CD Projekt Red also disclosed a number of known issues with the toolkit, the first of which has to do with cooking. The Redkit requires a copy of the PC version of The Witcher 2, which must be patched up to version 3.3. After an accidental release last week, CD Projekt Red today officially launched an open beta for the Witcher 2: Assassins of Kings modding tools, collectively known as the Redkit.