
- BGG rank
- BGG #80
- BGG rating
- 7.9
Mansions of Madness: Second Edition
- 1–5 players
- 120–180 min
- Complexity 2.7/5
- 2016

Rules assistance for Mansions of Madness: Forbidden Alchemy
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.
Mansions of Madness: Forbidden Alchemy is an expansion for Mansions of Madness released in 2011 for 2–5 players, 120–180 minutes per game, and ages 13 and up. It was designed by Corey Konieczka and its main mechanics are Variable Player Powers, Hand Management, and Area Movement.
Game description from the publisher: Inside abandoned hospitals, secret laboratories, and forgotten cellars, scientists are conducting depraved experiments that will drag humanity to the brink of the abyss. Only a small group of investigators can discover the truth and put an end to these mad plots before it's too late... Mansions of Madness: Forbidden Alchemy provides players with new investigators for the Mansions of Madness base game, as well as new Trauma, Mythos, and Combat cards for use in any story. Forbidden Alchemy also includes three new scenarios, in which investigators will encounter new rooms, monsters, items, clues, locks, and obstacles: In "Return of the Reanimator", the investigators are tasked with entering a vermin-infested manor to seek the whereabouts of Doctor Herbert West, a reportedly insane scientist whose legendary experiments in reanimation led to his untimely demise. "Yellow Matter" tells the grim tale of research into strange extraterrestrial beings. But who is the experimenter, and who is the subject? "Lost in Time and Space" takes your Mansions of Madness experience to mind-bending new heights with the introduction of time travel! Travel back to the mid-nineteenth century or ahead to the mid-twenty-first in your search for the truth behind a strange and dangerous device. With four new investigators, two monster types, nearly 250 new cards, 40 tokens and markers, and six detailed map tiles, Forbidden Alchemy introduces a host of new enhancements to your Mansions of Madness experience. The revised printing of Mansions of Madness: Forbidden Alchemy, scheduled for release in May 2012, includes corrected cards and map set-ups for all three scenarios.
Mansions of Madness: Forbidden Alchemy supports 2–5 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: Forbidden Alchemy 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: Forbidden Alchemy for ages 13 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: Forbidden Alchemy has a complexity rating of 3.1 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.
Mansions of Madness: Forbidden Alchemy belongs to these categories: Murder / Mystery, Horror, and Exploration. 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: Forbidden Alchemy are: Corey Konieczka. 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: Forbidden Alchemy as an expansion for Mansions of Madness. 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 to use it. Check that your edition of Mansions of Madness is compatible, as some expansions were revised between editions.