A Taxonomy of Genre Conventions

Interactive FictionLive GameTabletop

The map of what each genre promises its audience, and the one promise that breaks first when the genre goes interactive.

Open a horror story and you have already agreed to be frightened. Open a fair-play mystery and you have agreed to play detective, with a fair chance to win. Open fantasy and you have agreed to believe in magic on the one condition that the magic behaves. None of this is written down anywhere. Yet break it and the reader feels cheated in a way they can name precisely. Each genre is a handshake done before the first sentence. The work then spends the rest of its length keeping the terms.

This article does not teach any one genre. It maps the space. The seven craft articles beside it go deep on mystery, horror, fantasy, science fiction, historical fiction, children’s and young-adult work, and the way tropes migrate between all of them. What the map adds is the thing you only see from above. Every genre is a contract. Every contract has one clause that bears most of the weight, and that load-bearing clause turns out to be exactly the one the interactive medium strains hardest. Knowing which clause it is, before you start, tells you where your work will break.

The Mechanism (How it works)

A genre is a contract, not a checklist

The tempting way to think about genre is a list of furniture. Horror has monsters, fantasy has wizards, mystery has a corpse in the library. That list takes you nowhere. The furniture is the easy part. Copying it produces work that is technically the genre while satisfying no one. The useful unit is the promise underneath the furniture. A genre is the set of expectations a reader brings to the first page. The craft is the work of meeting them. Horror’s monster is incidental. Horror’s promise is that you will feel genuine dread and that the threat is real. A story can keep that promise with no monster at all. A story stuffed with monsters can break it on the first cheap scare.

Reading genre as a contract changes what you watch for. Instead of “does this have the right parts?” the question becomes “which promise am I making, and am I keeping it?” The promise is specific to each genre and surprisingly precise. The table below names seven of them. Its columns run genre, then the reader contract stated as a promise, then the one craft lever that does most of the work of keeping that promise (the clause that bears the load), then the sibling article that goes deep on the craft. This is the legitimate place for a table, because the contract and its load-bearing lever are genuinely two columns of data per genre, and prose would bury the parallel that the whole map exists to show.

Genre	Reader contract (the promise)	Load-bearing craft lever	Goes deep in
Mystery & detective	The clues are all fairly present; the solution is surprising yet inevitable, and an attentive reader could in principle solve it.	Fair-play clue placement: every necessary clue visible, misdirection allowed but never withheld information.	Mystery & Detective Fiction
Horror	You will feel real dread. The threat is genuine and death is possible, yet the fear is earned rather than cheaply bought.	The dread-and-shock rhythm plus a felt-vulnerability layer (sanity, scarcity, real death) so the reader is never safe.	Horror Conventions
Fantasy	The invented world holds together; magic obeys rules and cannot rescue a plot the reader does not understand.	Establishing the magic’s limits, costs and rules before magic resolves any conflict (the hard-versus-soft choice).	Fantasy Conventions
Science fiction	One impossible premise is granted; from there the consequences are followed without cheating, and the rules are set early.	The single accepted premise (the novum) and its ripple effects, with invented jargon as flavour rather than a fix-all.	Science Fiction Conventions
Historical fiction	The large historical truth is kept; period texture immerses without anachronism breaking the spell.	The research-to-display ratio (know far more than you show) plus anachronism control across word, tech and idea.	Historical Fiction
Children’s & YA	Full craft quality, never written down to; the agency is real and meaning comes from consequence, never from a marked “right” choice.	The middle-grade / YA split (find yourself at home versus leave home) and strict anti-didacticism.	Children’s & YA Conventions

The seventh strand is not a genre in this sense at all. Tropes and archetypes are the connective tissue that runs across every row, so they live in their own article, Tropes, Archetypes & Variations, rather than in the table. A trope works because it carries an emotional contract of its own, and the only honest subversion is one that understands why the trope lands and then delivers that same emotional truth by a fresh route. The same role, the mentor or the betrayer or the trickster, re-skins from genre to genre while keeping its function, and that portability is what makes archetypes the cross-media lever rather than a genre-bound one.

The contract names its own failure

The reason to state a genre as a promise is that the promise tells you, immediately, how the work will fail. Each contract carries one signature breach, and naming the contract names the breach.

Break mystery’s contract and the reader does not just dislike the ending, they feel robbed, because the writer withheld a clue the detective used or pulled the murderer from a late chapter the evidence never pointed at. Break horror’s and the dread curdles into boredom or, worse, into the cheap jump that the genre’s own practitioners treat as a tell of weak work. Break fantasy’s and the magic solves a problem the reader did not understand it could solve, which reads as the writer cheating, the wand that does whatever the plot needs. Break science fiction’s and the invented jargon stops being flavour and becomes a wildcard, the reversed polarity that resolves any crisis on demand. Break historical fiction’s and a wristwatch glints on a Roman arm, and the spell that the period spent pages building dies in a word. Break the children’s and YA contract and a choice arrives with a visibly correct answer, which is not a choice but a quiz, and the young reader feels lectured exactly where they were promised agency.

So the contract is a diagnostic before it is a craft brief. Settle which genre you are writing, read its promise off the map, and you already know the single thing most likely to sink the work. The deep craft of avoiding it lives in the sibling articles. The map’s job is to point.

The interactive strain: the load-bearing clause is the one that breaks

Here is where the map proves most useful, and where it parts company from a simple shelf of genre definitions. Every contract has the clause that carries the most weight, and in interactive work that same clause is the one the medium attacks. The promise that mattered most on the page is the promise that breaks first when the reader takes the wheel.

Mystery shows it cleanest. The contract depends on every necessary clue being available, and on the page the author guarantees this by marching the reader past each clue in order. In interactive fiction the reader chooses the route. A load-bearing clue placed on one branch can be missed entirely, and a missed clue is a broken fair-play promise without anyone intending it. The fix is the same redundancy that the puzzle craft already relies on: the rule that several independent trails should lead to any conclusion the reader must reach, set out in Cluing & Fairness. Make the deciding evidence reachable by more than one path. Keep a notebook or recap so the reader can see what they hold, and let being wrong be a real and survivable failure state rather than a dead end.

Horror’s load-bearing clause is felt vulnerability, and agency is its natural enemy. A frightened reader who is handed too much control stops being afraid, because control is the opposite of dread. So the interactive horror writer tunes agency to a deliberate sweet spot. It must be real enough to matter and never enough to guarantee safety. The threat lives in the environment so that the room itself stays dangerous whatever the reader does. That is also why horror is the genre that travels most readily into built space. Escape-room atmosphere runs on the same engine of isolation, wrongness and decay, the craft of which is Theme, Immersion & Sensory Environment.

Fantasy and science fiction share a clause and so share a strain. Both ask the reader to accept a rule set (the magic, the novum) and then to trust that the rules hold. Interactive work multiplies the surfaces on which the rules can be tested. The reader will poke at the system from angles the author never scripted. So the rules have to be established firmly and early enough to survive that poking. Historical fiction’s clause is the preserved larger truth, and the strain is the obvious one. The reader wants to act, and some actions would change the famous outcome. The way through splits the timeline. The macro history stays fixed while the reader holds a personal micro-history that bends freely. Choice becomes real without the wrong side winning the battle. Children’s and YA work hangs on real agency. The medium’s gift is that agency becomes literal here. That is precisely why the contract’s anti-didactic clause turns load-bearing. The moment a branch flags its correct answer, the agency the genre promised collapses into a test.

Worldbuilding sits underneath several of these rows at once. The fantasy and science-fiction contracts both rest on a world that holds together under inspection, and the discipline of building one that stays consistent across the branches a reader explores is Worldbuilding Patterns. And whichever genre you are writing, the contract is kept or broken at the level of the sentence, in the Character Voice that has to sound like a period, a register or an age band without tipping into caricature.

The Specimen

The clearest proof that the contract, not the furniture, is the genre comes from the fair-play movement that detective fiction wrote down for itself. In the 1920s the Golden Age writers turned the mystery’s promise into near-legal code. S. S. Van Dine’s “Twenty Rules” opens by declaring the detective story a game of fair play in which the reader must have equal opportunity with the detective. Ronald Knox’s “Decalogue” forbids the unaccountable intuition that hands the detective an answer he never earned. Raymond Chandler, writing against that politeness in “The Simple Art of Murder,” kept the contract while changing the furniture entirely. His streets are mean and his detective is compromised, yet “down these mean streets a man must go who is not himself mean,” and the reader’s fair chance survives the shift from country house to gutter. The furniture moved from drawing room to back alley. The promise that an attentive reader can solve this did not move at all. That is the contract surviving the genre’s own reinvention, and no stronger evidence exists that the contract is the genre.

Where the map runs out

A map is honest about its edges. Genre contracts are not equally portable across media, and the matrix this map was distilled from marks most narrative genres as travelling only partly into live and tabletop play, and not meaningfully into the puzzle-hunt form at all. Mystery and horror are the conspicuous exceptions, carrying strongly into live play because their contracts are about an experience the body can have in a room rather than a structure the eye reads on a page. The murder-mystery party and the script-murder evening keep the fair-play tradition with evidence handed round the table. The horror escape room keeps the dread through confinement and set-dressing. The others travel as setting rather than as the full contract. A tabletop fantasy game externalises the magic rules into mechanics and a historical game leans on period props, but in both the genre arrives as a flavour over a system rather than the whole promise intact. The map tells you which genres survive the crossing whole and which arrive in pieces. That itself is a design decision you would rather make on purpose than discover halfway through a build.

Where this fits

The bigger picture. This is a map article, so it sits above the seven genre craft articles rather than beside them. It is the index you consult before you commit. Reading a genre as a contract is the move that makes the whole family legible at once. Each promise is specific, and each one names its own failure. In interactive work the promise that carried the most weight on the page is the one the reader’s agency strains first. Everything in the genre articles assumes you have already chosen your contract here and understood which clause will bear the load. The deep craft acts on a genre whose promise you settled first, and the worldbuilding, the voice and the cluing all serve a contract that this map made explicit.

Next steps. With a contract chosen, route to its craft. For the fair-play promise and the surprising-yet-inevitable solution, Mystery & Detective Fiction, and for the redundancy that keeps it fair across branches, Cluing & Fairness. For earned dread and the felt-vulnerability layer, Horror Conventions, with the built-space version in Theme, Immersion & Sensory Environment. For magic that behaves and a premise followed without cheating, Fantasy Conventions and Science Fiction Conventions, both resting on Worldbuilding Patterns. For preserved truth and anachronism control, Historical Fiction; for real agency and full-quality craft, Children’s & YA Conventions. And to honour or subvert the patterns that cross all of these, Tropes, Archetypes & Variations. Whichever you choose, the contract is kept sentence by sentence in Character Voice.