Chapter I
A world
Pen the ruleset, the lore, the races, the skill tree. System-agnostic by design — D&D, Powered by the Apocalypse, Forged in the Dark, a homebrew tarot game; all welcome.
Volume I · A homebrew companion
Forge worlds.
Gather a party.
Play live.
A tabletop sanctum for storytellers and adventurers, with an AI gamemaster who remembers every twist, every grudge, and every dragon you have ever named.
First $5 of agent & forge usage are on the house — no card needed.
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Three chapters
From blank page to live session
A whole campaign moves through four nested vessels. Each one is a markdown document the agents read and write to — never a rigid form pretending your homebrew fits D&D's shape.
Chapter II
A campaign
A story inside the world. Set the hook, the setting, the gamemaster notes only you can see. Run as many in parallel as your free evenings allow.
Chapter III
A party
Invite friends by email. They sign in, accept the summons, roll up a character with help from their own assistant. No installs. No discord bot. No spreadsheets.
Chapter IV
A live session
Open the table. Players declare intents, the gamemaster narrates resolutions, the log persists. Refresh-safe, multi-device, replayable.
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Cabinet of scribes
Three agents at your elbow
Each is a Mastra-backed assistant with long-term memory — they remember the whole campaign, not just this turn. None of them roll dice for you, but all of them can read every line you've written.
The Worldbuilder Copilot
For prep — out of session.
Pulls up your worlds, drafts a missing tagline, sketches a new location, suggests a campaign hook. Works alongside every form on the platform: ask it to fill the world page and watch the fields fill in for your review.
The Player Companion
For each adventurer — in session and out.
Knows your character: backstory, inventory, the GM-public state of the world. Helps you plan a turn, draft an intent, extend your character's notes between sessions. Never sees other players' private notes.
The Gamemaster Companion
For the GM — narrates the room.
Resolves rounds. Weaves player intents into a single narration. Updates NPC dispositions, location kinds, recap entries. Knows the whole campaign and every prior session by heart.
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Chapter V
The Forge — images & song
Every world wants pictures and a soundtrack. The Forge does both, live, while you keep playing.
Portraits, scenes, maps, covers
Anyone at the table can commission an image. The Forge auto-attaches it to your world, campaign, or character, scopes the visibility correctly, and drops it into the session gallery for every player to see.
Ambience & themes
Composed in a Python sandbox, scored to the scene. Hits the table as an ambient loop the GM can fade in. 90–180 seconds to compose; the workflow survives reloads, network blips, and function timeouts.
Regenerate from the scene
A portrait of Eira no longer fits this chapter? Hover the asset, click regenerate — the new draft is based on the original and the last 30 messages of the session log.
Marginalia
How a forge run actually works
- i.You (or one of the agents) describe what to forge.
- ii.A durable workflow boots — survives reloads, retries on transient failures, never gives up halfway.
- iii.The model paints / composes. Your browser sees progress live via a status stream.
- iv.The asset lands in your session gallery for every connected player — no refresh needed. You’re billed only if the final asset actually shipped.
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Chapter VI
Cast it to the table
Open Cinema mode on the TV in the room and the session log scrolls live, the gallery breathes, the ambience plays. No second monitor for each player — one big screen, real chairs, real friends. The fastest path from “I scheduled a game” to “we’re actually playing it.”
Built for evenings where you want the laptops closed and the story on the wall.
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The ledger
Pricing in plain ink
Everyone starts with $5 of usage on the house — about a hundred agent turns, or twenty-five painted scenes. When it runs out, pay only for what you actually use. No seats, no per-campaign fees, no monthly minimum.
- An agent turncopilot, player or GM5¢
- A forged imageportrait, scene, map…20¢
- A music trackambience or theme20¢
Each player is billed individually — the gamemaster never picks up the bill for their table. Failed runs cost nothing.
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The candle is lit.
Pull up a chair.