
- BGG rank
- BGG #629
- BGG rating
- 7.3
Mansions of Madness
- 2–5 players
- 120–180 min
- Complexity 3.2/5
- 2011

Expansion for Mansions of Madness: Second Edition
2018
Rules assistance for Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion is an expansion for Mansions of Madness: Second Edition released in 2018 for 1–5 players, 120–180 minutes per game, and ages 14 and up. It was designed by Grace Holdinghaus and Kara Centell-Dunk and its main mechanics are Variable Player Powers, Hand Management, and Area Movement.
Within the lavish rooms of the Silver Twilight Lodge, the most influential citizens of Arkham gather to forge business alliances, plan parades, and lobby politicians. In secret, they also meet to enact forbidden rituals with dark consequences. The poor souls who discover this truth often vanish, never to be seen again. Sanctum of Twilight is an expansion for Mansions of Madness Second Edition that unites two new investigators against the Order of the Silver Twilight in two thrilling scenarios. With new spells, items, mechanics, and a new monster, this expansion immerses players in the Arkham Files universe as they confront the dangers threatening Arkham from within. —description from the publisher
Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion supports 1–5 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 Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion 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 Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion 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.
Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion has a complexity rating of 2.6 out of 5 from BoardGameGeek players, which makes it a medium-light 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.
Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion belongs to these categories: Fantasy, Fighting, and Murder / Mystery. Its main mechanics are Variable Player Powers, Hand Management, and Area Movement. 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 Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion are: Grace Holdinghaus and Kara Centell-Dunk. 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 Mansions of Madness: Second Edition – Sanctum of Twilight: Expansion as an expansion for Mansions of Madness: Second Edition. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Mansions of Madness: Second Edition to use it. Check that your edition of Mansions of Madness: Second Edition is compatible, as some expansions were revised between editions.