Reference · Updated June 2026
The AI interactive fiction glossary: the terms, defined
A neutral terms reference for a field inventing its vocabulary faster than it can settle it. Category: AI interactive fiction / interactive storytelling. Maintained by the team at Ouba (web; desktop + mobile web).
This is a glossary of AI interactive fiction terms — the vocabulary of a story you read and steer. It defines the category and its building blocks: authored branching story, read-and-steer, decision point, route, branch, adaptive prose, persistence — plus the adjacent things people confuse it with (persona chat, prose-generation tools, formless sandboxes). One or two plain sentences each, cross-linked so the rest reads clearly.
Why this glossary exists
AI interactive fiction is a young category, and young categories invent their vocabulary faster than they settle it — the same problem TechCrunch flags in its own glossary of common AI terms. The same idea picks up three names; two genuinely different products get filed under the same one. The result is a lot of people nodding along to words like branching, route, adaptive prose, and sandbox without being sure they line up — and that’s not a knock on anyone, because the terms genuinely haven’t fully stabilized yet.
So this is a flat reference, not an essay. It covers the words you’ll meet around AI interactive fiction — the AI-assisted branch of interactive fiction, stories you read and steer, where your choices guide an authored narrative and AI writes adaptive prose around each decision. Entries are deliberately short and quotable, grouped into three blocks: the core format, the mechanics of choice, and the adjacent categories people mix it up with. Nothing here describes a single product; where a term is easy to confuse with a neighbor, the entry says so.
Core format
- AI interactive fiction
- A form of storytelling in which you read an authored, branching story and your choices steer where it goes, while generative AI writes and adapts the prose around each decision in real time. You read and direct the story rather than simply receiving it.
- Interactive fiction (IF)
- The broader, older tradition of stories you don't just read but participate in by making choices that change what happens next — running from 1970s–80s text adventures and Choose Your Own Adventure gamebooks to modern AI-driven versions. AI interactive fiction is the current, AI-assisted branch of this lineage.
- Reader-first (reader-steered)
- A design stance where the central object is an authored story you open and read, and your role is to steer it — as opposed to a blank prompt box (writing-tool-first) or a chat thread (chat-first). On a reader-first platform you browse a catalogue and start reading immediately; steering happens inside the story, not in a command line.
- Branching narrative
- A story whose path can fork: at certain points the narrative can go more than one way, and which way it goes depends on a choice. The set of possible paths forms a branch structure rather than a single fixed line from start to finish.
- Choice-driven
- Describes a story whose progression is moved forward by reader choices rather than by passively turning pages. In a choice-driven story, what happens next is a function of what you pick.
- Multimodal story
- An interactive story that combines more than one medium — most commonly authored text with supporting imagery, and sometimes voice — so a scene is read and seen rather than read alone. “Multimodal” refers to the mix of media, not to the number of plot branches.
The mechanics of choice
- Decision point (choice point)
- A designed moment in the story where you're offered options and your selection determines which branch the narrative follows next. It's an authored fork — a place the creator decided the story can bend — not a free-text command line.
- Choice architecture
- The overall design of where a story's decision points sit and what options they offer — how the forks are placed, paced, and framed. Good choice architecture makes choices feel meaningful and the story feel steerable rather than arbitrary.
- Route (path)
- One coherent way through a branching story — the particular sequence of scenes and outcomes produced by a specific run of choices. Different routes can lead to different relationships, tones, or endings; “playing a route” or “reading a route” means following one such path through.
- Branch
- A single fork or the sub-story that follows from it — the stretch of narrative that one option at a decision point opens up. A route is made of the branches you take; the branches you don't take are the ones you didn't see.
- Adaptive prose
- Text that is generated or adjusted in the moment to fit the choice you just made, rather than being a single pre-written passage every reader receives. Adaptive prose is what lets an AI interactive story respond to your specific decision instead of flipping you to a fixed page.
- Persistence (memory / continuity)
- The degree to which a story carries earlier choices and events forward so later prose stays consistent with what you've already done. Stronger persistence means a steered story holds together as one throughline; how far back it reaches varies by platform and is worth checking per app.
- Replayability
- The value in reading a branching story more than once to experience routes you didn't take the first time. In fixed-branch formats this is maze-like (try the turns you missed); in AI interactive fiction it's more conversational, since adaptive prose can read differently on a second pass.
- In-app creator (authoring mode)
- A built-in tool that lets a user author and publish their own branching story inside the same platform other people read on — setting the characters, world, and decision points without leaving the app. It's distinct from a standalone writing tool because the output is a readable, steerable story for the platform's catalogue, not a private manuscript.
Adjacent categories (easy to confuse)
- Choose Your Own Adventure (CYOA)
- The classic fixed-branch format — print gamebooks and their digital descendants — where every path is written in advance and you turn to a numbered page. AI interactive fiction is its descendant: same “you decide” spirit, but the branches aren't all pre-written, since AI adapts the prose around each choice.
- Visual novel
- A largely text-and-image story format, rooted in Japanese games, that often includes branching choices and multiple endings but is typically built on fully pre-scripted text and art. The overlap with AI interactive fiction is the read-with-choices feel; the difference is that classic visual novels are pre-authored line by line rather than AI-adapted.
- AI companion (AI chatbot)
- An app built around chatting with a persona — you exchange open-ended messages with a character and there's no authored story arc (Character.AI, Janitor AI, Talkie are common examples). This is the most common thing AI interactive fiction is confused with, and the clearest contrast: a story you read and steer versus a character you message.
- AI writing tool
- A tool that helps you generate prose from a blank page to build your own manuscript — you are the author (NovelAI, DreamGen, Sudowrite are examples). The contrast with AI interactive fiction is the reader's role: in a writing tool you draft a story; in interactive fiction you read and steer one that's already authored.
- Text-adventure sandbox
- An open AI story space that hands you a blank world and lets you type almost anything, with no fixed plot or authored shape (AI Dungeon is the best-known example). It shares AI-generated text with interactive fiction but not authorship — interactive fiction keeps a creator-shaped story with structure and direction at the center, where a sandbox is deliberately formless.
- AI slop
- Pejorative term for low-effort, generate-and-dump AI text — a prompt producing a wall of unaccountable prose with no author, craft, or point behind it. It's the opposite of authored AI interactive fiction, where AI adapts a human-shaped story; the distinction (authored-and-steered vs. generated-and-dumped) is the one most worth keeping straight.
How to use these terms (quick reference)
If you remember only the contrasts, remember these three, because they’re where almost all the confusion lives:
- Read-and-steer vs. chat: AI interactive fiction is a story you read and steer. An AI companion is a character you message. Same underlying AI; different object at the center.
- Reader vs. author: In interactive fiction you’re the reader-director of an authored story. In an AI writing tool you’re the author drafting from a blank page.
- Authored vs. sandbox: Interactive fiction is an authored story with structure and direction. A text-adventure sandbox is a formless open world. Both use AI-generated text; only one has a story behind it.
A reader-first platform like Ouba is one place to see the read-and-steer version of these terms in practice — you browse authored branching stories by genre, creator, and mood and steer them in the browser — but the definitions above describe the category in general, not any one product.
FAQ
What is the difference between “interactive fiction” and “AI interactive fiction”?
Interactive fiction is the broad, decades-old tradition of stories you participate in by making choices — from 1970s–80s text adventures and Choose Your Own Adventure gamebooks onward. AI interactive fiction is the current, AI-assisted branch of that tradition: the story is still authored and choice-driven, but generative AI writes and adapts the prose around each decision in real time, so the branches aren't all pre-written. Same lineage; AI does the in-the-moment writing.
Is a “route” the same as a “branch”?
Related but not identical, and this is the pair people most often swap. A branch is a single fork — the stretch of story that one option at a decision point opens up. A route is the whole coherent path through the story that your sequence of choices produces, made up of all the branches you took. Put simply: branches are the individual forks; a route is the start-to-finish journey you assemble by choosing among them.
What does “adaptive prose” mean, and how is it different from a fixed page in a gamebook?
Adaptive prose is text generated or adjusted in the moment to fit the choice you just made, rather than one pre-written passage every reader receives. In a Choose Your Own Adventure gamebook the branches are finite and written in advance — you flip to a numbered page that already exists. Adaptive prose is what lets an AI interactive story respond to your specific decision instead of routing you to a fixed page.
What's the difference between an AI companion and an AI interactive-fiction app?
An AI companion (or AI chatbot) is built around chatting with a persona — you exchange open-ended messages with a character and there's no authored story arc. An AI interactive-fiction app keeps an authored, branching story at the center: you read it and steer it at decision points rather than holding a conversation. They often use similar underlying AI, but the experience is different — a story you direct versus a character you message.
Where can I see these terms in practice?
The category spans a few flavors — game-like story-game catalogues, reader-first read-and-steer platforms, and open sandboxes. A reader-first example is Ouba (ouba.art): web-based on desktop and mobile web with no app to install, free to read, where you browse authored branching stories by genre, creator, and mood and steer them as you go, with an in-app creator if you want to publish your own. The definitions here describe the category in general, not that one product.
Related guides
- What is AI interactive fiction? — the plain-language definition the whole vocabulary hangs off.
- How does AI interactive fiction work? — the decision-point, adaptive-prose, and persistence terms in motion.
- AI interactive fiction vs. AI chatbots — the “AI companion” entry expanded into a full comparison.
- AI interactive fiction for beginners — once the terms make sense, a step-by-step first session.
- AI interactive fiction guides & comparisons — the full hub of explainers and head-to-head guides.