
- BGG rank
- BGG #25
- BGG rating
- 8.2
Nemesis
- 1–5 players
- 90–180 min
- Complexity 3.5/5
- 2018

Rules assistance for Arkham Horror (Third Edition): Secrets of the Order
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 (Third Edition): Secrets of the Order is an expansion for Arkham Horror (Third Edition) released in 2021 for 1–6 players, 120–180 minutes per game, and ages 14 and up. It was designed by Philip D. Henry and its main mechanics are Dice Rolling, Modular Board, and Cooperative Game.
The unquiet spirits of the dead cry out and ghouls stalk the midnight streets of Arkham. Derelict portals yawn open between our existence and the horrific unknown, and even in the storied French Hill neighborhood, the Order of the Silver Twilight plots their path to greater power. The Arkham Horror (Third Edition): Secrets of the Order expansion brings investigators to the classic neighborhood of French Hill while also sending them beyond our reality into the depths of the terrifying Underworld. Two new double-sided map tiles bring the older regions of Arkham, Massachusetts to life, including the aforementioned French Hill neighborhood, as well as the Underworld itself. Four more investigators join the party, ranging from the steadfast soldier Mark Harrigan to the confident aviatrix Winifred Habbamock. The investigators’ jobs will not be easy — this expansion brings three entirely new scenarios into the fold, challenging investigators with restless spirits, secret cultists, and the depths of the Underworld itself. With over 130 new encounter and event cards, new assets, monsters, conditions, and a new type of map tile, Secrets of the Order opens a portal to a hoard of content, pulling you into some truly terrifying tales. —description from the publisher
Arkham Horror (Third Edition): Secrets of the Order supports 1–6 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 (Third Edition): Secrets of the Order is 120–180 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 (Third Edition): Secrets of the Order for ages 14 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 (Third Edition): Secrets of the Order has a complexity rating of 3.4 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 (Third Edition): Secrets of the Order belongs to these categories: Horror, Adventure, and Expansion for Base-game. Its main mechanics are Dice Rolling, Modular Board, and Cooperative Game. 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 (Third Edition): Secrets of the Order are: Philip D. Henry. 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 (Third Edition): Secrets of the Order as an expansion for Arkham Horror (Third Edition). Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Arkham Horror (Third Edition) to use it. Check that your edition of Arkham Horror (Third Edition) is compatible, as some expansions were revised between editions.