Unravel terrifying secrets, brave unspeakable horrors, and perhaps lose a bit of your mind along the way? Dare to follow... The Trail of Cthulhu!

This is a complete roleplaying game of investigative horror, plunging you headfirst into the eerie 1930s, deeply rooted in the chilling work of H.P. Lovecraft. You'll uncover mysteries in dusty libraries and bloody crime scenes, walk the mean streets of Chicago, or hack through the sweltering jungles of the South Pacific. You’ll battle vile cults, or recoil in sheer terror at the alien enormities they worship. The game uses an adapted and enlarged version of the groundbreaking GUMSHOE system, offering a laser-like focus on investigation, compelling characters to explore and uncover clues, even at the expense of their own health and sanity.

Using the revolutionary GUMSHOE investigative roleplaying system, this game features:

• Sanity which measures your blissful ignorance of the true nature of reality, and Stability which defines how robust your mental health is – because you'll need it!

• Powerful Investigative abilities like Cop Talk, Interrogation, and Occult, designed to help you find that awful crypt and maybe even hint at what unspeakable things lurk within.

• Compelling Drives such as In the Blood and Arrogance, pushing your character to delve into that crypt even in the dead of night.

• Practical General skills like Sense Trouble, Filch, and Scuffling, to hopefully get you out again in one piece.

Keepers (that's you, Game Masters!) are offered incredible support:

• Rules you can tune to match your preferred style, from pure cosmic despair to lurid, two-gun Pulp action.

• Comprehensive support for adventure and campaign creation, along with invaluable suggestions for on-the-fly improvisation.

• Three exciting campaign frames for different play styles: tweedy academics, jut-jawed G-men, or grimy traffickers in the eldritch.

• Plus, a complete introductory adventure, "The Kingsbury Horror," to get you started immediately.

• Effective techniques to run the game and masterfully maintain the atmosphere of mystery and chilling malice.

And for all you Mythos lore hounds, Trail of Cthulhu reveals a fresh view of the Mythos:

• Gods, ancient tomes, and forbidden magic, all presented with an emphasis on mystery and dramatic impact, including Cthulhoid lore never before revealed in any game!

• Detailed alien races, complete with their unsettling spoor, brutal killing techniques, and the forensic clues their victims inadvertently reveal.

• The grim original horror setting – the 1930s – brought to life against the backdrop of depression, looming war, and rising totalitarianism.

Trail of Cthulhu is produced under an arrangement with Chaosium, Inc., ensuring its authenticity and terror are top-notch. Do you dare to follow the clues, whatever the cost?