Studio Lambert have just announced the OFFICIAL Traitors Puzzle book.
There’s an Amazon listing for a Traitors puzzle book, although it looks a bit different and the dates are all over the place so buyer beware. Edit Edit Edit: This one looks much better.
Edit: I don’t know when this came out but there’s already a new edition of the card game with some digital implementation.
Edit Edit: And here’s the board game out August 10th. Looks like a straight reskinning of an existing foreign version, which probably explains the prisoner’s dilemma endgame we have here.
Oh! I’ve just noticed the The Traitors book is Alan Connor, off of Only Connect, House of Games and The Word.