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Tag: gumshoe

Live-Read: The Mechanism

This post is a cleaned up version of a live-read Twitter thread I posted today; I’ve been doing those as the mood takes me, and it’s a kind of fun, lazy way to review tabletop RPGs. My wise friend Ginger noted that I should be collecting these on the blog. I half-thought I had been but I was wrong! Thus, here we go. (It might be entertaining to compare my speed-written text with what happens after I have a chance to re-read it and wince at my clumsier phrases.)

I just received “The Mechanism,” a Night’s Black Agents convention scenario by Gareth Hanrahan, as a bonus with one of my other Pelgrane Press orders. As I read the first scene, I realized the loosely written approach was interesting to me, so I figured I’d share.

ToC Conversion: Bad Company

I picked up a bunch of Cthulhu Britannica material in a Bundle of Holding sale a while back. Glad I did, since Cubicle 7 has pulled the line after their license expired. As a sort of a warm up exercise for my efforts to write more, I started working through the original book to convert the adventures into Trail of Cthulhu.

It’s unclear how many I’ll get through, but I had an excellent time converting the first scenario, Bad Company. The work necessary to understand and adapt the scenario turned out to be a great way to internalize the material. Wish I had a good place to run it; alas, it doesn’t fit into my current campaign.

The All-In Wrestlers of 1930s London

True fact: tens of thousands of Londoners happily attended professional wrestling shows during the 1930s. This resurgence in the “sport” was thanks to one Sir Edward Atholl Oakeley, whose autobiography I really gotta read. (In his later years, long after his wrestling career ended, he became the 7th Baronet of Shrewsbury. Wild life story.) He dubbed his wrestling style “All-In,” since it allowed for wrestlers from a variety of traditions. Sir Oakeley always maintained he was promoting real sporting matches, but given that US pro wrestling had already become mostly staged by 1930, it seems pretty likely that All-In wrestling matches were also fixed.

This phase of British professional wrestling history lasted under a decade. By 1940, the quality of the wrestling had degenerated as demand rose. It became more a spectacle, less a sport, and unacceptable in the eyes of civil society. By the time promoters were running mixed gender matches, judges were handing down decrees preventing public shows.

Let’s talk about gaming!

GUMSHOE: Stanhopes

In 1857, a French photographer named René Dagron combined the hot new fad of microphotography and a 50 year old magnifying device called a Stanhope lens to come up with a simple inexpensive way of embedding tiny photographs into a wide range of gewgaws. Stanhope lenses are small enough to embed within rings, watch keys, pocket knives, charms, and so on. Dagron was also an entrepreneur: he ran a mail order business selling the things. Since they were cheap enough to market as souvenirs, they became fairly common fairly quickly.

The images are remarkably clear and detailed despite their tiny size. One could, hypothetically, put quite a bit of text in one of these. During the Franco-Prussian War of 1870, Dagron refined his microphotography process to generate carrier pigeon messages. This usage didn’t require Stanhope lenses in reality. Who knows what might have happened in a slightly different time stream?

The fad was mostly over by World War I, but there are plenty of the things floating around during the 1930s era of Trail of Cthulhu. If you’re running a Night’s Black Agents game, you’ll be happy to know that Stanhopes still turn up all the time in the wild in 2018. Also fun: it’s not obvious when an object has a Stanhope embedded within it. The photographs are 1/10th of an inch in diameter and a mere quarter of an inch long; modern collectors often miss the presence of a Stanhope. This makes them awesome as unexpected surprises for an investigatory game.

Based on a few hours of Web surfing, I can’t find any evidence that anyone put a Stanhope into a book spine — but someone really should have. This is an easy Bookhounds of London hook. The book itself is something anodyne and unremarkable, but the spine contains images of a horrible crime. Who took them? Why were they preserved in this manner? What’s casting that terrifying shadow in the background?

For a conventional Trail of Cthulhu game, stick the same images in a more traditional Stanhope carrier. Want something more outré? Consider the pocket knife with a small glass aperture at one end. If you look into the glass aperture, what looks back out at you? The Stanhope brooch is the only path this creature has to reach the outer world, and it’s been trapped in there for decades. It will not be grateful to you.

Wait: this Stanhope shows a moving picture. Something strange. It’s the Dreamlands, or Carcosa if you’re into Hastur.

For Night’s Black Agents, a Stanhope would be a great way to introduce a picture of a prominent NPC. Who, of course, looks the same in the picture as he does now. Most photographic evidence of his earlier life was destroyed, but Stanhopes are easy to miss. Or you can go straight espionage, and have one contain microfilm as an information carrier. Also, since we’re talking vampires, I should note that there were plenty of Stanhopes built into crosses. One common cross had seven Stanhopes in it, each one depicting one of the Seven Sorrows of the Virgin Mary. Any vampire game ought to be able to do something useful with that.

Skill-wise, a Trail of Cthulhu character needs Art History or a Evidence Collection spend to notice one of these things. Craft could also work given the right specialty. Bookhounds could use Document Analysis. For Night’s Black Agents, a Notice spend can stand in for Evidence Collection. Art History remains preferable — give those PCs some payoff for all those years spent in museums.

There’s a book on these, which looks really interesting but I’m not sure about giving into temptation. It has pictures, though. Tempting.

2017 Campaigns 1 of 5: The Golden Pyramid

Nights Black Agents campaigns are built using a diagram which represents the classic conspiratorial pyramid structure. It’s called a Conspyramid. The mastermind squats at the top, with minions at various levels beneath. PCs discover the fringes of the conspiracy, and work their way up as the campaign goes on.

The following diagram is a satire. Who would believe that Peter Thiel is secretly influencing 4chan, or that Steve Bannon controls Breitbart News?

Parallel Evolution

Years apart, actual quotes. It’s interesting how two of my favorite designers approached the same problem.

Unlike a lot of games out there, InSpectres didn’t start as an idea for a cool setting or anything like that. What I wanted to do was try designing a game that “fixed” some problems I saw in similar games that dealt with investigation (no names, please). That problem is what I call the “murder mystery” plot. Basically, it goes like this: the players stumble across a mystery of some sort. The GM then provides clues (in the form of helpful or not-so-helpful NPCs, scraps of forensic information or first-hand knowledge of the event). If the players are smart, they’ll figure it out. If not, then the GM has to guide them along until they do figure it out. In effect, it becomes an exercise for the GM in which the players are guided down a pre-built track and react to stuff that pops up along the way (not unlike a funhouse ride). In the end, the game succeeds or fails on the merits of the GM running that game.

What this game does is to allow the GM to set up the events, but then have the players (through their characters) decide what is really going on. The GM then reacts to the players and what they see as intriguing or exciting elements of the story.

The other thing I wanted to do was to set up a play structure (the series of events that occurs in each game session). Using this play structure as a guide, the GM and players know what is expected of them at various stages of the game. The fun, of course, comes from doing stuff in each stage.


Investigative scenarios have been done wrong since the early days of roleplaying games. As a consequence, they’re hard to run and prone to grind to a halt. GUMSHOE is here to fix all that.

What’s wrong about the traditional way of doing investigative games? They’re based on a faulty premise. Story-based roleplaying, of which investigative games were an early if not the earliest example, evolved from dungeon-bashing campaigns. They treat clues the same way that dungeon games treat treasure. You have to search for the clue that takes you on to the next scene. If you roll well, you get the clue. If not, you don’t — and the story grinds to a halt.


In a fictional procedural, whether it’s a mystery novel or an episode of a cop show, the emphasis isn’t on finding the clues in the first place. When it really matters, you may get a paragraph telling you how difficult the search was, or a montage of a CSI team tossing an apartment. But the action really starts after the clues are gathered.

GUMSHOE, therefore, makes the finding of clues all but automatic, as long as you get to the right place in the story and have the right ability. That’s when the fun part begins, when the players try to put the components of the puzzle together.


Every investigative scenario begins with a crime or conspiracy committed by a group of antagonists. The bad guys do something bad. The player characters must figure out who did it and put a stop to their activities.

If you use the GUMSHOE rules for straight-up crime drama, the team investigates a crime, finds out who did it, and puts the culprits under arrest.

In the Esoterrorist setting, the team investigates an occult conspiracy, finds out who did it and why, and takes action to end the occult manifestations. They may detain or kill the Esoterrorists behind it. They may destroy any supernatural creatures or effects generated by the conspiracy. Or they might turn over the information gained in their investigation to a specialized Ordo Veritatis clean-up team, who ruthlessly and efficiently dispose of the guilty parties and their workings.

Your GM designs each scenario by creating an investigation trigger, a sinister conspiracy, and a trail of clues.

I’ve enjoyed both GUMSHOE and InSpectres. Both Jared and Robin identify the clumsiness of a GM leading players to clues by the nose. Jared doesn’t like the part that comes afterwards; Robin does.


This post has an expiration date, which is approximately three days from publication. Reading it after 9/28? You missed out.

The current Bundle of Holding is for a bunch of GUMSHOE games and it seemed worth going over what you get. It might appear that there’s a lot of duplication in the bundle, since all four of the full RPGs are based on the same ruleset. Not so!

Night’s Black Agents is the easy sell: technothrillers meet vampires. Spy action, bloodsuckers, Ronin and Alias and so on. You get the basic GUMSHOE rules tuned for action, which had not been a particular strength until this point. Also you get The Zalozhniy Quartet which is probably a solid 8-12 sessions of play, at a guess. Maybe more.

So why do you also want Mutant City Blues and the associated Hard Helix adventure? Not for the superpower rules. (Sorry.) They are a bit idiosyncratic and highly world specific. You do, however, really want the detailed description of running a GUMSHOE game as a police procedural: interrogation scenes, what a police station is like, all that good stuff. Mutant City Blues is the GUMSHOE game you’d use to run Criminal Minds or CSI.

Fear Itself is a sweet minimal GUMSHOE implementation that does a decent job on slasher films. All the other versions of GUMSHOE in this bundle deliver competent characters. Fear Itself delivers teenagers.

Finally, Ashen Stars is a cool extension of the investigative procedural engine to cover episodic SF. The included setting is solid, but you could also use this to run Star Trek (of course) or Firefly. Or anything where there’s a spaceship, or a set of portals leading to strange worlds, or some kind of time machine masquerading as a common street object, and the player characters travel around dealing with mysterious problems.

In other words, there’s plenty of overlap but there’s also plenty of unique content and you will absolutely learn something about the system from each of the four games. Since you also get a bunch of Robin Laws columns, this is a no-brainer. You also get the Ken Hite subscription but come on, that’s an evil trap. Half of that stuff is Trail of Cthulhu oriented which will make you want to buy that game too. (You should buy that game too.)

Building Blocks

I’m still trying to fuse the brilliant combat engine from D&D 4e with the brilliant narrative engine from Gumshoe. You may not have known I was trying to do this. But I am.

Let’s skip over the skills question for now and pretend that we have a Gumshoe adventure all mapped out, with the multiple paths and the clues and the major and minor scenes. It’s a flowchart, basically. None of these scenes are directly combat-related, although it may require combat to reach a given scene. Here, have a PDF example. Contains spoilers for the Esoterrorists sample adventure, though!

Now: for each scene, we may (not must) attach either a prerequisite combat, a resulting combat, or both. A prerequisite combat is a fight you need to engage in, or possibly win, in order to get to the clue scene. The clue scene might be really brief; e.g., maybe the fight happens and one of the combatants has the clue on him. Or, say, you have to fight through the kobolds to get to the secret lair in which more information is available.

A resulting combat is when they come after you for finding a clue. Actions have consequences. I think it’s important to make the linkage super-clear for the best narrative effect.

The idea is that by strongly pairing investigative scenes and combat scenes, you reduce any chance that the players will feel like they’re playing two different concurrent games with the same set of characters. This is just a theory right now. I should probably test it sometime.

Another tangential note: you could maybe keep skill challenges as long as you went with the current WotC approach, which is that failed skill challenges result in problems rather than failures. This is attractive in that skill challenges seem to be cool, but I think it’s too much of a departure from the Gumshoe skill model. Or you could ditch the Gumshoe model altogether and make clue acquisition into skill challenges? I don’t know how to run skill challenges well enough to do this, however.