Fantasy · Science Fiction

Your magic rules change between chapters. Your reader will notice.

Writing fantasy means building a world from scratch. Every magic rule, every prophecy, every character ability needs to be consistent from the first chapter to the last. Vellam tracks the rules of your world and flags every moment the text breaks them.

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Gustave Doré, Don Quixote, 1863
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What you get

Reads like someone who truly cares

01 · Essential for fantasy

Your magic system never contradicts itself

Mira acquires Fire Shield in chapter 15. Vellam remembers and flags every use of that ability earlier in the text. Every power, every artifact, every rule: tracked from first appearance to last use. No more unintentional shortcuts in your magic system.

02 · Essential for fantasy

No character knows more than they should

Elandor describes the interior of the Crystal Tower in chapter 12, but he has never been there. Magic rules shift between chapters without explanation. Characters know the geography of places they have never visited. Vellam catches both types of inconsistency before your beta readers do.

03

No sub-plot vanishes along the way

Vellam maps every sub-plot from the moment it is introduced to the moment it resolves. You see which threads remain open, which have been closed, and which disappeared from the narrative without explanation. In fantasy, where threads multiply quickly, this surfaces fast.

04

Notes in the language of fantasy, not generic advice

Vellam analyses your text against fantasy conventions: tension build-up, pacing of world revelation, character dynamics. Instead of generic notes you get specific suggestions in the context of the genre you are writing.

Story Atlas

Who has what power, where they were, what they know

Vellam builds a card for every character, location, and active thread based on what you wrote. No configuration needed. You see abilities, knowledge, relationships, and each character's state in every chapter.

  • Automatic detection of characters and their abilities
  • Location and knowledge state per chapter
  • Active prophecy and foreshadowing threads
  • Consistency flags: when your world logic breaks down
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World Bible

From the first ability to the final chapter. Vellam remembers every rule.

  1. Ability Chain

    Vellam maps the acquisition of every ability, artifact, and power from the moment it appears in the text. You see which abilities are used before they are gained, which remain unexplained, and which magic rules quietly shift between chapters.

  2. Character Knowledge and Secrets

    Who knows what and how. Vellam tracks each character's knowledge state chapter by chapter and flags moments when someone acts on information they could not yet have. The most common reader complaint in fantasy: "how did he know that?".

  3. Prophecies and Foreshadowing

    Every prophecy, omen, and foreshadowing element in your text must be either fulfilled or deliberately subverted. Vellam tracks all foreshadowing threads and shows which ones disappear without resolution before the story ends.

Chapter 12 of 30
Characters Elandor Sunwhisper wizard · 200 years old · Silver Order
Abilities in this chapter Ethereal Shield, Summoning, Sphere Travel
Unresolved threads scar on hand (unexplained)brother's betrayal (ch. 3 mention)
Characters Mira Ashford apprentice · 19 years old · no affiliation
Status in this chapter Fire Shield used in ch. 12, acquired in ch. 15
Inconsistencies Ability used before acquisition
Locations Crystal Tower location · Silver Order · ch. 12
Location rules Magic amplified ×3, healing spells inactive
Inconsistency Elandor knows the interior, but has never been here
Threads active Blood Prophecy
Text (Prologue) "When fire fades, blood will call"
References in text Ch. 2, 7, 12 · no fulfillment indicated
On the horizon

Vellam grows with your world.

We are building the features fantasy writers need most.

Magic System Tracker

Coming soon

Every ability, artifact, and magic rule tracked chapter by chapter. Vellam shows when a character uses a power they have not yet acquired and when magic rules quietly shift between chapters.

Geography and Travel Time

Coming soon

Can your hero be in Silverfall in chapter 12 if they left Ironheim in chapter 11? Vellam detects logistically impossible journeys and geographic inconsistencies in your world.

Genealogy and House Relations

Coming soon

Houses, clans, factions: who is who and how they are connected. Vellam builds the family tree and relationship map from what you wrote, with no configuration needed.

Prophecy and Foreshadowing Tracker

Coming soon

Every prophecy, omen, and foreshadowing element in your text must have a resolution. Vellam tracks all foreshadowing threads and shows which disappear without an answer before the story ends.

Tension Rhythm Analysis

Coming soon

Fantasy needs rhythm: tension, release, tension. Vellam measures the tension curve across the entire narrative and points to chapters where the pace drops for too long or rises too sharply.

World Bible Export

Coming soon

Vellam pulls the magic rules, geography, culture, and history of your world straight from the text and packages them into one document. Ready to share with beta readers and co-authors.

Missing a feature you need? Submit an idea

Credits and payment

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From writers

What users say

Gustave Doré, Don Quixote, 1863

A fascinating tool, recommended to me by a colleague in the industry. It delivers deeply considered feedback with a handy breakdown by chapters and areas of work. I recommend it to the authors I collaborate with as their first beta reader, and to editors as a supporting tool that generates ideas.

Paweł Editor, recommends Vellam to authors In an editor's work A first read for the authors he works with.

Reviews come from Vellam users who agreed to their publication. Some have been translated from the original language.

Pricing

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  • Write the whole book in the editor, no word limit
  • Export to .docx whenever you want
  • Story Bible: describe your world once
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What credits pay for

One credit balance works across almost the whole app. You never buy analysis and chat separately: every feature takes what it uses from the same balance.

  • Chapter and full-book analysis
  • Consistency analysis
  • Craft analysis
  • Reader reaction
  • Chat with a character
  • Chat with the assistant
  • Fact check
  • Translations

A full analysis uses the most, about 2.5 credits per word. A chat with the assistant or a fact check usually costs a few hundred credits. Writing, the Story Bible and export are always free.

In every pack

  • Know what is off in your plot, characters and locations
  • An analysis that knows your world and your rules
  • Upload a finished .docx, .txt or .pdf
  • Every chapter read in the context of the whole book
  • Your text never trains any models
From the blog

Craft guides for this genre

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