How to Create Your First Custom World on EchoQuest
The official campaigns are a fine way to learn EchoQuest, and I mean that. I built the flagship ones to show off what the platform can do. Iron Citadel and Neon Precinct make good training grounds for a new player, and Saltbound teaches you how to keep a restless pirate crew on side. Still, sooner or later most people get an itch. Maybe there's a setting you've always wanted to play in, or a story you've been meaning to tell for years. Maybe it's a flavour of fiction nobody seems to be writing right now. Once a world like that is rattling around in your head, it's time to build it yourself. Custom worlds are where EchoQuest stops being "an interesting AI game" and turns into "the place I tell my own stories."
There are two main routes to a custom world: uploading a Game Bible and the World Builder Wizard. Either one gives you a fully playable campaign, run by the same AI Game Master, and you can rework and rebuild it later. Which one suits you depends on where you're starting from. If you've already got a document, upload it. If you're staring at a blank page, the Wizard was made for exactly that. (The same screen also offers a four-question Quick Build and an importer for old session notes, but I'll stick to the big two here.) Below I'll walk through both paths, tell you how I'd pick between them, and flag the mistakes first-time world-builders tend to make so you can sidestep them.
One bit of housekeeping before we start. Both paths unlock on the Storyteller plan ($15 a month or $129 a year), and that plan holds one private world. Creator ($29 a month or $239 a year) is the one you'll want later if you'd like to publish your world to the library for other people to play.
Path 1: Upload a Game Bible (Storyteller Plan)
If you already have a document describing your world, even scrappy notes, the Game Bible upload is the quickest way in. It's the option for anyone whose world has been gathering dust in an old notebook or a half-finished novel draft for years. You don't have to retype a single line of it.
Step 1: Write your world document. EchoQuest takes PDF, DOCX, TXT, Markdown and JSON, so a Word file works, and so does a Google Doc exported as .docx. Cover the basics: setting, tone, factions, major NPCs and an opening scenario. My Game Bible template post goes through all of it in detail. The format is forgiving. Section headings help the AI pick out the structure, although plain prose works too.
Step 2: Open My Worlds and choose Upload a World. (You can also go through Create New World and pick Upload a Game Bible; both land on the same page.)
Step 3: Select your file. The limit is 10 MB, which is a lot of words. EchoQuest's AI then reads your document and pulls out the world's structure: places, characters, lore and rules. A progress panel tells you what's happening as it goes, from receiving the file to extracting the text, then the AI reading your world (the screen says that part takes about fifteen seconds) and finally building it. Big documents can take a little longer, so go put the kettle on.
Step 4: Review what came out. You'll get a summary of what the AI extracted before you play, and this step matters more than it looks. The AI sometimes mistakes one colourful sentence for an entire faction, or misses a constraint you implied instead of stating outright. Two minutes spent checking here can save you real frustration later. If something's off, fix it at the source: tighten that paragraph in your document and upload it again. (Storyteller holds one private world at a time, so delete the old version from My Worlds first.) There's also a Re-analyse button on My Worlds that gives the AI a fresh read of the same text, which can help when the first pass missed something.
Step 5: Play. Your world is ready straight away, and the page hands you a button to start your adventure.
I'd pick uploading if you have an existing setting lying around, maybe from a long-running tabletop campaign or a novel you never finished. It's also the better fit if you'd rather draft in a word processor you already know than in a web form, or if you want full control over the exact source text the AI reads.
Path 2: World Builder Wizard (Storyteller Plan and Up)
Like uploads, the Wizard comes with the Storyteller plan. Creator is the plan that adds publishing.
The World Builder Wizard walks you through building a world from scratch, one question at a time, with no document needed. It asks ten questions in all, and on the open-ended ones Claude offers suggestions you're free to borrow from or ignore. Honestly, it feels closer to a conversation than a form. You sketch an idea and Claude offers a few ways to flesh it out. Then you keep the bits you like.
It's also built to be heard. Each question is read aloud as you reach it, R repeats the question, V lets you speak your answer, and the arrow keys move you back and forth. In May I brought the phone version of the wizard up to the same standard as the web one, with a button to re-read the question and a pulsing ring on the mic button while it listens (it holds still if you've switched on reduced motion). I wanted a blind player to be able to build a world by ear and by voice, without ever reaching for a mouse.
Step 1: Name your world and write a one-sentence pitch. ("A crumbling empire where three noble houses compete to fill a power vacuum.") The pitch is the seed for everything that follows, so be specific. "A fantasy world" gives the AI nothing to grip. "A late-medieval merchant republic where a sea-god has just stopped answering prayers" sets a mood the wizard can actually build on.
Step 2: Choose your genre, style and content rating. Genre is broad, and you type it in your own words: dark fantasy, sci-fi noir, cozy mystery, whatever fits. Next you pick how the GM should run scenes, from cinematic and vivid to rules-light, crunchy, mystery, horror, political intrigue or fast-moving adventure. The content rating sets the limits the AI will respect, from Family up through Teen to Mature. Then you describe the narrator's tone in three words of your own ("hushed and watchful", say, or "brash and witty"). Treat these settings as guard rails rather than a cage. Inside them, you can play whatever you want.
Step 3: Decide where and when it happens, and who's fighting over it. The wizard asks for your setting (a region and an era, or just one memorable spot), and this is where your factions earn their keep. There's no separate faction screen, so I'd sketch three to five of them on paper first, each with a goal and a line it won't cross, then weave the important ones into your pitch and setting answers. Fewer than three and the politics feel thin. More than five and nobody can keep track. If you want a full faction roster with names and secrets, that's a strong argument for the Game Bible path instead.
Step 4: Build your opening scene. Where does the story begin, and what's at stake right now? The wizard asks for it in a sentence or two and offers some drafts based on your pitch. Don't be shy about rejecting them. If none of the suggestions feel right, write your own, or step back a question and return for a fresh batch.
Step 5: Set your hard rule. What can't happen in this world? Constraints sharpen everything else. "No resurrection magic", "no firearms", "no telepathy", "the gods are silent": each one nudges the stories in a particular direction. The wizard asks for one rule the GM must never break, so choose the one that shapes your world most. There's actual research behind this instinct, by the way. In two experiments by psychologist Catrinel Haught-Tromp, people wrote more creative rhymes when they were handed a word they had to include, and she named the effect after Green Eggs and Ham, the Dr. Seuss bestseller written with just 50 different words.
Step 6: Generate and play. The last question asks your character's name, and you can add a cover image link if you have one. Hit finish, and the Wizard compiles your answers into a playable world and takes you straight to character creation, then into your first scene.
The wizard makes more sense if you're starting from a hazy idea instead of an existing document, or if you'd like Claude to pitch in while you shape the world. It's also kind to newcomers, because the questions make sure you've covered the essentials.
Tips for First-Time World Builders
Start smaller than you think. A single city with three factions and one crisis is enough for ten sessions, and you can always expand later. New world-builders almost always overshoot. They draft continents and pantheons before any character has set foot in a tavern. A small, dense world plays better than a large, vague one, so keep your first world to a single region. Experienced GMs swear by this too. Sly Flourish's spiral approach to campaign building skips the gods and cosmology entirely and starts with one small town, because, as he puts it, the larger world is interesting "only in small pieces revealed to the characters as they explore the world around them."
Don't over-explain magic. The AI GM will work out rules for you as it goes. Write about how magic feels in your world, and leave the system mechanics alone. "Magic is rare and feared, takes hours to cast and always leaves the caster physically drained" does far more work than three pages of mana-cost tables. Mechanics belong in a tabletop rulebook; feelings belong in a Game Bible. Brandon Sanderson's First Law of magic explains why this works: a writer's ability to solve conflict with magic is directly proportional to how well the reader understands it. Mysterious magic is wonderful, as long as it creates problems instead of solving them. And frankly, that's exactly the kind of magic an AI narrator handles best.
Name your starting NPC. Give the first character the player meets a specific name, a personality, a mannerism and one secret. This person anchors the whole early game. What's more, a fully realised first NPC hands the AI a model to follow when it invents everyone who comes after.
Write the opening scene yourself. The most valuable 200 words you'll write are the first scene. The AI takes its cue for everything afterwards from what it sees in scene one. If you want a tense political thriller, open on a tense political moment, not "you wake up at an inn." Whatever your opening looks like, the campaign will lean into it. Tabletop GMs call this a strong start, and the rule of thumb is simply that "something happens": an ambush, a long-lost friend at the door, a festival spilling into the streets or a sinkhole opening in the road. I'll admit this tip is close to my heart. I rewrote the GM's own instructions so it opens every scene on one concrete detail and ends on a direct question to you, because a scene that starts limp rarely recovers.
Iterate. Your first world will have weak spots you only notice after a few sessions in it. That's fine, and it's normal. Revise your Game Bible and upload it again, or run the Wizard a second time with sharper answers. World-builders who treat their first attempt as a draft and not a finished product end up with much better second worlds. So, what's the first world you're going to build?
