Delta Green, a game of modern Mythos horror

Delta Green on Discord, Foundry VTT

Delta Green


Foundry VTT

About the adventure

Players come to Delta Green for all kinds of reasons. They’re eager to solve a mystery, kill a villain, or destroy a monster. These outcomes are never simple. Sometimes even seeing the threat in a Delta Green operation is enough to annihilate a group of Agents. So consider this overview a warning. Delta Green is about fear. It may seem to be about other things from time to time. About manipulation. About power. About control. It has all these things, but that’s not what it’s about. It lies. Delta Green is about an agent, alone and off the record, breaking into an old woman’s house in Brooklyn because, for a split-second, she cast the shadow of a hunched, monstrous thing with jaws like a jackal. Delta Green is about two women who pulled off the heist of the Mayan Codex from the American Museum of Natural History—an operation six months in the planning—only to burn it in a pyre of gasoline and wood in an abandoned field, mourning their lost teammates who it drove to madness. Delta Green is about watching from the Blackhawk jumpseat as something bigger than the forest snatches your strike team’s helicopters from the air like flies. Delta Green is not about guns. Delta Green is not about a bug hunt. Delta Green is not about understanding. Delta Green is about the end. The end of everything. Your family, everyone you know, your country, all life on Earth. It’s about the end of everything and your place in it. Because you’ll end, too. That’s what the fear is about. That’s what the game is about. It’s not about winning and it’s not about advancement and it’s not about the best weapon or the most clever plan. Delta Green is about the end of everything—and how much of it you’ll live to see. Welcome.

Professional Game Master

The Sinister Storyteller (Charles Ulveling)

33 Reviews


23 years as a TTRPG player

20 years as a Game Master

225 games hosted

Brings Mutants & Masterminds, 13th Age, Delta Green, Alien RPG, Forbidden Lands, Pathfinder 1e/2e, Hunter: the Vigil, Symbaroum, Coriolis, Night's Black Agents, Exalted Essence to the table

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Additional Details

How to prepare

While it is optional, you can download and familiarize yourself with Need to Know, which is the quickstart supplement. It is pay what you want at (, but be forewarned: the scenario Last Things Last is contained in the back of the quickstart. DO NOT READ THE SCENARIO, lest you ruin the experience for yourself. Furthermore, you will need to create a free Forge account, which can be done here: You must have a microphone, and headphones are preferable.

What I provide

As this is a virtual game, you need only bring yourself.

Gameplay details

Delta Green uses a percentile system. Roll d100, and succeed on a result equal to or less than your skill rating. That's it!

Content warnings


Safety tools used


How will character creation work

Pregenerated characters will be provided, tailor-made for the scenario.

Players can expect

  • Combat/Tactics: Medium
  • Roleplay: Medium
  • Puzzles: High
  • Experience Level: Open to all

Player reviews (33)

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Delta Green, a game of modern Mythos horror

33 Reviews

Price per player-session
You will be charged when a session starts


  • Duration: 3 to 4 hours
  • Number of players: 2 to 6 players
  • Experience required: Open to all
  • Glowing demon knight leading an army of undead

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