Category: Scenario Page 1 of 2

But there’s a full moon risin; Lets go dancin in the light; We know where the music’s playin; Lets go out and feel the night.
Neil Young, Harvest Moon from Harvest Moon, 1992

OPERATION HARVEST MOON is a THE ESOTERRORISTS adventure (published by Pelgrane Press) designed as a one-off ‘convention-ready’ scenario or as a way of introducing new players to the world of The Esoterrorists. It also works well as a cold opening to a much longer series of dark and dangerous missions.

With the discovery of a body in the lower reaches of Blackbear Mountain (one of the many peaks within Wyoming’s Bighorn National Forest), a Search & Rescue team is urgently summoned to determine whether others might be trapped by the early-season change in weather. But what starts as a civil response may quickly become a life-or-death experience, where the hunters become the hunted.

The Membrane is weakened. What has come through?

Just a Little Knowledge: A Casting the Runes Scenario

By Marcus Bone

On March 18, 2025

In Casting the Runes, Scenario

A Casting the Runes Scenario written by Marcus D. Bone

Just a Little Knowledge is a scenario outline written to act as an introductory adventure for the Casting of the Runes roleplaying game. Designed to bring together a small group of investigators, it exposes them to the world of the supernatural and occult horror that lies hidden just beneath the surface of polite Edwardian society.

Set during the bleak autumn of 1908, the characters are about to be drawn into a mystery involving a book, a Cathedral and the sins of the church. Here they will uncover a secret buried for centuries that now released threatens dozens, if not hundreds, of innocent lives if not returned. So, are your Investigators brave enough to discover Just a Little Knowledge?

Inspired by the recent publication of Linden’s The Marshwood Vampire adventure and my own reviews of Casting the Runes publications, this scenario is hopefully the first of many for this great game I will release here.

Dark Aquarius: Call of Cthulhu 5e /Delta Green Scenario

By Marcus Bone

On March 4, 2025

In Delta Green, Scenario

A CALL OF CTHULHU (DELTA GREEN & PISCES) Scenario written by Linden Dunham

DARK AQUARIUS is a CALL OF CTHULHU (5th Edition) scenario (utilising the DELTA GREEN/PISCES setting) set in the UK during the long hot summer of 1976. The murder of a London art dealer leads the investigators to that hotspot of mythos activity, the Severn Valley. There they find themselves delving into a much older killing that connects to their case. With much of the evidence pointing towards Brichester Lake, a confrontation with the Great Old One Glaaki may well be on the cards.

NOTE: This scenario uses the Call of Cthulhu 5e mechanics (which can be easily adapted to either the Call of Cthulhu 7e or Delta Green ruleset with some minor changes).

– Download Dark Aquarius: A CALL OF CTHULHU 5e/DELTA GREEN Scenario (PDF, 20 pages, 1.7MB) –

Published by arrangement with the Delta Green Partnership. The intellectual property known as Delta Green is a trademark and copyright owned by the Delta Green Partnership, who has licensed its use here. The contents of this document are ©Linden Dunham, excepting those elements that are components of the Delta Green intellectual property.

Header Image by vector_corp on Freepik.

Hailing From Darkest Stars: A Coriolis Scenario

By Marcus Bone

On February 23, 2025

In Community Content Publication, Coriolis, Scenario

In Hailing from Darkest Stars the player characters are drawn into a mystery surrounding the disappearance of the Consortium scout ship Almuashir. Tasked by their Patron with discovering the fate of this ship, they will be informed that a single member of its crew has supposedly returned – unseen and unannounced – to Coriolis Station. Investigating this individual will lead the party across Coriolis, to places new and old, in a race to discover what they might know.

But the characters are not the only party wanting to find the lost ship and uncover its dark secrets. Within the Consortium powerful factions collide in what will become a deadly contest to secure an ancient artifact, the contents of which might spell doom for not only Coriolis Station but the entirety of the Third Horizon!

Hailing from the Darkest Stars looks to create its own distinct version of the Coriolis milieu, a darker, more threatening setting where the powers of the Dark Between the Stars are foremost in the setting, lurking just behind the otherwise normal trappings of polite society. In doing so, this scenario introduces a different type of Coriolis story, one that presents new challenges to the characters of this fantastic game setting.

Beware… as only great evil hails from darkest stars!

– Hailing from Darkest Stars is available for US $5.00 via DrivethruRPG –

For Whom The Bell Tolls: A Scenario Outline

By Marcus Bone

On February 21, 2025

In Liminal, Scenario

Centuries have passed and yet still the traitors of an ancient King are forced replay their betrayal and death each Sunday evening. But will the death of their torturer bring an end to their suffering, or will lit lead to more death?

In For Whom the Bell Tolls, the characters’ Cabal is thrown into a mystery of forgotten rites, misguided desires, and a secret cult hellbent on dominating the Hidden World for their own personal gain!

Written in a outline format, rather than a complete scenario, this adventure was originally written for a gaming convention that was cancelled due to a Covid lockdown, and has been reviewed and expanded here. Note that while it was designed for three specific pre-generated characters – a private detective (a Tough), a necromancer (a Magician) and a Determined, additional party members can be added with ease.

IMPORTANT! THIS DOCUMENT IS NOT A COMPLETE ADVENTURE!
Rather it is an outline providing the main plot, core NPCs and the major events for a Game Master to create their own Liminal scenario based on the presented premise. Most of the ‘connective tissue’ required to turn this outline into a playable adventure is left to you, dear reader, to create.

– Download For Whom the Bell Tolls (PDF, 11 pages, 1.3MB) –

The Marshwood Vampire: A Casting the Runes Scenario

By Marcus Bone

On February 18, 2025

In Casting the Runes, Scenario

A Casting the Runes Scenario written by Linden Dunham

In the west country county of Dorset, a local doctor’s suspicions of a vampire preying on the district’s inhabitants proves to be well-founded. What will the Investigators do and how will they ever find The Marshwood Vampire?

The Marshwood Vampire is a scenario for the Casting the Runes roleplaying game. In this adventure the Investigators will travel to the west country in an attempt to track down and destroy an evil reborn. But things, of course, are never what they seem and recent wrongs, old manors and reluctant locals all stand in the way on the party’s success…

– Download The Marshwood Vampire (PDF, 10 pages, 776KB) –

[Scenario] Operation Parcel Post – The Esoterrorists

By Marcus Bone

On January 3, 2025

In Scenario, The Esoterrorists

“Just a quick and dirty pick up they said… a cake walk, huh?
Well, we’ll just see about that shall we…”

OPERATION PARCEL POST is a quickstart scenario written for Pelgrane Press’ The ESOTERRORISTS Roleplaying Game. Complete with three pre-generated characters, this adventure is designed to be run as either a one-night sample session or as a pick-up game at a convention.

In this scenario, the are Operatives assigned to investigate a strange crate that has been stopped passing through Customs in a large, international airport near where they operate. Arriving amidst an influx of holiday session travellers, the party will discover that the package in question contains an artifact infused with an Outer Dark Entity (ODE). Of course, what starts as a nice and simple ‘locate and grab’ mission soon escalates into a bizarre game of cat and mouse as the ODE uses its influence and power to escape the airport and the perhaps our heroes!

[Scenario] The Stench of an Open Grave – Updated to V1.1

By Marcus Bone

On November 29, 2024

In Call of Cthulhu, Cthulhu Dark Ages, Scenario, Site News

Something rots in the heart of Somerset… and where old traditions met new, death is the only outcome…

The Stench of an Open Grave is a short adventure designed to introduce a small group of players to the atmosphere and intrigue of Cthulhu Dark Ages 3rd Edition for the first time. Ideal also for Keepers looking to run a dark – yet simple – mystery set in the early Middle Ages, it gives you everything you need (including three pregenerated characters – created specifically for the scenario) to bring this world – and its horrors – to life.

—- Buy this scenario on DriveThruRPG.com —-

Updated to version 1.1 November 2024 –

With ‘Stench’ successfully reaching Copper status at DrivethruRPG, I thought it was high time that this scenario got a good edit and update. While none of the content has been altered for this version, the text has been tidied up in places and should have far fewer spelling and grammar errors (sorry about that!). I have also done a bit of tinkering with the fonts and styles to align the document with my next planned Cthulhu Dark Ages adventure set around Glastingberi Abbey (no date as yet for a release).

Should you buy this scenario?

This scenario was created with the express purpose of introducing new players to Cthulhu Dark Ages and as such presents what I hope is a simple, almost linear, mystery for them to explore. With this audience in mind, ‘Stench’ attempts to downplay the more fantastical elements that can sometimes seep into Dark Ages games and instead tries to bring to life the culture and experience of living in the Early Middle Ages. Of course, this may mean more experienced role-players (especially those well versed in the Dark Ages) might find the story a little too simplistic for their tastes, but nevertheless I would still like to think that you ‘hold in your hand’ a well thought out, fun scenario; one that can give a good night or two’s entertainment for any fan of the Cthulhu Mythos.

After much effort and time Stench of an Open Grave (for Cthulhu Dark Ages 3rd Edition) is now available up on Drive Thru RPG for sale (my first non ‘pay-what-you-want’ offering).

You can get it here for just $6.00 US. I’m hoping – if this sells well – it might break the shackles and motivate me to produce some of the myriad of other Call of Cthulhu scenarios (and campaigns) I have floating around on my various drives.