I made my way through the laboratory, carefully maneuvering through the maze of test tubes, burners, and other instruments. Just as I approached the Doctor’s desk, I was overwhelmed with the eerie sense that something less than human was watching me. I clutched my pistol and whirled around, but nothing was there, nothing except a thin cloud of green smoke...

The Lovecraftian adventures continue as investigators attempt to solve mysteries of scientific folly while holding on to their own sanity. Four new investigators enter the laboratory to collect clues and solve the cases of experiments gone awry, but they will be faced with the Crawling Ones and the nightmarish Byakhees. The rules for Forbidden Alchemy , the Mansions of Madness expansion, are now available for online download (pdf 7.2 MB) on the support page .

Explore the grotesque

Forbidden Alchemy introduces exciting new mechanics for your Mansions of Madness games. Inside, you will discover Alchemy Puzzles. These inventive new puzzle types are sure to confound all but the brightest investigators. As investigators encounter strange experiments, they will succumb to bizarre changes that are represented by Side Effect Cards. Travel through time with Time Period Cards, and unravel the mystery from the past or future. Beware of Mutation Tokens that represent strange growths, but may be a boon for the sleuths.

Steady yourself, and prepare to enter a world of horror where mayhem lurks at every corner. Prime yourself with the Forbidden Alchemy rulebook, and get set for new Mansions of Madness thrills and chills. Venture out to your local retailer and pre-order this Forbidden Alchemy .

Mansions of Madness is a macabre game of horror, insanity, and mystery for two to five players. Based on the beloved fiction of H.P. Lovecraft, Mansions of Madness tells a story in which one player takes on the role of the keeper, a malevolent force working to complete a sinister plot, and all other players take on the roles of investigators, the unlikely heroes who gather to oppose him.

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