Deception is a right. Truth is a privilege. Innocence is a luxury. Born of the U.S. government’s 1928 raid on the degenerate coastal town of Innsmouth, Massachusetts, the covert agency known as Delta Green spent four decades opposing the forces of darkness with honor, but without glory. Stripped of sanction after a disastrous 1969 operation in Cambodia, Delta Green’s leaders made a secret pact: to continue their work without authority, without support, and without fear. Delta Green agents slip through the system, manipulating the federal bureaucracy while pushing the darkness back for another day — but often at a shattering personal cost.

Operational Intelligence

Jack Frost Comes to Town Again

In 1999 I wrote “Jack Frost,” a Delta Green adventure about horrors in the dead of winter in rural Alabama. The road sign is plain and green, the sort mandated by state law and never supplemented with anything more decorative: “Willis, Ala.,” it reads, “P
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The Unmasking

This adventure is an attempt at a sequel to my favorite scenario “The Evil Stars” by Keith Herber from Cthulhu Now. I’ve also Delta Green’d it and reconciled the old Hastur references to the John Tynes version of the Hastur Mythos from Countdown. Background In
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TEKELI LI, by Dennis Detwiller

Creating Scenarios and Maintaining Horror in ‘Call of Cthulhu’

Written by Dennis Detwiller, © 2013 I receive a lot of email about my gaming methods in Call of Cthulhu. It’s nice to be known as a heartless killing machine when it comes to Keeperdom; I take it as a compliment. Many people have praised or complained about my style of scenario creati
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The Unspeakable Oath 22

Investigation Needed: ‘Unspeakable Oath’ Subscription Drive

ATTENTION: All Agents and Friendlies The magazine The Unspeakable Oath is a well-known repository of esoteric and often dangerous lore and art. Its publishers and contributors have been on Delta Green’s watch list for many years. They recently launched a subscription drive seeki
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Apollo 20

Post written by Dennis Detwiller, © 2013 Apollo 20 is a hoax that’s been on the internet since 2007. Here’s how to use it in your Delta Green game. For those who have never heard of it, the story of “William Rutledge” is interesting and ultimately completely un
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