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The 2d20 System Reference Document (or 2d20 SRD) is a free toolkit that allows creators to craft their own 2d20-based role-playing games and supplements. It explains all the core mechanics of the system, enabling game designers to create exciting experiences around Modiphius’ cinematic high-action and dramatic ruleset.
The 2d20 SRD serves as a central reference for the “core” of the 2d20... [click here for more] |
Modiphius |
FREE
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This packet includes logos, Word, and InDesign templates for use with the Modiphius 2d20 World Builders program. ... [click here for more] |
Modiphius |
FREE
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Dust off your bolo tie and shuffle up the cards, because there's a poker tournament in town, and you're invited!
Aces High is a mini-adventure for your favorite post-apocalyptic sci-fi 2d20 game, set in the Las Vegas area. It includes rules for a poker tournament and other casino games, a gallery of colorful high-rolling NPCs, a zone-based battlemap, and two plotlines to add intrigue to the tournament.... [click here for more] |
Modiphius |
Pay What You Want
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A Prehistoric Monster Entombed in Ice!
It is March 1940 and Nachtwölfe has dispatched a secret expedition to an uncharted island colloquially known as Threshold in the US territorial waters of the Bering Strait.
Intercepted intelligence has alerted Section M to the expedition’s presence and agents are recruited as part of a joint Anglo-US mission to investigate and interdict. They... [click here for more] |
Modiphius |
$7.50
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Triad Trouble in Shanghai
Shanghai, China: January 1943. The city is in the tight grip of the Imperial Japanese Army. While high society revellers enjoy the delights of the “Paris of the east”, Black Sun secretly loot the occult treasures of the Pacific under the nose of the Japanese occupiers.
Section M learns that the Germans have a secret way of smuggling these treasures out, codenamed Oberon... [click here for more] |
Modiphius |
$7.50
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The Fate Guide to the Secret War is a terrifying World War Two setting for Fate Core with a conversion by Ryan Macklin
This edition combines both the Investigator's Guide and Keeper's Guides into one single comprehensive volume and includes extras like character creation and character sheets.
Discover the secret history of World War Two: stories of amazing heroism,... [click here for more] |
Modiphius |
Pay What You Want
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Welcome to Dark Tales from the Secret War
Inside are thirteen stories set in the universe of Achtung! Cthulhu, a world which mixes the terrors of HP Lovecraft’s Cthulhu mythos with mankind’s darkest yet finest hour, the second world war.
Thirteen unhallowed stories from modern mythos masters await, featuring: fiendish Nazi villains, audacious Allied heroes, blasphemous secret ceremonies and twisted,... [click here for more] |
Modiphius |
$7.00
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The Crystal Void by John Houlihan
The year is 1810 and as Napoleon's Grand Armee chases Wellington's expeditionary force through Portugal to the lines of Torres Verdras, the dashing if rather dim French Hussar Gaston d'Bois is astonished to encounter the love of his life.
But the fragrant Odette is soon swept away, abducted, before d'Bois can consummate his passion by the Marquis... [click here for more] |
Modiphius |
$3.00
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The Crystal Void by John Houlihan
This includes the PDF of the Crystal Void Illustrated edition
The year is 1810 and as Napoleon's Grand Armee chases Wellington's expeditionary force through Portugal to the lines of Torres Verdras, the dashing if rather dim French Hussar Gaston Dubois is astonished to encounter the love of his life.
But the fragrant Odette is soon swept... [click here for more] |
Modiphius |
$3.00
|
It is 1943 and the war hangs on a knife edge. Set free by a leading Nazi occultist, an ancient evil stirs in the snowy fastnesses of the Norwegian border, threatening to unleash an ancient artefact which could not only alter the course of the war, but the fate of humanity itself.
Hope though endures, as a band of brave resistance fighters and a crack team of British commandos team up to plunge deep... [click here for more] |
Modiphius |
$4.00
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Adventure, horror and terror in the desert as the occult Nazi war machine awakes an ancient evil in this dark tale of blood, sand and steel
It is 1941 and as Ernst Rommel, the Desert Fox, swings his great armoured right hook to send the British Eighth Army scurrying back toward Egypt, the German crew of Ingrid, a mark IV panzer become lost in the deeper wastes.
After their beloved tank... [click here for more] |
Modiphius |
$3.00
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Alone, Forgotten & Hunted behind Nazi lines the survivors of Charlie Company are trapped in the "Forest of Fear".
Achtung! Cthulhu - Charlie Company : Forest of Fear #1 is the Beta test and first episode in a fun new free photographic web comic featuring miniatures, terrain and Cthluhu horror. Have you ever thought of grabbing all those miniatures and taking some awesome pictures? Well having... [click here for more] |
Modiphius |
FREE
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Welcome to another chilling edition of Halloween Horrors – are you as ready to be terrorised as Achtung! Cthulhu presents its now annual offering of ghosts, ghouls, and things that go bump in the night!?
This year (2023) we’ve a special treat with five FREE fantastically frightening Halloween Horrors from the devious mind of acclaimed horror writer Bill Heron, all... [click here for more] |
Modiphius |
FREE
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Horror at a Stately Home!
Welcome to Section M: Priority Missions, smaller one-shot missions and scenarios to help out the hard-pressed GM. Inside you’ll find a complete mission brief and full colour map to help you run a shorter one-shot session, plus a set of seeds to provide inspiration for further adventures.
Strange events are occurring at Raynethorpe Hall in East Anglia, where Lord Edward... [click here for more] |
Modiphius |
FREE
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Secrets of the Dust is where two epic roleplaying systems collide, combining the spine tingling horrors of Achtung! Cthulhu, with the mind bending adventures of Paolo Parente’s DUST universe, where World War 2 has been unnaturally extended by the introduction of alien technology meaning that in the year 1947, conflict still rages across all corners of the globe.
Secrets of the Dust invites... [click here for more] |
Modiphius |
$5.00
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Two bonus biomes for extra adventures!
It is said it is the journey rather than the destination which is important and Achtung! Cthulhu: Unexplored helped gamemasters fill in the blank spaces which agents often simply “redline” through.
There wasn’t quite enough space in the original print version of Achtung! Cthulhu: Unexplored to... [click here for more] |
Modiphius |
$8.00
|
Welcome to the City of Spies
"I'm involved in a dangerous game, Every other day I change my name, The face is different but the body's the same, Boo, boo, baby! I'm a spy!" - Popular song in wartime Istanbul Istanbul in 1942 is a neutral city, packed with spies. Everyone's here - the Nazis, the Soviets, the Brits and the Yanks, the Japanese and a host of other nations, all waging... [click here for more] |
Modiphius |
$16.99 $14.00
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All Hallow’s Eve, or Halloween, has long been an unquiet time when restless spirits roam abroad, and it is said, the dead walk the Earth. It’s a no-less challenging time in Achtung! Cthulhu’s Secret War, when myriad monsters are unleashed at the witching hour to wreak havoc upon unsuspecting mortal foes.
In this FREE supplement for the Achtung! Cthulhu TTRPG, we present five villainous fiends... [click here for more] |
Modiphius |
FREE
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The Horrors Have Taken Over the Asylum!
Welcome to Section M: Priority Missions, smaller one-shot missions and scenarios to help out the hard-pressed GM. Inside you’ll find a complete mission brief and full colour map to help you run a shorter one-shot session.
Containment Breach has been specially written to accompany the FREE Halloween Horrors III, so download... [click here for more] |
Modiphius |
FREE
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Liberate Europe from the Hellish Hordes!
It is the spring of 1944 and after five years labouring under the yoke of oppression, Europe yearns for liberation. A vast Allied army of personnel and machines is assembled on the south coast of Britain ready to launch the greatest sea and airborne invasion in history.
But the forces of the Axis occult, Black Sun and Nachtwölfe, are not ready to... [click here for more] |
Modiphius |
$21.50
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Welcome to Halloween Horrors III – now more terrifying than ever before! In this eldritch tome of terror you’ll discover five new horrors for the Achtung! Cthulhu RPG which you can either combine with the Containment Breach! scenario or use as standalone NPCs in your campaign.
Anselm Badenhorst, codenamed Hydra is a young... [click here for more] |
Modiphius |
FREE
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Welcome to Section M: Priority Missions, smaller one-shot missions and scenarios to help out the hard-pressed GM. Inside this PDF you’ll find a complete mission brief and full colour map to help you run a shorter one-shot session, plus a set of Adventure Seeds to provide inspiration for further adventures.
In Resurrection Men Allied intelligence has discovered a network of Great War era tunnels... [click here for more] |
Modiphius |
Pay What You Want
|
Welcome to Section M: Priority Missions, smaller one-shot missions and scenarios to help out the hard-pressed GM. Inside this PDF you’ll find a complete mission brief and full colour map to help you run a shorter one-shot session, plus a set of Adventure Seeds to provide inspiration for further adventures.
In Our Lady of the Eternal Sapphire, agents are tasked with investigating a monastery located... [click here for more] |
Modiphius |
Pay What You Want
|
Intrigue at an Ethereal Inn!
Welcome to Section M: Priority Missions, smaller one-shot missions and scenarios to help out the hard-pressed GM. Inside this PDF you’ll find a complete mission brief and full colour map to help you run a shorter one-shot session, plus a set of Adventure Seeds to provide inspiration for further adventures.
In A Pinch of Glamour, agents are dispatched to Elderwood... [click here for more] |
Modiphius |
Pay What You Want
|
Shadow of the Crawling Chaos
Bow down before the Obeah Emperor!
It is the winter of 1941 and a rare treat awaits your agents as they check into a glamorous Caribbean resort for a spot of rest and relaxation.
Yet the demands of the Secret War are ever present and soon they are drawn into accepting a low-risk mission to take custody of a strange artefact. What begins as an apparently simple exchange... [click here for more] |
Modiphius |
$7.50
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Awesome Expeditions Through Uncharted Territory!
It is said it is the journey rather than the destination which is more important and Achtung! Cthulhu: Unexplored fills in the blank spaces on the map, agents often simply “redline” through before their next epic encounter.
No corner of the globe is safe from the unholy alliance of cultists and the Mythos, and agents... [click here for more] |
Modiphius |
$22.00
|
Welcome to war on a new front as Achtung! Cthulhu presents its first digital pack for use with all your favourite virtual table top (VTT) apps.
Inside, you’ll find six starter maps including town, farm, camp, village, tunnels, and pyramid to kick off your adventures in the Secret War.
There’s also 66 unique tokens including a broad range of archetypes for players, plenty of foes... [click here for more] |
Modiphius |
$7.00
|
![Achtung! Cthulhu 2d20 - World Builder's Bundle (PDFs) [BUNDLE]](https://d1vzi28wh99zvq.cloudfront.net/images/4329/425069-thumb140.png)
This special bundle product contains the following titles.
2d20 World Builders Logos and Templates Regular price: $0.00 Bundle price: $0.00 Format: ZIP File This packet includes logos, Word, and InDesign templates for use with the Modiphius 2d20 World Builders program.... 2d20 System Reference Document Regular price: $0.00 Bundle price: $0.00... [click here for more] |
Modiphius |
$41.98 $33.00
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Battle a Living Metal Monstrosity!
After D-Day, Allied forces push onward to victory in continental Europe. Supported by the Office of Strategic Services (OSS) local Resistance groups are desperate for vital equipment and materiel.
To support them the OSS organises Operation Carpetbagger, clandestine night drops by specially adapted B24s which fly at low level across enemy territory.
In... [click here for more] |
Modiphius |
$7.50
|
Dare you face the terror lurking at the heart of Saint Sulac? Join a band of intrepid Allied agents as they investigate the mystery gripping this obscure corner of France. Who are the mysterious Nazi Black Sun? Why have they overrun this sleepy French village? What are they doing with the villagers they imprison in the mysterious ancient chateau at its centre? This FREE 48 Page Quickstart PDF contains:... [click here for more] |
Modiphius |
FREE
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Welcome to the Secret War! In this Achtung! Cthulhu 2d20 starter set, you’ll get your first glimpse into the hidden globe-spanning conflict between the forces of good and evil! Only you and your scrappy band of heroes can defeat the malignant forces of the occult, and the malevolent might of their Mythos masters!
Punch brain-sucking horrors in the tentacles! Ride drilling... [click here for more] |
Modiphius |
$20.00
|
Climb Aboard Hitler’s Steel Behemoth!
It is November 1944 and as winter descends, the Allied advance rumbles to a halt on the borders of Fortress Germany. The US Army and German defenders settle down in a stalemate as they watch each warily across the Siegfried Line.
In just a few short days Operation Watch on the Rhine, or the Battle of the Bulge as history... [click here for more] |
Modiphius |
$10.00
|
This pack contains two x d20s and four x d6 challenge dice.
Coloured black with white numbering.
Each die carries a custom Secret War Squid symbol on one face. ... [click here for more] |
Modiphius |
$20.41
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A strictly limited Collector’s Edition of Achtung! Cthulhu, which uses a custom version of the cinematic 2d20 system to create thrilling scenes, awesome adventures, and epic campaigns.
A complete step-by-step guide to building a Secret War operative which mixes archetype, background and characteristic to create a truly unique agent.
Dedicated advice on the art of gamemastering which includes advanced... [click here for more] |
Modiphius |
$163.26
|
This pack contains two x d20s and four x d6 challenge dice.
Translucent blue crystal look with white numbering.
Each die also carries a custom Secret War Squid symbol on one face. ... [click here for more] |
Modiphius |
$20.41
|
Danger Island!
It is February 1942 and as Japanese forces close in on the British stronghold of Singapore, Section M attempts to evacuate one of its foremost Asian experts, Colonel Horace Charles Farthingdale and his assistant, Ms. Marjory Weathers, plus a valuable archive of papers and artefacts to safety.
But during their flight to Darwin, Australia, their Short Flying Boat is attacked by Japanese... [click here for more] |
Modiphius |
$7.50
|
Eat For Victory!
The Official Achtung! Cthulhu Recipe Book brings the Secret War to your dinner table!
The Section M Mess Officers have painstakingly crafted these delectable treats from across the North African theater and beyond. Featuring such sugary delights as the sweet Moroccan Snake Cake and the dangerous sting of the Scorpion Cocktail! Section M invites all agents... [click here for more] |
Modiphius |
FREE
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Tanks, Tentacles and Terror!
Launch yourself into an epic late Secret War adventure that takes you inside the secret offensive within the Battle of the Bulge!
It is December 1944 and the Allied advances after D-Day come grinding to a halt on the borders of Fortress Germany. As the first snows fall, both sides eye each other warily across the lines, content to rest and recuperate as winter sets in.... [click here for more] |
Modiphius |
$21.00
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NOTE! The Achtung! Cthulhu Player's Guide contains the full core cinematic 2d20 rules for actual play, and you’ll require that to play the game.
Direct the course of the new Secret War!
Welcome to the Secret War in this fast-paced pulp-influenced rollercoaster of an RPG which nimbly mixes the sanity-challenging terror... [click here for more] |
Modiphius |
$19.99
|
This handsome PDF Gamemaster Screen contains four portrait-oriented panels, with stunning artwork from Boris Martsev featuring heroes of the Secret War like Professor Richard Deadman, Ariane Dubois, Sgt Brandon Carter, and an array of evil Black Sun and Nachtwölfe villains they’re battling.
The interior features useful tables and charts from the core rulebook, as well as quick references... [click here for more] |
Modiphius |
$18.00
|
Dive into an Ancient Enigma!
Syria, June 1941: your agents have just completed another mission and are looking forward to some well deserved R&R, but the machinations of the Secret War mean there is no rest for the wicked. They are quickly dispatched to Syria and there reassigned to Habforce, a newly created British army unit sent to battle local Iraqi forces.
Soon they are... [click here for more] |
Modiphius |
$7.50
|
Adventures from the home front to the frozen wastes of the Arctic!
This second mission dossier for Achtung! Cthulhu 2d20 contains the four main mission releases from the second year of the award-winning RPG including Operation Wallace, Operation Marseille, Operation Snowstorm and Operation Fallen Star. Also included are the Halloween Horrors and Malevolent Grove releases,... [click here for more] |
Modiphius |
$32.39
|
Espionage and Otherworldly Adventure!
India, March 1942: Section M learns that a group of Black Sun operatives are travelling in disguise to Karachi India, their ultimate destination and plans unknown. The agents are sent with orders to investigate, figure out the group’s plans, and are granted considerable latitude to decide on the best course of action.
Arriving in Karachi,... [click here for more] |
Modiphius |
$7.50
|
Battle the Black Goat of the Woods!
It is March 1941, and Section M receives reports that a Ju 52 transport plane has been downed near the village of Glavica in Yugoslavia. Planes do crash in this remote mountain range, but reports of strange atmospheric conditions intrigue Section M’s analysts.
When further intelligence is received that the plane was carrying an unusual stele recently unearthed... [click here for more] |
Modiphius |
$8.00
|
Conquer the devils of Elbrus Mountain
It is 1942 and strange reports reach Section M from the Caucasus region, near a little known mountain called Mount Elbrus. The Resistance report sightings of both Nachtwölfe operatives and strange, newly awakened creatures, referred to as devi or “devils” who have kidnapped a number of locals.
Currently in Persia, the agents are... [click here for more] |
Modiphius |
$7.50
|
Explore an Alien Treasure Vault
It is June 1942 and Section M receives intelligence from a trusted source concerning the emergency evacuation of a weather observation facility (WOF) on Olivia Island, an otherwise insignificant rock 650 miles south east of the North Pole.
A coded message indicates that a U-boat recently extracted the entire complement of the German weather observation facility there... [click here for more] |
Modiphius |
$7.00
|
Face the malevolent menace of the Mi-Go!
As summer bleeds into autumn in 1940, the Battle of Britain rages over England’s southern skies. As the RAF’s Spitfires and Hurricanes struggle to contain the might of the Luftwaffe’s daily raids, an unusual discovery at a remote Scottish site catches Section M’s eye.
A valuable cache of Blauer Kristall or Blue Crystal... [click here for more] |
Modiphius |
$7.00
|
Punch Evil in the Tentacles!
Welcome to the Secret War! In Operation Kindling you’ll get your first glimpse into the hidden globe-spanning conflict between the forces of good and evil. Only you and your scrappy band of heroes can defeat the malignant forces of the occult, and the malevolent might of their Mythos masters!
In this standalone mission for use with the new free Basic Rules, your agents... [click here for more] |
Modiphius |
FREE
|
Survive the Night Time Terrors of Occupied France!
Having received intelligence from its Maquis allies in Southern France, Section M drops a team of agents into Vichy-controlled Marseille in the summer of 1941 to disrupt a powerful Black Sun ritual linked to the Dreamlands.
While the mission is a success, at least partially, the agents suddenly find their Resistance contact gone, their escape... [click here for more] |
Modiphius |
$7.00
|
Operation Snowstorm
When Outpost Epsilon-3, a remote research post in British Columbia, goes radio silent for over a week, Majestic’s suspicions are aroused. An experienced team of agents is quickly delivered to the nearby snowbound town of Dunley, and ordered to investigate.
As they navigate the hazardous path to the base, their progress is made more difficult by a dangerous blizzard, considerable... [click here for more] |
Modiphius |
$7.00 $5.25
|
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