The disturbances in H.P. Lovecraft's New England don't stop at the Arkham city line. Nearby Dunwich is also being wrecked by horrible events and other worldly forces. Dunwich Horror introduces several new game concepts to the Arkham Horror board game, including Gate Burts, Madness and Injury cards, tasks and missions, and a new type of monster movement. It also includes an expansion board featuring the village of Dunwich, 8 new investigators, 4 new Ancient Ones, over 20 new monster markers, and dozens of new items and skills.