Private alpha in development

A world that does not wait for you.

Ghostlight Dungeon is an AI game master built around a persistent world—not a chat log. Places stay where they are. Characters know what they have learned. Powers pursue their own interests. What happens offscreen can find you later.

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Single-player campaigns · Fiction-first d20 resolution · Exportable state

PersistentPeople, places and consequences survive the context window.
GroundedWorldbuilding comes from evidence, not whatever the model vaguely remembers.
AgenticInstitutions and populations act for themselves—even while you are away.

Common failure modes

How LLM roleplay goes wrong.

Good prose can hide a broken game. These are six common failure modes, a concrete example of each, and how Ghostlight is being built to address them.

  1. Failure mode 01

    The world contradicts itself.

    Example

    The road that took a week becomes an afternoon. The inn moves across town. A spell quietly gains a new rule.

    How Ghostlight addresses it

    Locations, rules, and committed events live in durable state, with relevant source evidence retrieved for narration.

  2. Failure mode 02

    Characters know things they were never told.

    Example

    A guard recognises the alias you revealed privately to a thief three cities away.

    How Ghostlight addresses it

    Each character acts from a local view built from what they perceived, learned, and remember—not from every fact the model can see.

  3. Failure mode 03

    NPCs cease to exist offscreen.

    Example

    You leave a refugee convoy for a month. When you return, everyone is still waiting in the same camp for your next line.

    How Ghostlight addresses it

    People persist beyond the active scene, and background change can be resolved at the level the campaign needs so individuals can leave, adapt, and return.

  4. Failure mode 04

    Player declarations become facts.

    Example

    “I kick down the fortress gate” works because the player said it confidently—not because the character could do it.

    How Ghostlight addresses it

    An attempted action is separate from its result. Possibility, cost, risk, and resolution are checked before the world changes.

  5. Failure mode 05

    The world rearranges itself around the protagonist.

    Example

    A centuries-old order abandons its interests to admire, recruit, or obey the powerful newcomer.

    How Ghostlight addresses it

    Characters and institutions have their own pressures, authority, and relationships, so they can refuse, bargain, exploit, contain, or resist.

  6. Failure mode 06

    Consequences vanish from context.

    Example

    The broken treaty, wounded captain, and promised favour disappear once the relevant messages fall out of the chat history.

    How Ghostlight addresses it

    Events and relationship changes are committed to durable state so later scenes can retrieve what still matters.

The world is not a prompt

Leave the room.
It remains a room.

Most AI roleplaying games reconstruct reality from the conversation every turn. Ghostlight maintains typed world state, retrieves source evidence, and lets the narrator describe what actually survived validation.

01

Characters have boundaries

They perceive from where they stand, remember what happened to them, and cannot borrow another character’s secrets or expertise.

02

Your action is an attempt

Impossible claims are refused. Risky actions expose their odds and stakes before a server-side roll. Power has limits, so victory can matter.

03

The setting has agency

Factions recruit, obstruct, bargain, migrate and prepare according to their own pressures. The world does not collapse into applause when the protagonist arrives.

04

Background lives can return

Ghostlight simulates crowds and institutions as multiresolution Gestalts, then materialises individuals without erasing who they were. Help a refugee today; meet the same person years later.

THREE FICTIONAL MONTHS LATER · NORTH QUAY

“I wondered if you would recognise me.”

Mira sets a bundle of shipwright’s tools on the table. The refugee column dispersed weeks ago. She did not disappear with it.

IDENTITYpreserved RELATIONSHIPremembered JOURNEYworld-resolved

Provisional early-access plans

Choose what your world contributes.

Both lanes run the same game. Contributor campaigns reduce their price by permitting the model provider to use submitted campaign context and generated responses for model improvement. Private campaigns never route through that contributor lane.

Contributor

$5/month

Full persistent-world play at the standard simulation resolution.

  • 8 active Persona cells
  • Persistent campaigns and away-time
  • Campaign export
  • Training contribution permitted
Join the early-access list

Contributor Plus

$10/month

More simultaneous agency for denser scenes and wider conflicts.

  • 16 active Persona cells
  • Everything in Contributor
  • Less Gestalt consolidation
  • Training contribution permitted
Join the early-access list
PRIVATE LANE

Private

$15/month

The standard simulation with a provider policy that forbids Contributor routing.

  • 8 active Persona cells
  • Everything in Contributor
  • No training-contributor provider
  • Auditable provider receipts
Join the early-access list
PRIVATE LANE

Private Plus

$30/month

Higher world resolution without contributing campaign material for training.

  • 16 active Persona cells
  • Everything in Private
  • Less Gestalt consolidation
  • Auditable provider receipts
Join the early-access list

Prices and limits are provisional while we measure the paid alpha. Contributor consent will be explicit and campaign-bound; a private campaign will never silently fall back to a contributor provider.

Built by GameCult

The dungeon master remembers.
The world has plans.

We are building the private alpha now. Tell us what kind of campaign would make you want to live in this machine for a while.

Request early access