
- BGG rank
- BGG #356
- BGG rating
- 7.7
Arkham Horror (Third Edition)
- 1–6 players
- 120–180 min
- Complexity 3.4/5
- 2018

Rules assistance for Arkham Horror: Dunwich Horror Expansion
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Arkham Horror: Dunwich Horror Expansion is an expansion for Arkham Horror released in 2006 for 1–8 players, 240 minutes per game, and ages 12 and up. It was designed by Kevin Wilson and Richard Launius and its main mechanics are Variable Player Powers, Hand Management, and Dice Rolling.
Dunwich Horror is a large-box expansion for the Fantasy Flight Games edition of Arkham Horror, and is a part of the Arkham Horror Series. Once again, terror has come to New England, this time spreading to the small country town of Dunwich, just a few miles from Arkham. The area is filled with rolling hills, many of which are topped with mysterious stone circles or the ramshackle houses of the recluses who live outside of town. At night, the piping of the whippoorwills fills the air, while lightning bugs dance in the witch-haunted hallows. This is a place where dark pacts with unknown forces are made, and where city folk go to disappear without a trace. But however much the people of Dunwich may distrust outsiders, they desperately need your help against the Horror that has manifested on the Whateley farm... Dunwich Horror adds 8 new Investigators, 4 new Ancient Ones and many new Investigator cards, Mythos cards and monsters to the base set. It also adds new location cards, for a total of 14 cards at each location instead of 7. Dunwich Horror also adds many new mechanics. Players can take a train to Dunwich (a new board that is placed on the end of the Arkham board), which adds 9 new locations and 2 new outer worlds to the game. Players reduced to 0 stamina or sanity have the option of drawing from the Injury or Madness deck, acquiring permanent handicaps, rather than losing half their items and clue tokens. Gates are no longer permanently sealed (a popular house rule in the base game). Condition cards provide benefits to all players may be activated. And, of course, the Dunwich Horror itself - not as strong as the Ancient Ones, yet far stronger than any other monster in the game. This expansion also features revised rules and an FAQ that addresses many of the perceived faults of the base game. Replacement cards are provided for items and spells that are subject to errata.
Arkham Horror: Dunwich Horror Expansion supports 1–8 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The listed playing time for Arkham Horror: Dunwich Horror Expansion is 240 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Arkham Horror: Dunwich Horror Expansion for ages 12 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Arkham Horror: Dunwich Horror Expansion has a complexity rating of 3.5 out of 5 from BoardGameGeek players, which makes it a medium-weight game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Arkham Horror: Dunwich Horror Expansion belongs to these categories: Fighting, Horror, and Adventure. Its main mechanics are Variable Player Powers, Hand Management, and Dice Rolling. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The credited designers of Arkham Horror: Dunwich Horror Expansion are: Kevin Wilson and Richard Launius. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists Arkham Horror: Dunwich Horror Expansion as an expansion for Arkham Horror. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Arkham Horror to use it. Check that your edition of Arkham Horror is compatible, as some expansions were revised between editions.