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Delta Green: Extremophilia

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DO YOU WANT TO LIVE FOREVER?A secretive research company has developed a miracle drug, only to learn that every miracle has its price. Delta Green agents may be the ones to pay it. Delta Extremophilia brings the agents to Helena, Montana, where people are going insane and dying of a bizarre fungal infection. But this is no fungus that ever evolved on Earth. It’s something far older, far stranger, and far more dangerous. Can the agents stop the spread of this terrifying threat? Or will they become just another vector for the disease?Gather your players. Horror, suspense, intrigue, death, and strange wonders await.Delta Extremophilia is a scenario for Delta The Role-Playing Game. It is playable with Delta Need to Know or Delta Agent's Handbook, available from Arc Dream Publishing.

36 pages, Paperback

Published October 4, 2017

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About the author

Shane Ivey

57 books21 followers
Managing editor and president of Arc Dream Publishing, www.arcdream.com.

Editor-in-chief of The Unspeakable Oath, www.theunspeakableoath.com.

Editor of Delta Green, www.delta-green.com.

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Displaying 1 - 3 of 3 reviews
Profile Image for Benjamin.
1,472 reviews24 followers
Read
July 12, 2023
How? I love Pagan Publishing and Arc Dream (companies) and their Delta Green RPG, which started as a Call of Cthulhu frame and is now its own standalone RPG.

What? A LEO dies from massive heavy metal poisoning.

Why? (For Delta Green, I think it's interesting to discuss the premise and implied story of the adventure, so: spoilers.) Bad guys in the DG world (ex-gov who wanted to sell out humans to the aliens, but are now kinda on the outs) have some sample of alien material that they have been growing in a toxic lake from a mine, and now that material is infecting some people. That's why the sheriff died and why a few more people might die if the PCs don't stop the alien fungal (mi-go) infection -- and maybe more if the PCs don't stop the bad guys from getting out with the alien sample.

Yeah, so? It's a classic premise -- it's practically "Colour out of Space": an infection is threatening people. The classic DG premise on top of that is that it's not just alien lifeforms that are dangerous, it's how _people try to advance themselves using the aliens_. Like many of the Arc Dream recent adventures, this is essentially a sandbox: there's NPCs who know or might be clues, there's locations where things can be sussed out. The only thing that's sort of a given is a chase up a mountain to ... well, I confess, here I sort of lose the thread a bit: a person who is no longer a person wants to go up with the Star People. Seems reasonable to me. In (again) classic DG style, almost all you can do is witness the horror, which is bad for you. Better to not know at all. Which is good thematics, but not sure how it plays out at the table.

Profile Image for Taddow.
677 reviews6 followers
July 18, 2024
This is a great sandbox-style investigation scenario. There is an interesting plot, several locations and key individuals described and noted with what clues they can provide and what their motivations are. There are a variety of encounters, combat and non-combat, that contribute to success, so a variety of character types can find use and the competing interests of some of the described factions/parties makes for a great conflict and conspiracy.

I don’t want to give out any spoilers, so I have made my review pretty generic, though I would like to note (SPOILER) that I would have given this 5-stars if the end game for the main person of interest and the mother and baby were more fleshed out/had more impact. I felt these were great for strange filler to enhance the story and/or maybe as a path to further a future linked adventure but otherwise their value was only in setting the stage and providing some clues, but didn’t really contribute much afterward. I would still recommend this as a scenario to play for Delta Green (or convert to a similar-style RPG).
Profile Image for Mikael Cerbing.
663 reviews5 followers
January 22, 2026
Read, not played.

This seems to be quite a hard adventure both to play and to run. But I also think it is a very good adventure. Would not play it with players that not have quite a few investigative games under their belt doe. Because they will need to be able to think quite a bit about what to do and how. At least if they want go "win". And I like that its a time limit on some things. You will need to split that party my friends.
Displaying 1 - 3 of 3 reviews