In Delta Green, cosmic terror meets modern conspiracy. Delta Green is a secret group dedicated to protecting humanity from unnatural horrors, misappropriating the resources of the U.S. government to wage a war that they must keep hidden at all costs.
Crowdfunding & Merchandise
- Kickstarter rewards report
- T-shirts and art prints by Dennis Detwiller
- Patreon: Dennis Detwiller
- Patreon: Shane Ivey
- Patreon: Caleb Stokes
Start Here
Need to Know: quickstart rules with demo scenario (“Last Things Last”) and pregenerated characters — pdf | print | roll20 | foundry| audio
Other Starter Scenarios
Future/Perfect, Part 1: an introductory investigation of murders in Death Valley — pdf
PX Poker Night: strange and lethal forces descend upon a lonely Air Force base’s one good night of the week — pdf | print
Sweetness: a happy family faces a devastating threat — pdf
A Victim of the Art: a serial killer terrorizes a seaside town — pdf | print
Core Rulebooks
Delta Green: The Role-Playing Game: a slipcase set including the Agent’s Handbook and the Handler’s Guide — pdf | slipcase set with two hardbacks
Agent’s Handbook: complete rules for creating Agents and playing the game — pdf | hardback | foundry
Handler’s Guide: game moderator tools including the history of Delta Green; unnatural tomes, rituals, entities, and Great Old Ones; tips and tools for creating new unnatural threats and scenarios; deep details of the Delta Green organization—and the other conspiracy that claims it is the real Delta Green; and a sample scenario, “The Sentinels of Twilight” — pdf | hardback
The Fall of Delta Green: a Gumshoe adaptation of Delta Green: The Role-Playing Game set in the 1960s — pdf | hardback
Translations
Sourcebooks and Resources
Agencies (PRE-ORDER): profiles of U.S. and international government agencies from the late 1990s for use with The Conspiracy — pdf | print
Agent Dossiers: editable character sheets for every profession in the Agent’s Handbook and The Complex— pdf
Alphonse’s Axioms for Agents: a handout for players — pdf
ARCHINT: a collection of artifacts to add terror to any campaign — pdf | print
Briefing Documents: quick reference sheets for the table, including agent professions and a character sheet — pdf
Character sheet (fillable forms) — pdf
Character sheet (printer friendly) — pdf
The Complex: twenty-one new dossiers on federal agencies and private-sector contractors, with suggested Agent professions and how to use them in your campaign — pdf | print
The Conspiracy: a DGRPG update of the 1996 Delta Green, with detailed profiles of Delta Green, MAJESTIC, Saucerwatch, the Karotechia, and the Fate — pdf | print
Control Group Handout—Gath Valley Mission presentation: a digital handout for the scenario “Night Visions” in Control Group — pdf
DemonWeb101.com: an overview of the Preliminary Invocation to Primeumaton that Agents may discover during Impossible Landscapes — web
Deep State (PRE-ORDER): a sourcebook detailing the projects and companies that spun off from Majestic-12 in the War on Terror. — pdf | print
Digital Assets—Classified Pack 1: Images and Procreate brush sets for creating your own Delta Green documents. — download
Digital Assets—Law Enforcement Pack 1: Images and Procreate brush sets for creating your own Delta Green documents. — download
Digital Assets—Murder Board Pack 1: Images for creating your own Delta Green murder boards and documents. — download
Digital Assets—Murder Board Pack 2: Images for creating your own Delta Green murder boards and documents. — download
Digital Assets—Private Sector Pack 1: Images and Procreate brush sets for creating your own Delta Green documents. — download
Digital Assets—Public Interest Pack 1: Images and Procreate brush sets for creating your own Delta Green documents. — download
Evidence Kit—Final Passages (PRE-ORDER): Downloadable documents, props, and clues for “Final Passages.” — pdf
Evidence Kit—God’s Teeth (PRE-ORDER): downloadable documents, props, and clues for “God’s Teeth.” — pdf
Evidence Kit—The Labyrinth: downloadable documents, props, and clues for “The Labyrinth.” — pdf | print
Evidence Kit—Those Who Come After (PRE-ORDER): downloadable documents, props, and clues for “Those Who Come After” — pdf
Handler’s Guide worksheets in Spanish: operations, entities, and rituals, translated into Spanish by Morgan Blackhand — pdf
Handler’s Screen: downloadable panels with art and key game data — pdf | print
The Labyrinth: new allies and enemies for Delta Green — pdf | print
Legacies (PRE-ORDER): deep descriptions of Black Cod Island, M-EPIC, the Disciples of the Worm, and the DeMonte Clan in the era of The Conspiracy and just after — pdf | print
Machinations (PRE-ORDER): deep descriptions of the fungi from Yuggoth, the Fate, and Project RAINBOW in the era of The Conspiracy — pdf | print
The Millennium (PRE-ORDER): deep descriptions of PISCES, GRU SV-8, The Skoptsi, Outlook Group, Phenomen-X, Tiger Transit, the D-Stacks, the Keepers of the Faith, and the King in Yellow in the era of The Conspiracy — pdf | print
Operational History (PRE-ORDER): a detailed history of the Delta Green setting with tools on every page to turn events into scenarios and campaigns — pdf
PISCES (PRE-ORDER): a sourcebook detailing the UK’s fraught paranormal program and Delta Green operations overseas — pdf | print
STATIC Protocol: ever deeper resources for players and Agents to research in your Impossible Landscapes campaign — pdf | print
Those Who Come After (PRE-ORDER): a sourcebook by Dennis Detwiller about the temporal machinations of the Great Race of Yith — pdf | print
Transcendence (PRE-ORDER): a sprawling look at the Cult of Transcendence in the era of The Conspiracy and just after — pdf | print
Campaigns and Collections
Black Sites: a collection of new and classic Delta Green scenarios: Ex Oblivione, Hourglass, Kali Ghati, The Last Equation, Lover in the Ice, PX Poker Night, Sweetness, and The Child — pdf | print
Control Group: four horrifying scenarios that introduce unsuspecting strangers to the world of Delta Green — pdf | print
Falling Towers (PRE-ORDER): a campaign and sourcebook detailing Delta Green’s operations, assets and threats in New York today and its war against the Fate in the 2000s. — pdf | print
Final Passages (PRE-ORDER): collection of scenarios based on “The Labyrinth”: Bleeding Darkness, The Horned God, In the Stillness, The Language of Stars, Schemata, and Undertow. — pdf | print
Future/Perfect, Complete Campaign: a bundle containing all four parts — pdf
God’s Teeth: a campaign about Delta Green agents confronting a hungry unnatural force. — pdf | print
Iconoclasts: a campaign that takes Delta Green Agents into the war-torn heart of ISIL-occupied Mosul — pdf | hardback
Impossible Landscapes: a sourcebook and campaign of Delta Green confronting Carcosa and the King in Yellow — pdf | print
Incursions (PRE-ORDER): a hardback scenario collection including “Artifact Zero,” “Convergence,” “Dead Letter,” “Grace Under Pressure,” “Holy War,” “The New Age,” “A Night on Owlshead Mountain,” and “Puppet Shows and Shadow Plays” — pdf | print
A Night at the Opera: A hardback collection of six scenarios — pdf | print
Shotgun Scenarios (PRE-ORDER): a collection of short, lethal scenarios from Delta Green’s creators and new contributors — pdf | print
Individual Scenarios
Artifact Zero (PRE-ORDER): the terrors of Project RAINBOW come to a Montana paleontology dig — pdf | print
Convergence: UFO mysteries lead to far deeper horrors in rural 1990s Tennessee — pdf | print | roll20 | foundry
Dead Letter (PRE-ORDER): a biochemist whistleblower reveals an impossible and distressing persistence of life — pdf | print
Ex Oblivione: something evil stirs in a tiny desert town…HOME DAGON HOME HOME YHANTHLEI SEA TO THE SEA — pdf | print
Extremophilia: a scenario of horror and strange wonders in Montana — pdf | print
Future/Perfect, Part 1: an introductory investigation of murders in Death Valley — pdf
Future/Perfect, Part 2: mysteries congeal around death and insanity in a small Ohio town — pdf
Future/Perfect, Part 3: investigation of a secretive corporation leads to a menace that may unravel…everything — pdf
Future/Perfect, Part 4: the Agents reach the deadly heart of threats and schemes that are entangled through time and space — pdf
Grace Under Pressure (PRE-ORDER): a revolutionary 1991 sea-bottom laboratory makes one startling discovery too many — pdf | print
Holy War (PRE-ORDER): a conflict between awful forces erupts in New York in the era of The Conspiracy — pdf | print
Hourglass: innocence feeds appalling appetites in a small Oregon town — pdf | print
Jack Frost: a lethal snowstorm in 1998 Alabama draws a MAJESTIC team to investigate and cover it up, if they survive — pdf | print | roll20 | foundry
Kali Ghati: a scenario featuring terrors in Afghanistan — pdf | print
The Last Equation: a fascinating discovery leads to incomprehensible violence — pdf | print
Lover in the Ice: a horrific investigation of predation and violation in a city crippled by a snowstorm — pdf | print
Music From a Darkened Room: a terrifying exploration of a place gone very bad — pdf | print
The New Age (PRE-ORDER): investigating a politician’s strange death leads to a cult with shocking powers — pdf | print
A Night on Owlshead Mountain (PRE-ORDER): alien intelligences leave remnants that still hunt the Vermont hills — pdf | print
Observer Effect: in which physicists look too closely at the nature of reality — pdf | print
Operation FULMINATE (The Sentinels of Twilight; also in the Handler’s Guide): in which the Agents learn that not all that is lost should be found — roll20 | foundry
Puppet Shows and Shadow Plays: a series of brutal and baffling killings leads new FBI agents to the horrors of Delta Green — pdf | print
PX Poker Night: strange and lethal forces descend upon a lonely Air Force base’s one good night of the week — pdf | print
Reverberations: a party drug from the Nineties returns to expose minds to wonders and terrors better unperceived — pdf
The Star Chamber: a scenario of conflicting narratives of terror — pdf | print
Sweetness: a happy family faces a devastating threat — pdf
A Victim of the Art: a serial killer terrorizes a seaside town — pdf | print
Viscid: a secretive geneticist bring wonders and horrors to life — pdf | print
Call of Cthulhu Sourcebooks
All can be easily run with Delta Green: The Role-Playing Game.
Delta Green (1997) — paperback, hardback and pdf
Delta Green: Countdown (1999) — paperback, hardback and pdf
Delta Green: Eyes Only (2007) — paperback | pdf
Delta Green: Targets of Opportunity (2010) — hardback | pdf
Novels, Anthologies, and Others
Alien Intelligence (1998) — paperback and pdf
Dark Theaters (2001) — paperback and pdf
Denied to the Enemy (2004) — paperback | ebook
Extraordinary Renditions (2015) — hardback | paperback | ebook
The King in Yellow: Annotated: a paperback edition of Robert W. Chambers classic of terror and romance with deeply researched annotations by Kenneth Hite — pdf | ebook | print
The King in Yellow Tarot (PRE-ORDER): a wicked deck of cards conceived by John Scott Tynes and Daniel Harms and illustrated by Kurt Komoda — pdf | print
The Rules of Engagement (1999) — paperback
Strange Authorities (2012) — hardback | paperback | ebook
Tales from Failed Anatomies (2014) — hardback | paperback | ebook
Through a Glass, Darkly (2011) — hardback | paperback | ebook
The Way It Went Down (2018) — hardback | paperback | ebook
The Way It Went Down, Vol. 2 (2023) — paperback | ebook
The Whisper Labyrinth (PRE-ORDER): a hardback collection of John Scott Tynes’s stories of the King in Yellow, “Ambrose,” “Broadalbin,” and “Sosostris” — audio | pdf & ebook | print
The Yellow Sign Clasp (PRE-ORDER): A clasp of the Yellow Sign to pin on your lapel. — clasp
Short Stories
“Final Report” (1994) — web
“My Father’s Son” (1997) — web
“An Item of Mutual Interest” (1997) — web
“Down in the Delta” (2013) — pdf
“Drowning in Sand” (1997) — audio
“In the Court of the Yellow King” (1993) — pdf
“Intelligences” (2011) — web | audio
“Punching” (2011) — web | audio
“Philosophy” (2011) — web | audio
“The Thing in the Pit” (2013) — audio
Magazine Articles and More
The Unspeakable Oath 7 (1992) — paperback
The Unspeakable Oath 14/15 (1997) — paperback
Shadis 52 (1998)
The Unspeakable Oath 16/17 (2001) — paperback
Cthulhu Live: Delta Green (2001) — paperback
The Black Seal 1 (2002) — pdf
The Black Seal 2 (2003) — pdf
The Black Seal 3 (2004) — pdf
Machine Tractor Station Kharkov-37 (2004) — paperback | pdf
Worlds of Cthulhu 1 (2004) — paperback
Worlds of Cthulhu 2 (2005) — paperback
Worlds of Cthulhu 3 (2005) — paperback
Worlds of Cthulhu 4 (2006) — paperback
Dubious Shards (2006) — pdf
Worlds of Cthulhu 5 (2007) — paperback
Worlds of Cthulhu 6 (2009) — paperback
The Unspeakable Oath 18 (2010) — paperback | pdf | kindle
The Unspeakable Oath 19 (2011) — paperback | pdf | kindle
The Unspeakable Oath 20 (2011) — paperback | pdf | kindle
The Unspeakable Oath 21 (2012) — paperback | pdf
The Unspeakable Oath 22 (2013) — paperback | pdf
The Unspeakable Oath 23 (2013) — paperback | pdf
The Unspeakable Oath 24 (2014) — paperback | pdf
The Unspeakable Oath 25 (2018) — paperback | pdf
History of the Conspiracies
Originally a unit of the Office of Strategic Services (the forerunner of the Central Intelligence Agency), Delta Green continued as a project of the National Security Council after the OSS shut down. Delta Green was officially disbanded and its activities made patently illegal after a disastrous operation in 1969. But its members carried on. For three decades they acted without the cover of authority, a criminal conspiracy to confront the horrors that threaten mankind.
During the Global War on Terror, Delta Green was reactivated as a tightly-restricted black project. A handful of control officers are authorized to form task forces of agents drawn from across the executive branch: FBI agents, special forces operators, CIA officers, civilian contractors, and more.
Only individuals within Delta Green are allowed to know what its operations are for. Of course, some officials who lack clearance still expect hints — especially when their agents vanish on Delta Green operations and never return. They are allowed by winks and nods to understand that it’s a high-level counterterrorism program. It is not. Delta Green agents fight, conceal, and collect intelligence on things that man was not meant to know.
Since the program was reactivated, Delta Green agents have access to more official resources and contacts than ever. But they are subject to greater risks of scrutiny — and therefore the risk (some say the certainty) of their discoveries and operations being put to, let’s say, unanticipated use. As the old saying goes, be careful what you wish for.
Recognizing that risk, many agents and operatives from the old days refused to come in from the cold. Those outsiders continue their crusade in secrecy, without oversight and without sanction, willing to break every law and moral code to fight horrors that nobody can comprehend.
Publishing History
Delta Green features modern investigators confronting the horrors and terrible mysteries of the Cthulhu Mythos. It was first conceived by John Tynes (now John Scott Tynes) in a 1992 issue of the acclaimed gaming magazine The Unspeakable Oath. In 1997, Pagan Publishing released Delta Green in 1997, an Origins Award-winning sourcebook for Call of Cthulhu, written by Tynes, Adam Scott Glancy, and Dennis Detwiller. They followed it with an Origins Award-winning sequel, Delta Green: Countdown, in 1999. Shane Ivey joined Glancy and Detwiller to produce the Origins Award finalist Delta Green: Eyes Only in 2007. Kenneth Hite and Greg Stolze joined Detwiller, Glancy, and Ivey to create the ENnie Award-winning Delta Green: Targets of Opportunity in 2010. There have been several books of fiction, including the Origins Award-winning Delta Green: The Rules of Engagement. Delta Green and Delta Green: Countdown have been among the highest-rated RPG book of all time on RPG.net since RPG.net launched its ratings index in 2006. On RPGGeek.com, Delta Green and Countown are consistently in the Top 10 RPG products and often both in Top 5.
The standalone Delta Green roleplaying game was written by Dennis Detwiller, Adam Scott Glancy, Christopher Gunning, Kenneth Hite, Shane Ivey, and Greg Stolze, and edited by Detwiller, Ivey, Hite, and John Scott Tynes.
Awards
Delta Green has won three Origins Awards and 13 ENnie Awards.
Delta Green: Impossible Landscapes won the gold ENnie Award for Best Design & Layout, 2022
Delta Green: The Labyrinth won the gold ENnie Award for Best Supplement, 2020
The Fall of Delta Green won the gold ENnie Award for Best Setting, 2019
Delta Green: The Role-Playing Game won gold ENnie Awards for Best Rules and Best Production Values and silver for Best Game and Product of the Year, 2018
Delta Green: A Night at the Opera won the gold ENnie Award for Best Electronic Book and silver for Best Adventure, 2018
Delta Green: Agent’s Handbook won the silver ENnie Award for Best Supplement, 2016
Delta Green: Need to Know won the gold ENnie Award for Best Free Game, 2016
Delta Green: Targets of Opportunity won silver ENnie Awards for Best Adventure and Best Writing, 2010
Delta Green: The Rules of Engagement won the Origins Award for Best Game-Related Novel, 1999
Delta Green: Countdown won the Origins Award for Best Roleplaying Supplement, 1999
Delta Green won the Origins Award for Best Roleplaying Supplement, 1996