You create a fantasy language for a web serial by deciding what the language has to do in the story, inventing a small set of words you use consistently, and letting one or two grammatical quirks carry the flavor, rather than building a full working grammar the way Tolkien did. For a chapter-by-chapter serial, a few dozen consistent words and a single structural oddity will convince readers a whole language exists, and almost no one should try to build more than that.
Do you need to invent a whole language for your world?
You almost never need to invent a whole language, and for a web serial you actively should not. The thing readers respond to is not a working grammar they could speak; it is the impression that one exists behind the words on the page, and that impression is cheap to produce once you stop trying to be J.R.R. Tolkien. Tolkien is the reason every new fantasy writer thinks a secondary world requires Quenya and Sindarin, two fully constructed Elvish tongues he built, with their own sound systems and grammars, before most of the stories that used them. But Tolkien was a professional philologist who invented languages for pleasure and then, by his own account, wrote Middle-earth partly to give those languages a world to live in. That is an inversion of how almost everyone else works, and it is a terrible model for someone trying to post a chapter every few days. The useful lesson from Tolkien is not "build a language," it is that a few words with a consistent internal logic make a world feel deep, and you can steal that effect without the decades of labor underneath it.
I want to draw a clean line here, because this is the question I see tie writers in knots. Deciding what your fantasy names sound like, the apostrophe question, the phonetics of a given culture, that is naming, and I wrote about it at length in the piece on naming fantasy characters and places. This article is about the layer underneath the names, the actual language, and my whole argument is that for a serial you want the smallest possible version of it. Everything below is about how to build that small version so it punches far above its weight.
Start by deciding what the language is for
A fantasy language should start from the job it does in the story, not from a vocabulary list, because a language with no narrative purpose is just homework you are assigning yourself. Before you invent a single word, ask what the tongue is supposed to accomplish on the page. Sometimes the job is social, marking who belongs and who is an outsider, the way a character who cannot pronounce the local greeting is instantly read as foreign. Sometimes it is historical, a dead or sacred language that survives only in rituals and inscriptions, which tells the reader the world has a past deeper than the plot. Sometimes it is functional, a language of magic where the words are the spells, so that mispronouncing one has consequences. And sometimes the job is thematic, where the structure of the language itself encodes how its speakers see the world.
That last one is where the most interesting work happens, and it is worth a concrete example because it shows grammar doing something prose alone cannot. In Ursula K. Le Guin's The Dispossessed, from 1974, the anarchist moon Anarres speaks Pravic, a language deliberately built with almost no possessive constructions, so that a child does not say "my hand" so much as "the hand," and the whole ideology of a society that has abolished property is carried in a grammatical absence. George Orwell did the darker version of the same move in Nineteen Eighty-Four, from 1949, where Newspeak is engineered to make rebellious thought literally unsayable by deleting the words for it. Neither writer built a usable language. They built one load-bearing idea about how the language works and let it radiate meaning through the story. My feeling is that if you can name the single job your language does, you are ninety percent of the way to a language that is worth the ink, and if you cannot, you should probably not be building one at all.
A handful of consistent words beats a dictionary
The most efficient fantasy language is a small lexicon of words you use often and use the same way every time, because consistency, not size, is what sells the illusion. Readers do not count your vocabulary; they notice whether the words behave like a real language, and a real language is above all internally consistent. Anthony Burgess proved how little you need in A Clockwork Orange, from 1962, where the narrator's Nadsat slang, a few hundred words mostly borrowed and bent out of Russian, is dense enough to make a whole subculture feel alien and complete, yet small enough that a reader absorbs it by context within a chapter. You are writing a serial, read in installments over months rather than in one sitting, so you need even less than Burgess did. A few dozen words will do it.
The trick is to invent the words your characters genuinely say a lot, not the ones that would fill out an impressive appendix. Greetings and farewells, honorifics and titles, a curse or two, the name a culture has for its own god or its own enemies, the one food or garment or weapon that is specific to this place, these recur naturally in dialogue and so they are the words that do the most work for the least effort. Invent those, define them once in a way the reader can infer, and then use them without flinching and without re-explaining. What you must not do is sprinkle a different invented word into every scene for decoration, because a word used once is noise, while a word used thirty times becomes part of the furniture of the world. I think the discipline of inventing fewer words and committing to them harder is the single biggest difference between a language that feels real and a glossary that feels assembled at random.
Let grammar carry the flavor that sound cannot
Grammar is where you get the most distinctive flavor for the least vocabulary, and it is the layer most writers skip entirely. Phonetics, the sound of the words, is the naming layer, and it matters, but two cultures can share a sound-world and still feel utterly different if their languages are shaped differently, and shape is grammar. The famous demonstration is Marc Okrand's Klingon, built for Star Trek in the mid-1980s, which he deliberately gave an object-verb-subject word order, a structure vanishingly rare among human languages, specifically so that even a single translated line would feel wrong-footed and warlike in the mouth. David J. Peterson, who built Dothraki and High Valyrian for Game of Thrones starting in 2011 and later the languages of the 2021 Dune film, works the same seam professionally, and his book The Art of Language Invention, from 2015, is the thing to read if you ever want to go deeper than a serial needs.
For your purposes the grammatical quirk can be tiny and still transform the register. Maybe the language has no word for "please," so every request sounds blunt to outsiders and the characters have to signal politeness some other way. Maybe it builds respect into its pronouns, the way Japanese honorifics do, so that the moment a character drops the formal address is a moment of real intimacy or real insult, and you never have to narrate the shift because the grammar announces it. Maybe it has one word that covers both "guest" and "hostage," and a whole culture's attitude toward strangers lives in that collision. The real-world idea behind this, much debated among linguists and usually called linguistic relativity or the Sapir-Whorf hypothesis, is that the language you speak shapes how you think, and whatever its merits as science it is pure gold as a storytelling tool, because a single grammatical oddity, consistently applied, tells the reader something about a people that pages of exposition could not. This is also exactly the territory the naming craft cannot reach, which is why I treat language and naming as two separate jobs.
Keep the language consistent across a long serial
A fantasy language lives or dies on consistency over hundreds of chapters, which is a harder problem for a serial than for a novel because you are writing it in public, in order, with no chance to revise chapter four once you reach chapter four hundred. The word you coined for "thank you" in an early arc has to still mean that, be spelled that way, and be used by the same cultures three hundred thousand words later, and human memory is not built for that. This is the single most common way an invented language falls apart, not through bad design but through drift, and it is the reason I always tell authors to keep a living lexicon rather than trusting themselves to remember. On IlorisNovel the natural home for that is the connected wiki, where you can keep an entry per invented term, its meaning, which people use it, and a note on its grammar, and then @mention it as you write so the definition is one keystroke away in the editor instead of buried in an old chapter you would have to go hunting for. I built that into the world-building tools precisely because continuity is the part of world-building that no amount of talent protects you from, and a language is continuity at its most unforgiving. If you want the broader version of this argument, the world-building for web fiction guide is the hub it sits under.
There is also a specific web fiction problem worth naming, which is how you handle characters who do not share a language at all. A serial cannot afford to spend twenty chapters on a protagonist laboriously learning to ask for bread, and readers will not thank you for it, so the genre has evolved honest conventions to dissolve the barrier. Traditional fantasy leans on a common tongue that conveniently most people speak; web fiction, and LitRPG and isekai especially, frequently hand the protagonist a System skill or a spell that grants comprehension outright, so the language barrier exists exactly as long as the story wants it to and then quietly does not. I have no problem with either device, and neither do readers, as long as you establish the rule early and apply it the same way every time, because the thing that breaks immersion is not the shortcut, it is the shortcut that works differently whenever the plot finds it convenient. Whatever invented language you keep after that is there for flavor, for the handful of words the translation magic leaves untouched, and that is the right amount. One last discipline: resist the urge to teach the reader your language directly, because a paragraph that stops to explain declensions is the same mistake as any other info-dump, and the fix is the same one I lay out in revealing world-building without info-dumping, which is to let the words earn their meaning in scene.
Common questions about creating a fantasy language
Do you need to create a whole language for a fantasy novel?
No, and almost no one should. A full working language with its own grammar and thousands of words is the exception, built by trained linguists like David J. Peterson or by Tolkien, who was a professional philologist. What a reader actually needs is the impression of a language, which you get from a small set of invented words used consistently and one or two grammatical quirks. The illusion does the work the dictionary never has to.
What is a conlang?
A conlang, short for constructed language, is a language invented deliberately rather than evolved naturally. Tolkien's Quenya and Sindarin, Marc Okrand's Klingon for Star Trek, and David J. Peterson's Dothraki and High Valyrian for Game of Thrones are the famous fictional examples. A conlang can be a fully worked grammar with a lexicon running into thousands of words, or just a handful of terms with a consistent sound and a rule or two, and for web fiction the small version is almost always the right one.
How many words do you need to invent for a fantasy language?
Fewer than you think, usually a few dozen at most for a web serial. Anthony Burgess built the entire immersive effect of Nadsat in A Clockwork Orange on a couple of hundred slang words, and a chapter-by-chapter story needs far less than a novel read in one sitting. Invent the words your characters actually say often, greetings, honorifics, a few culture-specific nouns and curses, use them consistently, and let everything else stay in plain prose.
How do fantasy authors handle language barriers between characters?
Most handle it with a convention that quietly removes the barrier, because a serial cannot spend twenty chapters on a character learning to ask for bread. Fantasy often uses a common tongue that most people happen to speak, while web fiction, especially LitRPG and isekai, frequently uses a System skill or spell that grants comprehension outright. These are honest shortcuts, not cheats, as long as you establish the rule early and apply it the same way every time.
How is creating a fantasy language different from naming characters?
Naming is about sound and proper nouns, how a people's names feel and what their places are called, and it is a craft you can master without inventing any language at all. Creating a language is about the system behind the words, the grammar, the vocabulary, and what the tongue reveals about how its speakers think. The two overlap, since names are words, but you can and usually should do excellent naming with no conlang underneath it.
by Jacob Tam · October 2, 2026
I run IlorisNovel, a platform for web fiction writers. If you want to see what building a world here feels like, you can try the editor with no account.