Delta Green is a setting for the Call of Cthulhu role-playing game. Set in the modern day, characters are members of a renegade secret United States government organization – itself named Delta Green – dedicated to combating the horrors of the Cthulhu Mythos. The concept was introduced in the seventh issue of "The Unspeakable Oath ", a Call of Cthulhu fanzine, in early 1993. Four years later, the Delta Green supplement appeared and spawned a number of its own supplements and novels.

The premise is similar to the X-Files, drawing on the federal alphabet soup folklore, UFO conspiracy theory, the Nazi Ahnenerbe organization, and other modern legends in addition to the Cthulhu Mythos.

From a game perspective, the purpose of Delta Green is to provide character groups with motivation, resources, a reason for working together, and a source of replacements for characters who go mad or die.

In 1998, Delta Green won the Origins Award for Best Roleplaying Supplement of 1997. The setting also won two awards in 2000, Best Game-Related Novel of 1999 for Delta Green: The Rules of Engagement and Best Roleplaying Supplement of 1999 for Delta Green: Countdown.

As of beginning of 2005, following Delta Green books were published:

by Pagan Publishing :

• Delta Green – the basic sourcebook;
• Delta Green: Countdown – 1999, by John Tynes, Dennis Detwiller and Adam Scott Glancy, ISBN 1-887797-12-2 – the 2000s sourcebook;
• Delta Green: Alien Intelligence – March 1998, ISBN 1-887797-09-2 – short stories collection;
• Delta Green: Dark Theatres – short stories collection;
• Delta Green: Rules of Engagement by John Tynes – a novel;
• Delta Green: Denied to the Enemy by Dennis Detwiller – a novel, set during World War II;
• Delta Green Eyes Only Volume 1: Machinations of the Mi-go – ISBN 1-887797-13-0 – limited edition game supplement;
• Delta Green Eyes Only Volume 2: The Fate – limited edition game supplement;
• Delta Green Eyes Only Volume 3: Project Rainbow – ISBN 1-887797-21-1 – limited edition game supplement;

by Fantasy Flight Games:

• Cthulhu Live: Delta Green – ISBN 1-887911-43-X – Live Action RPG supplement.

External links

• Delta Green Wiki