Crusader Kings II: The Seven Kingdoms is a Crusader Kings II mod based on the 'Game of Thrones' universe. Built from the ground up with acute world detail and a focus on Westeros Unlike the AGOT mod, TSK lacks a considerable amount of development and singleplayer content, so we suggest players check out their mod first if they're looking for a rich and unrivaled singleplayer experience (and one that includes all of Essos too!).