompilation of resources. Beside visual changes, like modifying textures and models, they will allow to change UI assets and script files. The majority of gameplay-related mechanics are written in scripts. Having access to these scripts will allow to create even more ambitious and complex modifications."
"It's really important for us not to partition The Witcher community and allow access to mods to console gamers, too. We're considering various approaches to solve this and started initial talks with first-parties about this. We can't make any hard promises yet, but you can be sure that we're looking into it."
Modtagelsen har dog været blandet fra PC-folket, der rapporterer, at disse værktøjer ikke er helt lige så ekstensive som det tidligere REDkit til The Witcher 2: Assassins of Kings.