The AI Campaign Companion for Game Masters

Your campaign, remembered.

You run the table. Realmweaver keeps the canon — recaps written for your players and published to a page they can bookmark, a world bible that catches your contradictions, and prep coaching from an AI that knows every NPC you've ever named.

Free forever · no credit card · your campaign stays 100% yours.

The Ember Vault — Session 12 · published to your players
Chronicle
The Salt Queen's Bargain

The party descended into the flooded vault beneath Marrow Keep, where Marshal Kade's betrayal finally surfaced — the writ he's been carrying bears the Salt Queen's seal. Vessa struck the bargain anyway: safe passage for the refugees, in exchange for the name she swore never to speak.

Where things stand
Marshal Kade
Exposed — but the party still needs him
The Salt Queen
Holds a name she can spend at any time
The refugees
Safe passage promised, not yet delivered

"After a four-hour session, nobody wants to write the recap. So nobody does — and by next week, your players have forgotten half the campaign."

The prep, the notes, the NPC voices, the threads you're holding in your head between sessions — being a GM is a second job. Realmweaver takes the paperwork half of that job.

Where the time goes

Less paperwork. More game night.

Every hour you don't spend on write-ups and stat math is an hour of actual play. Here's where it comes back:

Under a minute

from raw session notes to a polished recap your players actually read

Seconds

to a rules-correct stat block — saves, DCs, and CR math checked against the system

Half an hour

to prep a session that used to eat an evening — stakes, live NPCs, contingencies

How it fits your table

Before, after, and between sessions

Before the session

Prep with a veteran GM

Run a Game Master prep session: Quill pulls from your world — factions, NPC motivations, your main characters’ unresolved threads — and helps you plan stakes and situations, not scripts. Prep in thirty minutes what used to take an evening.

After the session

Notes in, recap out

Paste your raw, messy session notes. Chronicle turns them into a polished recap written in your world’s voice, a structured event log, and a fresh “where things stand” snapshot — and proposes updates to your world bible, which you approve one click at a time.

Between sessions

A page your players bookmark

Publish each recap to a public campaign page your players can actually read — the story so far, the confirmed events, the open threads. Never your raw notes, never your secrets. You choose what’s shared, session by session.

The Game Book workspace

Turn your campaign into a book you could publish

Sourcebook, adventure, one-shot, or bestiary — Quill co-designs it with you, grounded in everything you've built.

A Blueprint that knows the way

Quill lays out every section a book like yours needs, in order, from your world. One click creates them all — a non-designer always knows the next step.

Stat blocks with your lore inside

Stat any NPC or monster in D&D 5e, system-agnostic, or your own homebrew system. The abilities come from who they actually are — their faction, their history, their tricks. Every number editable.

Write it rough, hit Polish

Not much of a writer? Put it down in your own words and Quill makes it table-ready without changing your ideas.

Export to Homebrewery

Download a formatted PDF, Markdown, or Homebrewery-ready markdown you can paste straight into homebrewery.naturalcrit.com and share with the community.

The Ember Vault — Bestiary · D&D 5e
Marshal Kade
Medium humanoid (human), lawful evil
Armor Class 16 (breastplate)
Hit Points 97 (13d8 + 39)
Challenge 5 (1,800 XP)
Portrait of Marshal Kade, a gaunt stern man in a dark cloak and silver chain
STR
16 (+3)
DEX
14 (+2)
CON
16 (+3)
INT
12 (+1)
WIS
13 (+1)
CHA
15 (+2)

The Salt Queen's Writ. While Kade carries the writ, he has advantage on saving throws against being Charmed — no oath binds a man already sold.

Saber. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) slashing damage, plus 7 (2d6) necrotic if Kade has spoken the Salt Queen's name this turn.

Statted by Quill from Kade's wiki entry — his betrayal, his writ, his queen.
The world bible underneath

A campaign wiki that keeps itself honest

Every NPC, faction, location, and artifact lives in a living wiki — built through guided sessions, imports of your existing notes, or by hand. Then it starts working for you:

Consistency checking

The wiki stores discrete facts alongside prose, so Realmweaver can flag the contradictions players love to catch — the innkeeper who changed names, the war that’s dated two ways, the NPC who died twice.

Everything cross-linked

Mentions link themselves to the right entry. Relationships are typed — ruled_by, betrayed, worships — so the web of your campaign is navigable, and visible on a relationship canvas.

Point the AI at your canon

Type @ in any session to hand Quill a specific entry’s full contents — “plan tonight’s heist, and keep it consistent with @Marrow Keep.”

Your map, pinned to your lore

Upload your hand-drawn or commissioned campaign map and pin locations to their wiki entries. Click a pin, get the lore.

You approve every change

Nothing writes itself into your canon silently. Session extractions and Chronicle updates are proposed first — you accept, edit, or skip, entry by entry.

Your campaign is yours

Full export any time, in standard formats. Your content is never used to train AI models, never shared, never sold. That applies to the free plan too.

Three campaigns deep? Bring it all with you.

Import your existing campaign documents and Realmweaver reads them into structured, cross-linked wiki entries — NPCs, places, factions, events — ready for Chronicle and consistency checking from day one. No re-typing your world into templates.

Keep your table hooked between sessions.

Free to start — run your next session, paste the notes, and send your players a recap they'll actually read.

Start Your Campaign — Free

No credit card · free forever plan · full export any time