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Tabletop Game / Delta Green

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Welcome to your new job, rookie.

We travel light, we probe deep, and we strike hard. We're Delta Green, and we may be outlaws and cowboys and fools, but we've kept this green ball of shit safe and sound for longer than most people have been alive.
Reginald Fairfield

Choose federal law enforcement. Choose the military. Choose NASA or the CDC. Choose lying to your superiors. Choose to ruin your career. Choose no friends. Choose divorce. Choose life through the bottom of a bottle. Choose destroying evidence and executing innocent people because they know too fucking much. Choose black fatigues and matching gas masks. Choose an MP5 stolen from the CIA loaded with Glasers, with a wide range of fucking attachments. Choose blazing away at mind numbing, sanity crushing things from beyond the stars, wondering whether you'd be better off stuffing the barrel in your own mouth. Choose The King in Yellow and waking up wondering who you are. Choose a 9mm retirement plan. Choose going out with a bang at the end of it all, PGP encrypting your last message down a securely laid cable as an NRO Delta wetworks squad busts through your door. Choose one last Night at the Opera. Choose Delta Green.

An acclaimed sourcebook for the famous Call of Cthulhu tabletop roleplaying game, which would later become its own standalone game. Delta Green tells the story of the eponymous organization, a secret United States agency born of the Federal raid on Innsmouth, Massachusetts in 1929 and tasked to protect the country from paranormal threats. After an operation gone horribly wrong in Cambodia in the '60s, Delta Green was officially shut down — but its leaders, aware of the things lurking in the cracks of reality, continued the fight illegally, stealing resources from the government, carefully picking new members from the federal agents community, and generally acting like rightfully pissed off Cowboy Cops in their battle against the supernatural. It would not be until the 1994 assassination of Major General Reginald Fairfield, Delta Green's de facto leader, than DG would take up their current incarnation: a deeply hidden conspiracy in the labyrinthine world of the United States federal agencies, structured in semi-independent cells.


The new Delta Green was released in 2016 and advanced the plot. After a series of operations against the Mi-Go and The Greys, Delta Green delivers a huge blow on MAJESTIC-12, in 2001 the 9/11 attacks results in a total reorganization of the US intelligence community. Delta Green is reactivated, brought back into government fold, given a proper budget and using The War on Terror as their new cover, this new organization is nicknamed "The Program". Some old members refused to go official and decided to keep the old group running, nicknamed "The Outlaws"; this group acts more like the old Delta Green, as a illegal and unauthorized conspiracy.

Delta Green is heavily based on classical conspiracy/UFO theories, meshing them with the Cthulhu Mythos milieu: DG themselves are a spin on The Men in Black, but there are also other shadow agencies involved, including the now famous Majestic 12 group that deals with The Greys (actually Mi-Go in disguise). Other players are the Karotechia, occultist Nazis serving an "ascended" Hitler; the Fate, a criminal organization that makes heavy use of Mythos creatures and spells for fun and profit; SaucerWatch, a naïve yet well-funded UFO research group that may be closer to the truth than they know; and the Cult of Transcendence, among others.


The tone of the book is even bleaker than standard CoC: where the basic game has investigators struggling against Mythos creatures and the cultists that serve them (and DG does include its fair share of battle against these forces) the primary adversaries are evil and/or utterly amoral humans that (attempt to) use the forces of the Mythos for their own benefit, and are becoming as amoral as them. The Stars are Coming Right, and there may not be anything that Delta Green, or anyone else can do about it...

But it doesn't mean they have to make things easy for them.

In late 2015, a Kickstarter was held for a new series of Delta Green sourcebooks. It reached 10 times its expected goal for a total of $300,000 received, and new material has been released since 2016. The creators have released a PDF copy of a quick start guide, Need to Know for free on their official website. In 2018 Pelgrane Press of Trail of Cthulhu, 13th Age and The Esoterrorists fame released a prequel named The Fall of DELTA GREEN, using Pelgrane's own GUMSHOE system and focused on the The '60s and The Vietnam War up to the fateful operation in Cambodia that lead to the fall of DELTA GREEN.

For the other, slightly less depressing, slightly funnier Lovecraft-meets-spy-fiction setting, see The Laundry Files and it's own RPG which also uses the Basic Role-Playing system, The Laundry. Other spy/Lovecraft settings for CoC include Achtung Cthulhu from Modiphius Entertainment and World War Cthulhu from Cubicle 7.

This game provides examples of:

  • The '90s: The setting of the original sourcebook.
  • Adaptation Deviation: Delta Green takes a markedly different approach to Hastur and the King in Yellow from that of August Derleth and Call of Cthulhu. John Scott Tynes suggests that their version of Hastur as a slug god doesn't really do justice to the source material. Instead, Hastur is reimagined as the sublimely subtle, insidious force of entropy, the cosmic principle which destroys order. Because this destruction happens at every level from the atomic to the cosmic, Hastur has influence at all levels of reality. The King in Yellow is an avatar that manifests where Hastur's field intensity heightens: vice and melancholy, the social entropy disintegrating human order.
  • Addictive Magic: Using too much Hypergeometry will lead to mental disorders and addiction. It's one of the plans of the Mi-Go to enslave mankind.
  • Affably Evil: There is something in Joe Kátl's attitude that makes him naturally personable even among humans, something not commonly found among the Deep One hybrids of Black Cod Island. As such, he has found himself in contact with the outside world for many years, acting as liaison for Black Cod business interests on the mainland.
  • Alien Abduction: Much of the mi-go's work in their Grey guises involves conducting experiments in human intuition under the cover of UFO abductions.
  • Aliens and Monsters: And not all of them are betentacled.
  • All Myths Are True: Several Great Old Ones might have been the inspiration for real-life mythological deities, for instance Cthulhu may have been worshiped or reviled as Tiamat, Vritra, or Typhon, amongst others.
    • The highest-ranking members of the Sowers, a hyper-conservative Christian sect founded in the 21st century, believe they can absolve their sins by ritualistically murdering the demon Azazel, who comes back to die again as a scapegoat. "Azazel's" character description immediately deflates this, as he is really yet another mask of Nyarlathotep. Whether he appeared in the guise of Azazel throughout time, or if he's only started to manifest to manipulate the Sowers is left open.
  • Amoral Attorney: Martin Kíldaaw was groomed from an early age to become an interface between humans and the Black Cod Deep One hybrids. After graduating from Stanford Law School in 1981, he has become a relentless attorney who uses the humans' laws against themselves and works tirelessly to protect the Black Cod's interests from encroachment.
  • Ancient Conspiracy:
  • Area 51: One of Majestic-12's facilities is in Area 51, although is not Area 51 itself.
  • Argentina Is Nazi-Land: The Karotechia, Hitler's occult division whose remnants are hiding in the Amazon.
  • Artifact Collection Agency: Delta Green (the organization) zig zags this trope. After the Innsmouth raid, the group adopted a "burn everything and dynamite what can't be burned" policy. This led to many Delta Green scientists to leave the group and join the then recently-created MAJESTIC-12 — who otherwise plays the trope straight and tries to weaponize and exploit anything they find. This attitude became looser after DG was originally disbanded and some agents don't see the problem in collecting material they find relevant and dropping at the "Green Boxes" for future use.
  • Artificial Gravity: Within the spacecraft recovered at Roswell is a sigil that seems to project gravity — with no apparent counter-force — in a way that human science had not even the slightest idea how to begin to understand.
  • Ascend to a Higher Plane of Existence: Through A Glass Darkly features a machine that can allow a person to do this.
    • The spell Consciousness Expansion.
  • Aliens in Cardiff: The nations that have active anti-occult organizations are the United States, Russia, United Kingdom and... Canada. Canada's organization is directly stated to predate all the others, dating back to 1903 (a full 10 years before Russia, the next oldest). Granted, their scope is relatively more focused than the others.
  • All Therapists Are Muggles: Agents can go to the therapist after an operation to attempt to recover Sanity points. There are two choices: Get treatment but lie about the unnatural, which is a more safe option although it gives less SAN points back, or tell the horrible truth to the therapist. However, if you succeed this will be a Subverted Trope as the therapist will not only believe you, he himself will lose sanity points.
  • And I Must Scream: Eyes Only has a chapter, Machinations of the Mi-Go, which gives rules to play as someone the Mi-Go have captured and extracted the brain from.
  • Asshole Victim: Among the millions killed and tens of millions imprisoned by Mao Zedong in the Cultural Revolution were numerous servants of the Kuen-Yuin, forcing them to flee China in 1979.
  • Badass Bookworm: Joseph Camp: University professor, World War 2 veteran, OSS spy, second-in-command of the original Delta Green and Agent ALPHONSE.
  • Badass Normal: Many NPCs, such as the late Major General Fairfield, Captain Forrest James or MJ-12's Adolph Lepus. The PCs can also become this.
  • Balance Buff: By and large, creatures in Delta Green and The Fall of DELTA GREEN have higher statistics than in vanilla Call of Cthulhu and Trail of Cthulhu, because the Agents likely have access to heavier weapons than standard investigators.
  • Benevolent Conspiracy: Delta Green is an illegal conspiracy inside the US government that investigate and fights threats from the Cthulhu Mythos and other secret paranormal groups. While DG's goals are certainly benevolent, their methods are "do what is necessary".
  • Been There, Shaped History:
    • In 1969, Delta Green organizes an unsanctioned raid on Cambodia, where 300 Marines and DELTA GREEN agents paradrop on Cambodia attempting to destroy the Đạo Sẫm and prevent them from summoning a Great Old One. The operation fails spectacularly. When the US and South Vietnam invade Cambodia seven months later, they meet stiff resistance from well-prepared Viet Cong and Khmer Rouge, as the Đạo Sẫm were disguised as North Vietnamese and Khmer Rouge units. This serves as the final nail on the coffin for the original Delta Green.
    • Adolph Lepus (future NRO Delta commander) and Donald Poe (future Agent CHARLIE and later would take the mantle of Agent ALPHONSE) participated in Operation OBSIDIAN and ended up as one of the few survivors. They were also the ones that killed Colonel Satchel Wade and his mistress as a revenge for organizing the mission.
    • The Fall of DELTA GREEN implies that the legendary MACV-SOG might have been inspired by Delta Green.
    DELTA GREEN uses a similar principle, combining operatives from several different agencies and units both civilian and military. The two share so many similarities, including Top Secret classification and deniability, that it’s quite possible that the Pentagon is deliberately attempting to replicate DELTA GREEN in a war-fighting context.
    • In 1993 Delta Green discovered information about what they thought it was a mythos cult in Waco, Texas. The agents organize the ATF and FBI to raid the cult's compound resulting in the now-infamous Waco Siege. They were wrong, there was nothing particularly unnatural on Waco. 76 people died due Delta Green's faulty intel.
    • During the Katrina hurricane, there were a lot of reports of gunfire shots in New Orleans after the levees broke. Much of those were agents part of Delta Green death squads sent to hunt down and execute Ghouls of the DeMonte clan.
    • In the scenario Khali Gati it is implied that the god-priest that sleeps in the mountain around Khali Gati inspired the pre-islamic Afghan god Zun, or at least that's what the village elder tells you.
    • The Kuen-Yuin has manipulated Chinese history since the times of the Yellow Emperor. Choosing the next imperial dynasty, manipulating court politics in their favor by magic or infiltrated eunuchs, and causing dynasty changes when the imperial family didn't favored them no more. During times of dynastical changes and warlord eras they took it to cause as much destruction, sadism and pain as possible. Ironically, after the Communist revolution Mao declared "magic" as supersticious and counter-revolutionary, the Kuen-Yuin were purged by the Communist government: their ancient monasteries bombed and members mass executed, forcing them into exile.
  • Beethoven Was an Alien Spy:
    • The semi-historical Yellow Emperor of China, also known as the Yellow Dragon, may refer to some antediluvian immanentisation of a Great Old One.
    • The Genyosha is based on the real-life Black Ocean Society, Japanese secret society based on ultranationalism. In Delta Green they are an occultist organization that acts as the Japanese Empire's unnoficial Ghostapo and had some encounters with Delta Green during WW2.
    • The historical Skoptsi were a underground heretical Christian sect in the Russian Empire which preached self-castration in order to prevent sexual lust, having as much 100,000 members in the early 20th century, but disappearing after heavy presecution from both Imperial and Soviet governments. In Delta Green however, they are still active and actually worship Shub-Niggurath.
  • Best Served Cold: Sang Eh-Poh Berg grew up spinning dark fantasies of bloody, intricate revenge against those who slighted him, often delivering his vengeance years after the slight when the opportunity presented itself.
  • Bigfoot, Sasquatch and Yeti: The yeti is a relict voorii population who have survived in the Himalayas since the Pleistocene. The metoh-kangmi, or abominable snowman, is a mi-go construct based on them.
  • The Big Rotten Apple: New York used to be considered enemy territory for Delta Green up until 2001. The Fate controlled NYC's organized crime using sorcery and supernatural powers, The Keepers of the Faith is a clan of Ghouls based in Manhattan that existed since the 17th century (Although with an uneasy truce with DG), and The Cult of Transcendence had major activities in New York. There is also many other scenarios set in New York as well.
  • Book Burning: In 1943, Delta Green's Operation TARQUIN destroyed the Great Library at Pnakotis to keep knowledge of the future out of enemy hands. A similar fate befell the Yithian library called Thule by the Karotechia teams searching for it.
  • Black Helicopter: Operated by NRO Delta.
  • Black Site: The setting is filled with these. Operated from Majestic-12 to Delta Green. Ranging from secret laboratories, secret prisons to Secret Government Warehouse.
  • Brain Food: Agent NANCY is DG's foremost forensic analyst and autopsy expert. She is, in fact, a ghoul, and can obtain knowledge from dead bodies by devouring their brains. All ghouls apparently have this ability.
  • Broad Strokes: According to the official site, nothing in Delta Green is canon. Instead, they encourage players to use whatever works for their game. With regards to the original Call of Cthulhu RPG which DG was an expansion for, they change some facets of the gods and monsters. Most notably, Hastur is dramatically different from the more Derleth-inspired Call of Cthulhu version. Overall, Delta Green considers Lovecraft's works "canon", and the stories of other Mythos writers depending on the needs of the plot.
  • Calling the Cops on the FBI: Player characters are not above the law, and oftentimes have to deliberately break it. As such, they might have to contend with regular law enforcement—who can be anything from in the pocket of the opposition to regular, by-the-book police officers just doing their job.
  • Canon Discontinuity: When the original Convergence was published in 1992 on The Unspeakable Oath, it was followed by a sequel named "Transference", published on the Cyberpunk 2020 fanzine Interface. Featuring Argentianian refugee scientists on Antarctica making a pact with the Mi-Go, infecting themselves with the protomatter and creating a Mega-Corp, with the players uncovering their dark secrets. The scenario has been completely disregarded in later canon.
  • Canon Welding: Between Robert W. Chambers' "The Maker of Moons", Colin Wilson's "The Return of the Lloigor", The Cruel Empire of Tsan-Chan, a monograph for Call of Cthulhu, and Lovecraft's The Shadow Out of Time and The Call of Cthulhu. The Kuen-Yuin, a cabal of Chinese sorcerers from "The Maker of Moons", are described as descendants of the Priest-Kings of Mu servants of the Lloigor (which are equated with the Xin from "The Maker of Moons"), the “deathless ones in the mountains of China” that control the worldwide cult of Cthulhu in "The Call of Cthulhu", and the small cadre of immortal sorcerers who rule over the Cruel Empire of Tsan-Chan (mentioned in a line of "The Shadow Out Of Time"), which will arise 5000 years in the future, after Cthulhu woke and humans went insane ("Dreamers"), finally casting good and evil aside and becoming like the Great Old Ones: shouting and reveling in a holocaust of ecstasy. Some material even suggest this future is incompatible and competing with the Yithian's plan to wipe out mankind as seen in "The Shadow Out Of Time".
  • CIA Evil, FBI Good: An interesting example of FBI and CIA good... and NRO evil. note  Majestic-12 is partially inside the NRO and uses their assets for their own goals, including "section DELTA", a section of the NRO composed by The Men in Black that hide the existence of aliens and the paranormal, they frequently use burglary, bugging, bribery, blackmail, are not afraid to use lethal force (Although they try to avoid as the first option for pragmatic reasons) and even sometimes act as a local support team for the greys. Otherwise subverted, as the Player Characters can be both FBI and CIA, and both FBI and CIA are portrayed as shady organizations. Player Character can even be NRO employees, although not the ones in or with access to Majestic-12 operations.
  • Church of Happyology: The Enolsis Foundation. In this setting, of course it has a horrible secret.
  • Code Name: Every DG agent has one. Also, there are the MJ-12 projects, and the various classified documents used throughout the game.
  • Conspiracy Kitchen Sink: The original premise of Delta Green was a Conspiracy Kitchen Sink mixed with the Cthulhu Mythos: The Men in Black (Majestic-12) have a secret alliance with The Greys who are puppets of the Mi-Go, Occultist Nazis hiding in South America secretly taking back their power back through the forces of the mythos, The Illuminati is a cult of Nyarlathotep, the CIA drug traffic program in Southeast Asia and Central America involved the Tcho-Tchos and their own Air America-like covert company "Tiger Transit", the Philadeplhia Experiment was a failed Delta Green experiment and the historical Skoptsi cult was not an heretical sect of Orthodox Christianity but a pagan cult of Shub-Niggurath. The later editions dropped the "All conspiracy theories are true" as they lost their place in the 21st century zeitgeist and the popular conspiracy theories are... let's just say they are quite controversial and offensive. The new edition instead creates new conspiracies based on the current zeitgeist but not the conspiracies from modern zeitgeist.
  • Conspiracy Theorist: Entire groups of them that keep appearing in Delta Green operations as they are closer to the truth then they imagine: Saucerwatch, Phenomen-X, the Dream Syndicate and the Human-Extraterrestrial Liberation Project (Or H.E.L.P for short). The latter is a Cult of Trascendence cover under the See of Hate, its purpose is to use UFO conspiracy theories to promote paranoia (fear of "Grey" invaders) and racism (worship of "Nordic aliens" as saviors).
  • Conveniently Unverifiable Cover Story: How The Program maintains its agents' covers. They are designated into mundane counter-terrorist task-forces with open-ended tasks, the only people that have clearance files of these task-forces are inside The Program, this makes possible to group a bunch of agents, give them cover and resources, and make sure that when people ask questions they can just say "It's classified".
  • Corrupt Corporate Executive: The board of March Technologies is partially formed by ex-MAJESTIC leadership.
  • The Corrupter: Too many to count; between bog standard governmental malfeasance, the nihilistic decay of the Cthulhu Mythos, and the interplay of the two. Notably, The Labyrinth features four potential allies—and the player agents can serve as this for them, causing them all to slide into self-destruction by simply using them and the resources they offer.
  • Cosmic Horror Story: Even without all the human cultists, sorcerers and others dealing with Mythos forces, humanity would be in pretty deep trouble. With them around, though, they're utterly screwed.
  • Covert Group with Mundane Front: The "EPIC" in M-EPIC stands for Environment Policy Impact Commission and it's part of the Department of Environment of Canada. The group uses this cover so they can easily secure any rubber stamps from the Parliament without any questions.
  • Clarke's Third Law: Delta Green calls magic Hypergeometry, due it's frequent association with lines, shapes, numbers, position and mathematics. The game gives example on how a tribal shaman drawing a mandala in sand or a scientist pointing lasers in the sky to invoke something begin similar things with a similar "math", and the rituals are described to be "tapping" in an infinite energy grid beyond the four dimensions. Hypergeometry is implied to be the "technology" used by advanced alien and unearthly species such as the Elder Things, Mi-Go and the Great Race of Yith, and stated that this knowledgwas passed down to humanity by the Great Old Ones.
  • Crapsack World: The world is full of Lovecraftian darkness. And doomed.
  • Dark Is Not Evil: Ghouls have a bit of that vibe going on, depending on the particular group or individual. Of course, players shouldn't rely on it too much unless they want to become lunch.
  • Darker and Edgier: The Gothic translation of the Al Azif, known as Dauthsnamjansboka, was much bleaker and less allusive than other versions.
  • Deadline News: Phenomen-X, the basic cable conspiracy investigation show, can suffer this. DG is perfectly willing to treat them as canaries in the coal mines to see if the alleged supernatural is actually a threat.
  • Deadly Euphemism: The targets of the PISCES elite's bimonthly 'fox hunts' are people taken from prisons, asylums and homeless shelters. Their disappearances are covered up as deaths, escapes, or they are simply forgotten as these victims are chosen specifically because they won't be missed. They are subjected to the terror of the hunt and the horrors of what happens upon capture.
  • Demoted to Extra: The Cult of Trascendence had very few mentions on the new edition's Handler's Guide, and where they are mentioned is that they were destroyed after too much infighting.
  • Did You Just Flip Off Cthulhu?: It can be argued that this is the best DG can hope to do.
  • Disposing of a Body: Delta Green operations will usually leave bodies behind, and often it's better getting rid of them than explaining to the authorities. The "Tradecraft" chapter on the Agent's Handbook has a quick guide on the rules for different methods of getting rid out of of bodies, from dissolving in a polypropylene barrel to dumping the body in the water.
  • Does Not Like Magic: The former commando SS-Oberstürmbannführer Otto Skorzeny served as a link between the last three Karotechia members, but considered the Karotechia to be Heinrich Himmler's occult idiocy and only knew the three as fellow war criminals.
  • Double Reverse Quadruple Agent: Agent Renko from The Labyrinth might be this, in theory he is a GRU SV-8 agent spying on Delta Green, but at the same time he actively helps the PCs and he is shown to be dissatisfied with his work at GRU. In reality, he is whatever the Handler wants him to be: A Mole trying to infiltrate and spread disinformation inside Delta Green, or maybe he is trying to defect to Delta Green and gives intel slowly to not be targeted by GRU, or maybe he is really trying to infiltrate but is Becoming the Mask, or maybe he's The Chessmaster and Double Reverse Quadruple Agent, playing all sides at the same time.
  • Downer Ending: Delta Green fights the fires it sees, but it's all going downhill. Some modern CoC material hints at possible evacuation to space habitats or the Dreamlands, but nothing positive or canonical.
    • The Delta Green short story "After Math" details the end of the world through the eyes of an elderly Delta Green agent.
  • Dragon with an Agenda: On his multiple appearances, Adolph Lepus shows that he has his own agenda that goes beyond the Steering Committee. He ends up mudering Justin Kroft, MJ-12's director, while attempting a coup on Majestic's leadership after the Greys cease contact.
  • Dreaming of Times Gone By: After flight Malaysian Airlines Flight 370 disappeared in the Pacific, some people started to have shared dreams inside the airplane, this led the creation of the internet forum "The Dream Syndicate", where people started to report and discuss similar dreams such as daily life of The Romanovs, images inside an underground city of the Great Race of Yith and what might a cavewoman getting attacked. Some of the people who experienced Fight 370 dreams also dream of the aircraft's wreckage strewn about a great undersea city (presumably R'lyeh), where they hear unusual words they cannot remember when they wake.
  • Elaborate Underground Base:
    • COUNTRY CLUB, the MJ-12 headquarters. A massive underground facility that can only be accessed by air, containing MJ12's Project AQUARIUS (MJ-1), databases, the conference facilities for the Steering Comittee, facilities for communication with the Greys, and the original copy of the The Accord.
    • ICE CAVE, MJ-12's xenobiology research laboratory is a secret vault constructed under the Los Alamos National Laboratory. Constructed as the Atomic Energy Commission's YY-II reserve facility, it was first used by Delta Green to host the Deep One survivors of the Innsmouth raid and later Majestic-12 took control of the facility and used to store the Greys from Roswell.
  • Eldritch Abomination: Naturally. The "definition" of Great Old Ones is as follows:
    "The Great Old Ones came from elsewhere and fought over the Earth billions of years before man, and now sleep in some infernal cycle of time. Life on Earth is the result of biological runoff; a fungus borne of alien shit, that has clung and crawled and evolved as these giants sleep. Their science is our magic, and remnants of their civilizations spring up to infect our world. Soon, they will wake and destroy humanity. NOTHING can stop this."
    • The handler's guide gives statistics for a wide variety of mythos beasts. When it comes to discussing the Great Old Ones, the guide encourages keepers to ignore the guidelines it sets forth and although there maybe be ways for particularly lucky investigators to eke out a victory, they are ultimately unbeatable.
    "Great Old Ones do not have hit points. They are immortal, ultimately invulnerable, and completely beyond human understanding. The correct Handler response to “Can a Great Old One do X?” is “Yes, of course it can. They are focused omnipotence".
  • Eldritch Location:
    • The city of Carcosa. When places and people are exposed to the corrupting force of Hastur, it will infect our reality and start pulling it to Carcosa. The city itself looks like a mish-mash of multiple cities and civilizations from different time periods (especially Victorian and Edwardian) built on the top of another, with a white sky with twin-suns and black stars, while the city is eerie empty and devoid of population. The city operates in Alien Geometries and dreamlike logic, governed by the mysterious figure of The King in Yellow. Once in Carcosa, thoughts, dreams note  ideas and feelings start to become real, while humans are enveloped and digested by Carcosa until only their thoughts and perceptions remain, forever an echo in Carcosa.
    • The Vagnoptus Manor, the headquarters of the Cult of Transcendence. From outside it looks like an abandoned mansion, you can find it on a map located just outside Stockholm, and also its property or tax records too. However, the architecture of the manor is formed with Alien Geometries, walking through the halls of the Manor in the right way will eventually result in ending in the "Nightmare mansion", an alternate version of the mansion (or it's still is the same mansion, maybe) that is in orbit of the court of Azathoth.
  • Elites Are More Glamorous: The Special Operator profession. It is considered one of the "core" professionsnote , while the Soldier/Marine is considered an "additional" profession. Fridge Brilliance kicks in when you realize how useful a special forces operator is for a Delta Green team then a normal Soldier/Marine, not only they can shoot and fight better, most of their training includes higly specialized stuff like Unconventional Warfare and Counterterrorism, and how some units have training to covertly act in foreign soil for months without support, such as the Green Berets or the CIA SAD/SOG. The Special Operator includes members of the USSOCOM, FBI Hostage Rescue Team and CIA Paramilitary. In Fall of DELTA GREEN, most of those organizations were founded over the course of the decade or not at all yet. Special Forces has lapsed into the Military Service category for this game, but gives more bonuses then an active duty Soldier or Marine.
  • Elite Mooks: "NRO section Delta", the main arm of Majestic's Project GARNET (MJ-2). A secret unit inside the National Reconnaissance Office formed by CIA, NSA, DIA and SOCOM operators which act as Majestic's cleanup, coverup, security, counterintelligence and wetwork division (Although they are intentionally fed layers of misinformation to not discover what Majestic is really working on). MAJESTIC even started a prototype Super Soldier program with NRO-Delta agents.
    • Operation BLUE FLY, the primary operation of Project MOON DUST (MJ-5). The unit is under the cover of the USAF’s Foreign Technology Recovery Unit and are formed by experienced USAF Pararescue (PJs) special operators. In practice they serve as MAJESTIC's military division, eliminating extraterrestrial and paranormal threats with extreme prejudice. When The Program was formed, BLUE FLY became Operation CORAL NOMAD, which act as their "asset recovery" division, flying and transporting unnatural artifacts, technology, and specimens from case officers, or more rarely, from Agents in the field.
  • Endangering News Broadcast: The massive leaks by Manning in 2010 and Snowden in 2013 included communications by agents of the Program. Others wound up online in 2007. The agents who sent them were frozen out of the Program immediately after the leaks, had all ties to other personnel severed, and were warned explicitly to pretend insanity, drug abuse, or some terrible crime if needed to halt an investigation. So far, no investigators or journalists have pieced the data together. If they do, it may fall to some active team to make sure the damage is contained.
  • The End of the World as We Know It: In 1945, with the Reich's strength spent, Hitler's final order to the Karotechia was to summon Azathoth and destroy the victorious Allies with the entire planet. For three months in 1945, Delta Green fought the last battle of the European war against the Karotechia: Operation LUNACY. Aktion GÖTTERDÄMMERUNG was ruined in a series of covert actions that cost the lives of many Agents and even more Karotechia members.
  • Enemy Civil War:
    • MAJESTIC's Not-So-Omniscient Council of Bickering is divided between two factions: One which seeks to mantain the Accord with the Greys, and another which seeks to expose the Grey's true intention's and end The Accord. The pro-Accord faction starts with a huge political power — due the Grey's providing a report of every single weapon of pro-soviet forces, which basically won the Cold War for America, and also richer due March Tech selling advanced Grey technology to the Military-Intelligence industry. When Delta Green strikes a series of successful operations against the Mi-Go and Majestic's operations, the Greys cease contact with MJ-12, NRO Delta commander Adolph Lepus, along with the pro-Accord faction attempts a coup against Director Justin Kroft (who is killed by Lepus), while a counter-coup is launched by the anti-Grey side led by Forrest James (AKA Agent DARREN) with support of Operation BLUE FLY and Delta Green, successfuly taking over MAJESTIC-12 and using The War on Terror and NSA's influence to restabilish DELTA GREEN.
    • The serpentfolk empire ended when they turned upon one another and perished in some self-generated apocalypse. Even today, they are as likely to kill each other as to kill humans.
    • The Cult of Transcendence had the prerequisites for this: the Trascendent Masters are utterly disconnected from human affairs, the four Bishops (and their Accolytes) that control the four Sees are fighting between eachother engaged in "petty" empire building, and the four Sees themselves are formed by a patchwork of numerous sub-groups that don't have much in common. By 2012, one of the Bishops mysteriously disappears in a ritual of communion with Azathoth and the other remaining went into each others throats. The cult shattered and the individual elements all scattered and became indepedent from the central leadership.
  • Enemy Mine: In a singular moment of cooperation, on 24 August 2001, elements of MAJESTIC, Delta Green and GRU SV-8 coordinated operations to uproot and destroy the Karotechia, from its South American headquarters to its sorcerers and reanimated officers active around the world.
    • In Operation SIC SEMPER TYRANNIS, to destroy SMERSH's experiments to continue Karotechia's "ressurected casualties" program and prolong Stalin's lifespan, the strike team was suddenly helped by GRU SV-8, who helped them by smuggling the strike team into the island where the facilities were and finished off the survivors after DG was done, as they wanted to destroy their political enemy SMERSH and end the experiments which they deemed a threat to the Soviet Union.
  • Evil, Inc.: New Life Fertility is a private company that provides very expensive but completely infallible fertility services to the global elite—with the helping hand of Lac Maternum, or the milk of Shub-Niggurath. The highest leaders, and the oldest New Life children, are devout worshippers of Shub-Niggurath.
  • The Exile: In 1555, a community of Deep One hybrids fled their village of Cha'atl in Haida Gwaii when other tribes descended upon them to destroy their evil influence, and came to Black Cod Island looking for sanctuary. They never lost sight of the reason they had been banished to Black Cod Island, and the lesson of the Cha'atl massacre remains clear in their minds.
  • Face Stealer: Multiple examples. Ghouls are particularly inclined to do this.
    • The Karotechia's Reinhard Galt also has this ability, learned from the Anziques.
    • The PCs can become this if they learn the spell Changeling Feast, the problem is that you first have to eat the person you are impersonating.
  • Fantastic Drug: The Tcho-Tcho have the Liao, or "Black Lotus", a flower similar to opium poppy with supernatural effects used in some Tcho-Tcho religious rituals, there's also a diluted and refined version of the Liao called "Reverb", sold as a street drug. Finally, the Tcho-Tchos also make "Coca Loca", cocaine mixed with the milk of Shub-Niggurath.
  • Flying Saucer: Some mi-go spacecraft are constructed saucers meant to lure MAJESTIC into further excesses.
  • Formulaic Magic: Hypergeometry is this mixed with Geometric Magic. Magic at its very core is the mathematic and geometrical manipulation of reality, while humans from different add their own cultural biases around the rituals to perform magic, two widly different cultures can have a ritual with the same effects since their "core" is the same. As hypergeometry is strongly linked to math, some spells require the user to have a high level of skill in mathematics. Many "sorcerers" are employed by the NSA since the organization is the world's largest employer of mathematicians.
  • For the Evulz: The primary motivation of the Cult of Transcendence is to "uplift" humanity in order to transform it into a Mythos race. They do this by creating numerous cults and secret societies in order to corrupt society to destroy it morally, spiritually, and physically.
  • Friend or Foe: Countdown has an in-universe incident where British SAS commandos equipped for an anti-terrorist operation in British cities were seen to be attacking the outskirts of the American Embassy. When the firefight died down, the PIRA was made the patsy. Subsequent investigation by DG shows that they've become more aware of the Shan controlling aspects of PISCES and British government, military and intelligence. Their risk assessment suggests to avoid making further contact unless necessary in order to avoid having their rank and file being infiltrated by the same alien species.
  • From Camouflage to Criminal:
    • Spider J in Reverberations is a former U.S Army soldier and Academi contractor turned Reverb dealer.
    • The real-life Los Zetas cartel serves as a secondary antagonist in a chapter of Targets of Opportunity detailing the Children of the Worm Cult. The criminal organization began when a group of Mexican Special Forces defected to serve as cartel muscle—an NPC in the scenario is one such member.
  • General Ripper: Satchel Wade is a Colonel but this trope still applies. He is ardently anti-unnatural, advocating constant use of military action against it, he wishes to enter in Delta Green's ExComm, but since he lacks the bureaucratic connections, he instead plans and carries out mission after mission in Southeast Asia, hoping to earn a spot by sheer guts and hard work. Unfortunately for Delta Green, his ambitions leave him open for external influences - such as his Khmer mistress Li - and he starts to use any means necessary, which in this case means the unnatural and even a tribe of Tcho-Tchos, turning him into a Colonel Kurtz Expy. His recklessness and misguided ambition is what lead to him organizing Operation OBSIDIAN, ending up into the fall of Delta Green.
  • Generic Ethnic Crime Gang: Tong Shukoran, the Tcho-Tcho mafia.
  • Geometric Magic: Delta Green's magic system is called "Hypergeometry" due it's frequent association with lines, shapes, numbers, position and mathematics. "Magic" is the mathematical and geometrical manipulation of reality and other dimensions
  • Generic Doomsday Villain: The Cult of Transcendence come close to this trope. Their basic goal is to 'uplift' humanity into a proper Mythos race, an existence without concern for order, compassion, pain or pleasure. They do this by subtly sabotaging human society and corrupting people anyway they can. They're oddly philosophical about it, too. Deconstruction or Reconstruction? Either way, their entry lampshades the fact that their basic lack of humanity means they act like this trope, and do not care if they win or lose, which is what makes them so dangerous.
    • In the original incarnation of The Hastur Mythos, the King in Yellow is portrayed as this—it's a harbinger of Carcosa, a world of chaos and madness, but whether it has any plan or even sapience of its own is left unclear.
  • Genre Mashup: The Fall of DELTA GREEN is a conspiracy thriller, Vietnam war story and cosmic horror mashup.
  • Ghostapo:
    • The Karotechia is a special department in the Nazi Party answerable only to the Reichsführer-SS, founded by Heinrich Himmler to research and exploit the occult for military purposes. What remains of it is an elderly worshipper of Yog-Sothoth, an undead Mad Scientist Necromancer mixing the legacies of both Herbert West and Dr Muñoz from Cool Air, a humanitarian übermensch who gets immortality and invincibility in the bargain, and the "ascended" spirit of Adolf Hitler (at least, they think it's Hitler...) The real Hitler ordered the former Karotechia to summon Azathoth, in an attempted Taking You with Me against the entire world.
    • The Genyosha, the Japanese counterpart of the Karotechia, is a mix between political party, secret society, and also an unofficial espionage arm of the Japanese military.
  • Go Mad from the Revelation: Let's just say that the suicide rate in Delta Green is above average.
  • The Government:
    • Many real-life US Federal agencies are provided for PCs to be part of, from familiar ones like the FBI and the DEA to the more obscure like FinCEN or the National Security Council. Countdown extends the roster to a number of foreign agencies.
    • The Complex introduces the largest and notable private contractors for the US government, which became very common in the years after 9/11, some include: The Costellis Group, Booz-Allen-Hamilton, the CACI, RAND Corporation and Lockheed-Martin.
  • Government Agency of Fiction: From DG and MJ-12 to equivalents in other countries, like the British PISCES or the Russian GRU SV-8.
  • Government Conspiracy: Majestic 12. Delta Green itself used to be this.
    • Alternatively, if you believe one Delta Green Agent: "We're the government conspiracy. Those guys are just the government".
    • PISCES can be considered a variation as well considering that it's been taken over wholesale by the Shan.
  • Greater-Scope Villain: Nyarlathotep inspired and guided the creations of the Cult of Transcendence, the Fate, the Sowers and Karotechia, but mostly stays in the background and leaves the affairs of the cults to his subordinates.
  • The Greys: The high-tech aliens cutting secret deals with MJ-12 for fun and profit. Of course, they are not what they seem.
  • Groin Attack: The Skoptsi sect in Russia does this to themselves — all members of the cult must undergo castration.
  • Gut Feeling: The reason the Mi-Go are so interested in humans is our unnerving (to them) capability to extrapolate accurate answers with little information and no clear logical chain of thought.
  • The Handler: So common that Delta Green's version of You All Meet in an Inn is "You are all called into the briefing by a handler".
    • Intelligence Case Officer is one of the professions for the PCs, you are the Handler of someone else.
  • Haunted House: The scenario Music from a Darkned Room features one.
  • He Knows Too Much: All manner of individuals who come too close to the truth about the true masters of PISCES find their way to the secret facility of Magonia, kept isolated from the rest of the population and even the warders until Shan-infested PIA interrogators learn all the prisoner has discovered about PISCES, as well as who they've told. Once their secrets have been stripped away, they are dropped by helicopter into the North Atlantic, there to die of hypothermia.
  • Hidden Elf Village: The K'n-Yani are committed to total paranoid isolation, and Delta Green has not risked altering that attitude.
  • Hidden in Plain Sight: The oldest and most significant Deep One colony in North America was founded in 1555 by an infected offshoot of the Haida of the Pacific Northwest. It remains hidden on Black Cod Island, Alaska, in plain sight, as a model 'American-Indian' settlement.
  • Horrible Judge of Character: During the 1960s in Vietnam the CIA had the idea of arming the Tcho-Tcho to fight the communists, not unlike the Hmong, the Yao or the Montagnards. Despite the Tcho-Tchos' rabid hatred of the communists, Delta Green and the Green Berets advised the CIA against arming the despicable, sadistic cannibals. Their warning was ignored. The CIA never admitted it had made a mistake with the Tcho-Tchos, even after it became obvious that the tribesmen were more interested in killing and eating their Hmong, Yao and Montagnard neighbours than they were in fighting the communists.
  • Human Sacrifice: Karotechia Project SCHWARZES WASSER involves sacrificing 'test subjects' from Auschwitz and Treblinka to make alliance with the Deep Ones.
  • Humans Are Bastards: One of the major themes that contribute to be Darker and Edgier then most Call of Cthulhu supplements. Delta Green doesn't not only fight monsters, it has also to deal with utterly amoral and evil humans that harvest the powers of the unnatural for their own sake, while Delta Green itself has to do horrible things to make humanity safe.
  • Humans Are Special: An interesting example considering the genre, but the humans are the only species that the Mi-Go discovered that has a "Epistemically Diploid" mind, that is, it's both rational and irrational, allowing to humans make guesses that do not fit a logical extrapolation from theoretical models, and often is that those irrational leaps of logics are correct, and this is utterly unnerving to the Mi-Go. Of course, considering the genre, this means that the Mi-Go will create a large network to brutally study and experiment humans including extracting their brains while they are kept alive.
  • Human Subspecies: The ghostly, subterranean K'n-Yani seem to be an offshoot or ancestor of humanity. The Tcho-Tchos appear to be a branch of humanity genetically corrupted by the unnatural. New Life children, created using the milk of Shub-Niggurath, are effectively a new species, as their DNA is no longer compatible with human DNA for purposes of procreation.
  • Hunting the Most Dangerous Game: Every two months, the Shan-infested elite of PISCES gather in the private estate of their leader Marjorie Rittingham and participate in a traditional British fox hunt, except that the fox has been replaced by a human victim.
  • I Did What I Had to Do: When the world falls away and the moment comes for violence, Delta Green agents can't afford to hesitate. Emergencies require split-second calls of questionable morality that may haunt agents for the rest of their lives. Sacrificing one innocent life for the survival of humanity might be an easier transaction for some than for others.
  • The Illuminati: The Cult of Transcendence is Delta Green's version of the Illuminati. A powerful conspiracy formed by wealthy and powerful individuals that worship Nyarlathotep and attempt to transform humanity into a proper mythos race by corrupting human society. Subverted in that historically, their attempts at running the world from the shadows failed miserably (described by one of the writers as being "The Gang That Couldn't Shoot Straight"), and in the present they collapse under their own weight due to the leaders being utterly divorced from concern over humanity, and everyone else having severe Chronic Backstabbing Disorder.
  • Immortality Inducer: As long as a worm inhabits a Disciple of the Worm, the host will not age a single day and will exhibit extraordinary powers of healing and resistance to shock and trauma.
  • The Immune: While Russian diseases decimated the Aleut and Tlingit peoples, it had no effect on the inhuman Black Cod. By the time America gained possession of Alaska in the 1860s, the Black Cod were the only tribe in the area that had not been decimated by disease, slavery or violence. No one except the Black Cod themselves know for certain why they were spared the horrors which ravaged Native American cultures.
  • Infectious Insanity: One of the plots of MJ-12's Project OUTLOOK is to create a "psychological virus", a way of causing a cascading spiral of riots and unrest through manipulation of the media.
    • Hastur. Unlike vanilla Call of Cthulhu, Hastur is not a God or Old One, but an infectious and pervasive force of decay. Knowing about Hastur or its related mythos trappings allows such decay to happen on a person's psyche.
  • Institutional Allegiance Concealment:
    • Technically Delta Green agents aren't employed by Delta Green proper but they work for the FBI, CIA, DEA, CDC and other agencies, the real question is if they are Delta Green agents undercover in the government, or government agents that secretly work for Delta Green. But sometimes Delta Green can provide them cover of another agency if deemed necessary.note 
    • NRO Delta agents are employees of the National Reconnaissance Office as a cover, but since the NRO doesn't officially exist, they are institutionally invisible and have double cover to hide their allegiance to MJ-12.
    • In some DG (or other agencies like PISCES or SV8) missions, one of the many ways to infiltrate a place to get evidence of Mythos involvement with criminals, terrorists and other shady persons is to use the cover of a law enforcement/government investigation or use pro-DG assets to help them get close to a target.
  • Interservice Rivalry: All the time between the various real-world agencies. Delta Green and MJ-12 used to have this in the short period where both officially worked for the US government. The 2016 edition features two Delta Greens; the Special Access Program, a reactivated, officially sanctioned version, and "the Cowboys", DG Agents who refused to come in from the cold and thus operate as vigilantes.
  • Invading Refugees: The Greys are these. They are actually not, this is a Invoked Trope by the Mi-Go. They deliberatly made the Greys hide the fact they are Invading Refugees so when MAJESTIC or Delta Green discovered that deception, they wouldn't look for the real one: That the Greys are disguises of the Mi-Go, who have their own agenda.
  • Istanbul (Not Constantinople): Warren Island in Alaska, which has no permanent resident population in real life, is renamed Black Cod Island and home to a secret community of Deep One hybrids.
  • Judge, Jury, and Executioner: The Star Council intervenes in a case where DG-aligned units are investigated for either being responsible for something that went wrong or to assign responsibility in case a DG operation goes bad. In some instances, they can recommend to liquidate the unit or have its personnel executed to ensure that there's no double agents or alien/paranormal infiltrators. The players are the council in the scenario The Star Chamber.
  • Just Before the End: In some level, everyone knows that there is not much time left for humanity. This is why the Mi-Go created the Grey deception: to extract as much information as possible from humans before our time runs out.
  • Keeping the Enemy Close: The Program and March Industries have this dynamic. March is formed by ex-Majestic personnel, researchers, technology and even some old members from MJ-12's steering comittee. They are the only one that can provide high-level research for Delta Green and cannot be disbanded without blowing their own cover, and at the same time March abuse that position to slowly regain their lost power. Both organizations keep eachother at bay.
  • Keystone Army:
    • The Fate collapses when Stephen Alzis vanished, collapsing into infighting and being targeted by Delta Green once they showed cracks in their apparent invincibility.
    • The Deep Ones of Black Cod Island will abandon land entirely if the Player manages to kill their progenitor and leader, He-Who-Swims-With-Corpses, a Dagon expy.
  • Kill and Replace: Unknown to everyone except perhaps Stephen Alzis, Robert Hubert is actually a former Karotechia member, SS-Hauptscharführer Dieter Scheel, who drowned and replaced the real Hubert in 1960.
  • Killed to Uphold the Masquerade: On 22 May 1948, Secretary of Defense (and high-ranking member of MAJESTIC) James Forrestal committed suicide by jumping from the 16th-story window of his room at Bethesda Naval Hospital. In reality, Forrestal was assassinated because he was planning to go public with what he knew about the Roswell crash.
  • Killer Cop: Mark K'amahl, the police chief of the Deep One hybrid colony of Black Cod Island has a completely schizophrenic relationship with the law, capable of reciting the law chapter and verse while simultaneously violating it. A zealous follower of the inhuman God of the Black Cod people, he takes pleasure in every manner of atrocity serving that dedication: rape, murder and cannibalism.
  • Knight In Sour Armor: Delta Green and its agents are this, the world absolutes sucks, Humans Are Bastards, the apocalypse is unstoppable and they have to do terrible things in their war against the Unnatural. Doesn't prevent Delta Green from trying.
  • Knight Templar: Delta Green agents used to go too far in their quest to both protect the American populace from the supernatural and keep the existence of the latter (and itself) a secret, particularly in the Fairfield era. Some still do. In the words of one DG agent, "we do the horrific to prevent the apocalyptic". Later in that story, the same agent deliberately, and (we are led to believe) needfully, shoots a baby.
  • Know When to Fold 'Em:
    • The Deep Ones. In the original sourcebook, it's noted that DG invested much of its efforts from its founding in the wake of Innsmouth until after World War II to hunting down Deep One colonies. As such, the vast majority of them have determined the surface world is now more trouble than it's worth, and only very isolated enclaves remain on the surface.
    • The creators have alluded to this being the fate of the Mi-Go; they, through the Greys, stopped working with Majestic-12 around the turn of the millennium.
  • Legacy Character:
    • Agent ALPHONSE. Originally that was the role of Joseph Camp, organizer of the Delta Green conspiracy. After his death, Donald Poe, a.k.a Agent CHARLIE found the A-Cell's data and resources and assumed the mantle of Agent ALPHONSE. He is still Agent CHARLIE as well, presenting himself in person as CHARLIE and creating the illusion a never-seen ALPHONSE. The name "Alphonse" is also an homage to Captain Alphonse Dumars, one of the few officers of the ONI's Parapsychology, Paranormal, and Psychic Phenomena Desk before the Innsmouth raid, writer of the PUZZLEBOX after action report and early Delta Green leader.
    • There will always be a CptnSnshn, if the current is killed, the newest to be induced into the Lonely suddenly starts acting as if they always were CptnSnshn, and within a few days they absorb and learn all the knowledge previous CptnSnshn and the cycle will begin anew. The Lonely, and CptnSnshn, can't be beaten.
  • Life Drinker: Each year, Mary Dasinger performs the Ageless Banquet ritual, which involves sacrificing and consuming a human victim. As a result, Mary has stopped aging and will remain 27 years old as long as she continues using the ritual annually.
  • Loners Are Freaks: The Lonely, a collection of unaffiliated loners and incels who are organized through the internet by a mysterious figure known as "CptnSnshn" (Captain Sunshine). CptnSnshn has an uncanny ability to find isolated people in nearly any internet subculture, and reinforce and amplify their loneliness and resentment. The many persons that become CptnSnshn are actually a Phantom of Truth: an avatar of the King in Yellow. As CptnSnshn keeps corrupting them more and more, they tend to either disappear out of existance or become mad bombers or mass shooters.
  • The Mafia: The Fate is New York City's magic-using organized crime cartel.
  • The Mafiya: The Tadjbegskye Bratva, a Russian mafia bratva created by veterans of the Soviet-Afghan war who accidentally discovered Leng during an operation.
  • Make It Look Like an Accident: Victims captured and sacrificed by the Deep One hybrids of Black Cod Island are always tourists, someone snatched from a hunting trip, misplaced in a walk in the woods, or snatched from open rainforests. Since deaths from exposure are common, and often no remains are found for as much as a decade or more, these disappearances are not considered at all unusual and have never aroused local suspicion.
  • Malevolent Mutilation:
    • The Đạo Sẫm believe that the truth of the world is suffering, death, shame and pain: their Phật Sẫm (Black Buddha) strips away lies by revealing this truth. Betrayal, torture, ritual flensing and self-mutilation are acts of worship.
    • Cultists of the Skotpsi sect undergo a process of castration. Ouch.
  • The Man Behind the Man: Majestic-12 is begin manipulated by the Greys to do their bidding which in turn are remote-controlled deguises of the Mi-Go.
  • The Masquerade:
    • Delta Green fights to keep the existence of the paranormal a secret from the public at large, why? Because the unnatural is real and it kills. The 2016 edition states that part of the job is already done, even in the world of the internet and smartphones: Most manifestations are very rare by itself, occurs in private or isolated places, society is naturally skeptic about anything supernatural and Delta Green itself supress the rest, even if involves ''neutralizing'' innocents.
    • The ghouls also have their own reasons to mantain the Masquerade. While they can disguise among humans and have mastery of hypergeometry, they are outnumbered by far. The DeMonte clan, based in New Orleans, was almost wiped out by Delta Green when they were discovered.
    • PISCES (as MI-13) initially maintained the masquerade so their enemies couldn't figure out about the paranormal techniques used against them, later that they were taken over by the Shan which control key parts of the PISCES, the UK Intelligence Community and the British Military-Industrial complex. The Shan want self-preservation first and foremost, maintaining a Masquerade prevents from people looking deeper into the unnatural world and discovering about them.
    • The Mi-Go want to harvest and study the human brain's special abilities, but they don't want humanity to become aware of their schemings , that's why they created the Greys, they knew Delta Green or Majestic-12 would supress their existence from the public, they have an extra layer to disguise their operations.
  • Meaningful Name: The Black Cod people are named after Anoplopoma fimbria, a species of fish sometimes called black cod or butterfish in the US and Canada. Many of the fish's traits are similar to the Black Cod people: it is an opportunistic feeder, preys on its fellow fish, is extremely long-lived, and can survive at great depths.
  • Mind Screw: The Hastur Mythos. Also Surreal Horror.
    It’s horrific when an unnatural tome reveals the secrets of the universe, it’s surreal horror when that book written in 1611 contains a description of you down to the smallest details, including the fact that you’re reading that book right now.
  • The Men in Black: Delta Green used to be this until it was disbanded by the government. NRO Delta is MAJESTIC's Men in Black division, supressing the knowledge of aliens and paranormal, as well fighting MJ-12s enemies. Add to the list some international counterparts in the form of PISCES and GRU SV-8. At times, the setting gets crowded with Men In Black trying to intimidate eachother.
  • The Mole: The Outlaw agent James Derringer is one, having his body begin taken over by a Yithian.
  • Mole in Charge:
    • Gavin Ross, the director of Project GARNET (MJ-2), MJ-12's counterintelligence division, recruits Forrest James, a.k.a Agent DARREN, to take down Majestic-12 from inside during the events of the novel Through A Glass Darkly. After some interesting series of events Gavin Ross secretly ends up as Agent ADAM of Delta Green after he's killed in a Karotechia ambush accidentally staged by Forrest and later Forrest James becomes the Director of Majestic-12 itself. This makes it easier to unite both organizations into the Program.
    • In 1968, several PISCES agents were taken over by the Shan. By 1988, the Shan had managed to infiltrate one of their own into PISCES leadership. They continue to control PISCES to this day through the infected director of PISCES, the Duchess of Staffordshire.
  • Motive Decay: What leads to Majestic-12's demise, some elements inside it started to see that MJ-12 degenerated into a quasi-Cargo Cult that worshipped Grey technology for its own sake. Eventually those who thought like that work to take down Majestic from the inside (Such as Gavin Ross) with the help of Delta Green and turn into The Program.
  • Multiple Identity IDs: There are some rules on how to adquire or forge passports and other IDs.
  • Mysterious Informant: The Director of Phenomen-X, Frank Carincola, is frequently contacted by a mysterious informant from what he believes is "The Group", a secret US Government agency that hides the paranormal from the public, which points the crew into the direction of the supernatural. In fact, the informant is actually from Majestic-12 and Delta Green. MJ-12 sets Phenomen-X against Delta Green in attempts to expose DG and difficult their operations, while Delta Green uses Phenomen-X as a Canary in a Coal Mine.
  • Mysterious Stranger: The Handler is recommended to make Stephan Alzis be this, sometimes appearing in Stealth Hi/Bye and giving the PCs some advice or support while keeping the reasons for it mysterious.
    • The King in Yellow in Carcosa.
  • Nazi Hunter: Any Agent in an operation against the Karotechia will be this. One particular example in the backstory is Operation SOUTHERN HOSPITALITY, where Delta Green went to South America track down and assassinate former Karotechia members, Mossad style.
  • Night of the Living Mooks: On 21 December 1944, the Karotechia perfected a method for reviving the dead, and subsequently drove truckloads of 'resuscitated casualties' to the Eastern Front.
  • No Such Agency:
    • Delta Green started off as an official one. Now it exists in two forms; as a highly classified and secret interservice program, and as an unauthorized, unofficial conspiracy. The 2016 brought Delta Green back as an "official" organization nicknamed "The Program".
    • MAJESTIC-12 is a bit more "official" then DG, with proper government recognition, although no oversight.
    • The original sourcebook classifies the real-life intelligence agency National Reconnaissance Office as one, at the time of the writing (1996) the US government neither denied or confirmed the existence of the NRO and most of the operations that the NRO were off the books, because of that the NRO runs the "NRO section DELTA", a black ops assassination group used by MAJESTIC-12 as their cleanup, coverup and wetwork division. As History Marches On, most details about NRO were declassified and revealed, this became a Discredited Trope and in the 2017 edition the NRO was Demoted to Extra.
    • Some other foreign organizations similar to Delta Green include: M-EPIC of Canada, PISCES of the United Kingdom and GRU SV-8.
  • Not-So-Omniscient Council of Bickering:
    • The Cult of Transcendence, for all it's power and resources, falls prey into this: the Masters are beyond human sanity and can't even properly communicate, while the Bishops and Acolytes are suffering from Chronic Backstabbing Disorder—according to the creators the Cult is essentially "Mythos Ponzi Scheme" without a real unified goal. In the new edition of the game, the Cult imploded on it's own weight as those internal problems became too big to manage.
    • Majestic's Steering Comittee had always a few internal divisions whether the accord with the Greys was benefitial or not. These divisions became extremly prevalent during the Delta Green-MJ12 secret war, it took one rogue element (the counterintelligence director Gavin Ross) and a bit of luck (With the 9/11 attacks) to take Majestic down.
  • Not-So-Well-Intentioned Extremist: Some members of Majestic-12 (And later March Industries) are just there to get Grey technology, dumb it down for human use and sell for major intelligence and defense community contracts.
  • Obfuscating Stupidity: It is easy to assume there is something mentally wrong with Black Cod people at first glance. To most whites unfamiliar with the them, they appear mildly retarded. This is a dangerous misapprehension: these Deep One hybrids are stronger, smarter and faster than the human norm, and capable of incredible feats of language, math and science.
  • Oddly Small Organization:
    • The Cowboy and Outlaw incarnations of Delta Green are divided in cells going from A to Z, each one with 3 agents each (With their codenames starting their Cell's letter), this means they have 78 full-time members active all the times. However, A-Cell understand this, as they employ "friendlies" which are contacts that know about the unnatural and help Delta Green, most of the time they are contacted when the conspiracy needs them and some are de facto agents members of a cell.
    • Karotechia itself is formed by three men, however, they managed to covertly achieve control of ODESSA (A secret organization of escaped nazis) and to employ neo-nazi, white supremacist, mercenary and criminal groups, collectively referred as the Bauern (Pawns), to work for them.
    • While The Program is much bigger, more organized and well-funded, its still comparatively small compared to other U.S agencies or even to fictional counterparts. They do try to make themselves look they are bigger then they are for their enemies and their own agents:
    "A new Agent, on the other hand, may think the Program is at least as substantial as the DEA or the U.S. Marshals Service, only to realize, gradually, that it’s a fraction of their size."
  • Older Than They Look: The 134-year-old Arthur J. Macready appears to be only in his mid-sixties, covered in filth and sputtering expletives and odd, guttural chants.
  • The Omniscient Council of Vagueness: The setting is filled with these
    • A-Cell is this for cowboy Delta Green.
    • The 9895 ExComm (Executive Committee), the leadership of Delta Green from 1947 to 1970, many of them still kept active after Delta Green was disbanded, such as Major General Fairfield and Dr. Joseph Camp (Future Agent ALPHONSE).
    • Majestic-12's Steering Committee, formed by 12 people each one a director of the 12 sub-projects.
    • The Transcended Masters, leaders of the Cult of Transcendence and aswering only to Nyarlathotep itself.
    • The Program's Board of Directors.
  • Only Known by Their Nickname: While Parapsychology, Paranormal, and Psychic Phenomena Desk remained its official designation, soon its members began to refer to it by its OSS codename: DELTA GREEN.
  • Our Dragons Are Different: Xin (better known as Lloigor) manipulate local matter, often along pre-existing psychic blueprints, to create bodily shells. In China, Wales and elsewhere, the shell most often takes the form of a dragon or enormous serpent, the lung-xin.
  • Our Zombies Are Different: Many unnatural formulae can restore a corpse to a semblance of life. All are called zombies, but may have very different features.
  • Paranormal Investigation: The whole point of the game and the organization. Word of God is that one of the initial objectives of the setting was a way to justify why a bunch of different individuals in a game of Call of Cthulhu would band together to investigate the unnatural when they should be running away.
  • Personal Horror: The Bond and Sanity mechanics bring this, as Agents will start slowly burning their sanity and becoming stressed as they lose relations with the external world and isolate themselves from friends and family as their lives fall apart.
  • Pintsized Powerhouse: Old Mary appears ancient and small, but is far from frail. Her body, which was wracked with various genetic changes during John Adams' Presidency, is far along the spectrum to pure Deep One. Beneath her cassock, her body is a scaled and abscess-covered monstrosity capable of great feats of strength.
  • Police Brutality: If the officers in the Chicago Police Department's 11th District think that you are not fully cooperating with them, you receive a 'fair trial' in the basement: beatings with phone books and truncheons, the water cure for poor memory, and a car battery to spark civic pride. You can 'appeal' to the rats in the cellar; manacled wrongdoers often make a full confession to them. Inside the tunnels is the 'court of final appeal' – the hyperdimensional realm of Nyogtha.
  • Pretentious Latin Motto: Delta Green's in-universe unofficial motto that shows in their logo is Scientia mors est, "Knowledge is death".
  • Private Military Contractors: The Complex sourcebook offers the Constellis Group, a real-life conglomerate which includes PMC subsidiaries such as Academi (Former Blackwater) and Triple Canopy, as possible employer for the PCs. However, since the writers did their research, they are a more realistic and accurate version of this trope.
  • Properly Paranoid: By 1789, with France engulfed in revolutionary chaos, the DeMonte clan saw that the perfect storm was brewing in Saint-Domingue, and a second slave rebellion like François Mackandal's would be a bloodbath; Saint-Domingue's independence from France would spell the end of the colony. The other whites gleefully bought out the DeMontes' holdings, seeing them as too cowardly to fight the 'sub-human' blacks. On 22 August 1792, two years after the last DeMonte left for New Orleans, the great slave rebellion broke out. After twelve years, the white colonists of Saint-Domingue were destroyed, and the DeMontes had the last laugh.
  • Psychic Powers: There are a few optional rules for those; PISCES is the most knowledgeable about the subject.
  • Psycho for Hire: Adolph Lepus.
  • Punch-Clock Villain: Most of the non-medical staff employed by New Life Fertility know nothing of the company's true nature as a cult of Shub-Niggurath and are not initiates into the cult. A few of them would be outraged if they knew the truth about their employers.
  • Puppeteer Parasite: The Shan, of course.
    • The Mi-Go can assert mental control over anyone infected with protomatter; however, Convergence notes they tend not to use this ability.
  • Pyrrhic Victory: This is the absolute, insanely-optimistic, ridiculously-unlikely best outcome of humanity's struggle. The more likely outcomes are much worse.
  • "Rashomon"-Style: The scenario The Star Chamber involves the players interviewing (and playing!) another cast of PCs with the objective of deciding who was at the fault for causing the failure of an operation. The book even states: "It’s Rashomon with anti-gods and automatic weapons."
  • Reality Is Out to Lunch: Hastur's entropic influence breaks down human perception of reality, and on a quantum level reorganises (or disorganises) the reality around them. Reality becomes relative to the observer: buildings shift, paintings change, lights flicker, statues mutate and time flows differently in the presence of those touched by Hastur.
  • Really Gets Around: Joe Kátl's weakness is human women. He spends tens of thousands of dollars on whores from all over Alaska, even flying some in for his pleasure. So far this has remained outside the view of the Black Cod elders, but his luck is rapidly dwindling. Eventually, he will impregnate one of these Xaat'aa (humans) and produce something monstrous.
  • Really 700 Years Old: The Transcendent masters since they are barely human anymore and more like a unnatural creature. One of them is actually really 700 years old.
  • Renegade Splinter Faction: Following their disbandment, Delta Green for the U.S. government. However, their ruthless actions are partly justified.
    • In the new setting, after 2001, Delta Green successfully dismantled MAJESTIC-12 and its remnants were fusioned into a new, unified and official Delta Green. Some old members of DG weren't very happy with this and decided to form its own faction, that also calls itself Delta Green. The "official" Delta Green is called "The Program" and the "renegade" is called "The Outlaws".
  • The Reptilians: Serpent-folk, utilising hypergeometry, have masqueraded undetected as humans for long periods of time, even interacting with humans in the modern age, and are one of the most insidious threats to Delta Green.
  • Research, Inc.: March Technologies, Inc. Originally started as a front company for MAJESTIC for advanced research, but after their collapse many ex-MAJESTIC personnel went to work at March (Including four former members of the Steering Committee). The Program can't shut down March since it's a major part of the Military-Industrial Complex and has rely on March for research.
  • La Résistance: The Army of The Third Eye, against the Shan.
  • Rock Me, Asmodeus!: Charnel Dreams is one of the most popular bands in New York City. Their lead singer is the head assassin for the Fate, worships Nyarlathotep, and works Cthulhu Mythos spells into the lyrics of his songs.
  • Roswell That Ends Well: Appears in the background as how MAJESTIC was founded.
  • Sacrificial Lamb: "Friendlies" are those people that support DG's cause but are not fully inducted into the conspiracy. Delta Green maintains a database with full information on each and every one, so that they can be properly "taken care of" if the need arises.
  • Sanity Meter: Naturally as a Call of Cthulhu game. Delta Green offers an interesting variation: The 2016 standalone adds bonds for every agents. Every Agent starts with points in each bond, and can project on their bonds to lower the SAN loss at the coast of the relationship with the bonds.
  • Sealed Evil in a Can: Several examples. Most notable is the Father of Knives, a sentient storm of razor-sharp obsidian shards sealed in an urn... and inadvertently freed by ISIS militants looking for artifacts to loot or destroy.
  • Secret Government Warehouse: The Green Boxes used by Delta Green are this, they can range from self-storage, warehouses, rental lockers to safe houses. The Green Box generator is an old tool based on this concept.
    • Majestic-12 has a lot of those, dedicated to researching Grey technology, but they are usually within larger U.S Military, CIA, NSA, NRO and March Industries facilities. One of their facilities is located in Area 51 (Although not Area 51 itself).
  • Secret Identity: Every Delta Green agent spends most of his or her time working a 'real' job. Many are FBI, CIA or military, but nearly any profession can be found in Delta Green's ranks.
  • Secret Keeper: Allen Argasta is the sole human who has been exposed to the terrible true nature of the Black Cod people and has lived, which might lead to a secret exposure of the horrors perpetrated by these Deep One hybrids.
  • Secret War: Between Delta Green and Majestic-12, it (un)officially started in 1994 when General Fairfield uncovered Majestic's Accord with the Greys, he was so disgusted that he threatened to go public with his revelations, he was then murdered by NRO operatives which caused to Delta Green to reorganize into the cell-structure to strike Majestic, at the same time they had a second front with the Karotechia, the Fate and a myriad of Mythos cults.
  • Set Right What Once Went Wrong: Part 4 of the Future Perfect scenario can lead into DG agents working to ensure that Hunt (now possessed by the Serpent Man) is wiped out to ensure that their presence in the future is no longer a worldwide threat. This, however, requires them to work with a Yithian whose willing to help them out and get them back to the current timeline.
  • Shoot the Builder: All prisoners involved in the construction of the secret room beneath Wewelsburg castle were executed inside the cell in the end. No witnesses remain.
  • Shown Their Work: The bibliography shows a respectable collection of material regarding world history, UFO folklore, and the praxis of the US intelligence community.
  • The Sleepless: Michael Keravuori has not slept since the day of his last mission for Delta Green: Operation SKUNKED in Colombia, 1956. Something happened in the jungle that he can't recall no matter how hard he tries.
  • Slobs vs. Snobs: Fall of Delta Green suggests to use this as the relationship between Delta Green and Majestic-12 before the disbandment of Delta Green and Majestic's Accord with the Greys.
    MAJESTIC sees DELTA GREEN as knuckle-dragging cowboys whose response to the greatest potential advance for humanity since fire is to set it on fire. DELTA GREEN sees MAJESTIC as pointy-headed intellectuals who won’t admit they don’t understand the unnatural until they’ve accidentally blown up a mountain with it, or a city. But only a minority of each group really thinks of the other as anti-American, much less as evil.
  • The Sociopath: Adolph Lepus, literally, as he has an antisocial personality disorder.
  • Soviet Superscience: GRU SV-8 used to have a number of advanced super-projects, and their SMERSH rivals had a hypergeometrical machine to make Josef Stalin immortal.
  • Space Isolation Horror: The whole theme of the scenario BLACKSAT.
  • Spell My Name with an "S": Delta Green uses slightly different spellings for some familiar Great Old Ones: Itla-shua (Ithaqua), Qu-Tugkwa (Cthugha), Tleche-Naka (Atlach-Nacha), Giliszta (Glaaki) and A-Abhi (Abhoth).
  • Split Personality: It's possible for the Player Characters to develop Dissociative Identity Disorder due excessive trauma from where they feel too much helplessness or from the unnatural.
  • The Spook: Stephan Alzis, NRO Delta agents, Forrest James, Gavin Ross and potentially the player characters.
  • Spy Fiction: Stale beer flavored. Players are (at their most legit) agents of an inter-agency task group that survives mainly by hiding within the byzantine confluence of the United States's military, law enforcement, and intelligence arms; obligated to violate the law but without protection from consequences for doing so; and subjected to fights against inhuman foes, corrupt corporate or governmental interests, and insane cultists with the very best outcome being a string of phyrric victories. The 2015 edition includes gameplay mechanics to play out the dissolution of the agent's family and strongest interpersonal relationships.
  • Spy Speak: Considering it's a Spy Fiction, there's a lot of this. "A Night at the Opera" is a call for an operation, a "Green Box" is a place to stash equipment and artifacts, "ARCHINT" is "Archeological intelligence" (Similar to HUMINT or SIGINT), that deals with archeological artifacts, tomes and their pratical intepreations to fight the unnatural, "The Unnatural" for the genuine supernatural and "Blacker than Black", used by DG agents to refer anything to do with Delta Green.
  • Stable Time Loop: Important plot point of two scenarios ( Artifact Zero and Observer Effect) and which the players can personally experience.
  • The Starscream: Through the centuries, Antoinette DeMonte has strung her cousin Claudette along with assurances that she is her heir apparent, second in command and closest confidant. Claudette hasn't believed these assurances for over two centuries, and has been seeking to unseat Antoinette and gain control of the DeMonte Clan. If she ever discovers a member of Delta Green, she would offer to be their informant, directing them against Antoinette. Once the Marquise is out of the way, Claudette will step forward to assert her claim to the Clan's leadership.
  • Stealth Hi/Bye: Stephen Alzis is fond of this.
  • Taking You with Me: Reginald Fairfield's last stand.
  • The Theme Park Version: In 1989, in order to lessen local suspicion following the deaths of two Deep One hybrids of Black Cod Island, the 'Black Cod way of life', or at least a facsimile thereof, was opened to tourists and graduate students from the Department of Anthropology in the University of Alaska Fairbanks. In truth, all an outsider ever sees is lifted directly from an anthropology textbook, and their stories are boringly tame. Twenty years of research has compiled the illusion of a Haida-like culture, and it is generally accepted that the Black Cod are a Haida offshoot. The oddities in their language and culture (particularly their worship of the sea) have been noted as nothing more than a curiosity.
  • These Are Things Man Was Not Meant to Know: One of the past experience options is explicitly called "Things Man Was Not Meant to Know". It gives 10 points in Unnatural and 20 in occult but deals a huge blow in Sanity and Willpower points.
  • This Is My Name on Foreign: When the Croat Luko Ranjima transformed into a ghoul and joined the DeMonte clan, he changed his name to Luc DeMonte.
  • Time Travelers are Spies: The Great Race of Yith can time-travel by mind-snatching their victims in the past or future, they usually do this to study a certain time or to further their plans. They have infiltrated The Outlaws by mind-snatching agent James Derringer, the Yithian using his body is attempting to investigate further into March Industries or trying to weaken The Program.
  • Town with a Dark Secret: To the public, the people of Black Cod Island appear to be a friendly community with ancient traditions, their industry and self-sufficiency admired by all. But the Black Cod people are not Haida. They are not even human. In secret, these Deep One hybrids abduct lone travellers in the Alaska wilderness for sacrifice to their dark lord, a huge, primal Deep One called He-Who-Swims-With-Corpses.
  • Trauma-Induced Amnesia: Very common response to the unnatural is to forget, due the sheer trauma and the brain's unability to understand what can never be understandable.
  • The Tunguska Event: Might have been caused by someone summoning Azathoth gone wrong, the devastation caused by the Karotechia trying to summon Azathoth at Naudabaum castle is likened to Tunguska.
  • Under New Management: In the updated setting, "The Program" was born out of a takeover of MAJESTIC by Delta Green agents.
  • Very Loosely Based on a True Story: The Haida's Fish-Wife legend is a mutation of the facts of the 1555 raid on the Deep One hybrid village of Cha'atl. The people of Black Cod Island, descendants of the survivors of Cha'atl, claim not to know this story; to them, it is history, and a secret one at that. The Haida tribes do not know the true history of the Black Cod, but their elders remember tales of the Devil-Fish people. If the Agents talk seriously about half-men, half-fish people, one or two elders may become very grave, wondering if they have really been living near their ancestral enemy all this time. If confronted with proof of the Black Cod's dark origins, any Haida would recognise them instantly as descendants of the Fish-Wife.
  • Vigilante Man: After its official disbandment, DELTA GREEN operatives continue to operate within the government as a secret conspiracy, without official sanction. When the Program was reactivated, a stubborn core of Delta Green agents rejected the compromises that the Program promised in exchange for legitimacy and did their best to drop out of view, but maintained their mission.
  • Villainous Incest: The inherent attraction between New Life children ignores familial boundaries. There has been a few incidents of New Life children sexually abusing younger New Life siblings, unable to overcome the reproductive drive encoded in their DNA.
  • Villain Protagonist: The Handler's Guide comes with tips on how to run a campaign as members of the Fate or Majestic-12. In part 1 of the campaign Iconoclasts, players are required to play as ISIS foreign fighters. Since this is Delta Green, they aren't the big fish.
  • Villain with Good Publicity:
    • New Life Fertility is a publicy known company, famous by their completly infallible, if not extremely expensive treatment, and also for their non-profit NGO New Life foundation, which sponsor a number of social works. The clientele of New Life includes millionaries, celebrities and royalty, if the agents go after New Life they'll have to fight their large network of supporters, connections, law firms, PR companies and hired thugs.
    • The Sowers are publicy known as a small and reserved hyper-fundamentalist christian sect who hide in plain sight due the "Metaphysical innocense" from ritualistic sacrificing Azazel, which makes them invisible from the eyes of the public. If the agents go after the Sowers, they'll first start using their own resources and personnel, if the agents persist, they'll escalate and hire a law firm to harass and bully the agents (if identified) and a PR firm to call the attention of the national — and often conservative — media: reporters will visit the Sower's compounds, who will sell their image of an innocent church focused on farming, self-sufficiency and recovering local communities, and that they are begin unjustly persecuted by the federal government.
  • The Virus: Greater Deep Ones reproduce asexually, injecting a parasitic gene complex into the host. This complex mutates the human into a Deep One hybrid, and a carrier of the Deep One gene complex in their own chromosomes. Thus the Deep One taint spreads through humanity much like a sexually transmitted disease. This is what happened in all Deep One hybrid colonies, including Innsmouth.
  • Who You Gonna Call?: The whole point of the setting was to add an organization that hunted and supressed the creature from the Cthulhu mythos that the players could be part of.
  • Welcomed to the Masquerade: Delta Green's recruitment process is to set people with exposure to the Unnatural (especially government agents) as "friendlies", if they are shown to be of value for DG, they are fully recruited as an agent.
  • Well-Intentioned Extremist: The Army of the Third Eye are mostly crazed fanatics, but what they fight against is much worse. Delta Green itself can come off as this at times.
    • Majestic-12 sees itself as this, they made the accord with the Greys because they were the only friendly alien species to contact mankind and see in them the only way that humanity can adquire enough technology to be ready to fight other more powerful species, some parts of MJ-12's leadership massively distrust the greys and seek to discover their true itentions. In the end, what certain elements of MJ-12 saw as a Motive Decay of the organization is what leads to Majestic's demise.
  • Wicked Cultured: Ghouls of the DeMonte clan maintain an unusual level of gentility. They eat from fine china plates, drink from crystal glasses, do not devour corpses with their teeth and claws, but rather carve their food and eat it by the forkful, and even create recipes for their corpses.
  • World of Chaos: Carcosa, the land "governed" by the King in Yellow, is a surreal place where reality remains stable only when you turn to look at it. As soon as you stop looking at something, reality is free to change as it pleases, simply because you cannot perceive it. As one area of reality is modified, everything around it changes in response. This causes the original area to shift in response to that, and so on. The net effect of this is that Carcosa is completely remade every few hours, never the same thing twice. Needless to say, this makes navigation incredibly difficult for the doomed fools who travel there.
  • The World Is Always Doomed: Delta Green's unofficial mission is to "delay the inevitable for a few more years" (emphasis ours). They've been at it for the better part of a century.
  • Year Outside, Hour Inside: The passage of time in the Higher Plane is far slower than in our world. The rate of passage is something close to a minute in the Higher Plane to every day outside.


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