In Delta Green, the cosmic horror of the Cthulhu Mythos meets modern-day technothriller conspiracy.
For many years Delta Green was produced as a setting for Call of Cthulhu, the popular horror roleplaying game published by Chaosium, Inc. Call of Cthulhu is a game about mystery, discovery, and horror, in which ordinary men and women slowly unravel terrible mysteries about the utterly alien powers at work in the universe. Based on the writings of Jazz-era author H.P. Lovecraft and a number of authors who wrote stories based on his Cthulhu Mythos, Call of Cthulhu is typically set in the 1920s, and its scenarios have always been written with a small group of investigators, largely without organization or resources, in mind.
Delta Green brings the Cthulhu Mythos, and the men and women who encounter it, squarely into the modern day. Delta Green postulates a secret, unauthorized group dedicated to investigating alien and supernatural horrors, misappropriating the resources of the U.S. government to do so. Originally a unit of the Office of Strategic Services (the forerunner of the Central Intelligence Agency), Delta Green is now officially disbanded, its activities patently illegal; but its members carry on no matter what the cost, desperately facing the horrors that threaten mankind.
First conceived in a 1992 issue of Pagan Publishing’s acclaimed gaming magazineThe Unspeakable Oath, Delta Green was published as an Origins Award-winning sourcebook in 1997. It was followed by an Origins Award-winning sequel, Delta Green: Countdown, in 1999, the Origins Award finalist Delta Green: Eyes Only in 2007, the Ennie Award-winning Delta Green: Targets of Opportunity in 2010, and several books of fiction.
As of 2012, Delta Green has been the highest-rated RPG book of all time on RPG.net since 1997. Delta Green: Countdown has held the No. 2 spot since 1999.
New works for Delta Green are published by Pagan Publishing and by Arc Dream Publishing. A standalone roleplaying game is now in development.
CALL OF CTHULHU SOURCEBOOKS
- Delta Green (1997) — paperback
- Delta Green: Countdown (1999) — paperback
- Delta Green: Eyes Only (2007) — paperback
- Delta Green: Targets of Opportunity (2010) — hardback
FREE SCENARIOS
- “Call of Duty” (1997) — pdf
- “PX Poker Night” (1997) — pdf
- “A Victim of the Art” (1999) — pdf
- “Night Floors” (1999) — pdf
- “Music From a Darkened Room” (2005) — pdf
- Future/Perfect parts 1-3 (2005) — pdf
- Future/Perfect part 4 (2006) — pdf
- “The Last Equation” (2011) — pdf
NOVELS AND SHORT STORIES
- “Final Report” (1994) — web
- “My Father’s Son” (1997) — web
- “An Item of Mutual Interest” (1997) — web
- “Drowning in Sand” (1997) — pdf
- “The Secrets No One Knows” (1997) — pdf
- Alien Intelligence (1998) — paperback
- The Rules of Engagement (1999) — paperback
- Dark Theaters (2001) — paperback
- Denied to the Enemy (2004) — paperback | ebook
- Through a Glass, Darkly (2011) — hardback | paperback | ebook
- “Intelligences” (2011) — web
- “Punching” (2011) — web
- “Philosophy” (2011) — web
- Strange Authorities (2012) — hardback | paperback | ebook
MAGAZINE ARTICLES AND OTHER RESOURCES
- The Unspeakable Oath 6 (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
- The Unspeakable Oath 19 (2011) — paperback | pdf
- The Unspeakable Oath 20 (2011) — paperback | pdf


