The product is an expansion for Arkham Horror: The Card Game. There is no option to play separately with only the add-on, the main game is required.
You thought you had dealt with The King in Yellow and that this cursed play would not return to the streets of Arkham, but not everything is as easy as it seems… In the Path to Carcossa mission cycle, your search has taken you as far as Paris and even in front of the throne of Hastur himself . It took all your might, but madness is returning to the streets of ArkhamâŠ