Solo tabletop RPG · 5e-compatible

An AI dungeon master that can't fudge the dice

A rules engine runs every roll, hit point and spell slot. The AI only tells the story. Play a written campaign solo, with three AI companions, whenever you like.

Watch a real session

60-second replay of a real play session of The Moonsilk Debt: character creation, story and a fight. The fight was played in Traditional Chinese and is shown translated.

How a session plays

You type what your hero does. The rules engine settles it, the game master tells it, and your party answers.

Dice cards show a critical hit for 20 damage, a spider going down, and 200 XP — **Every roll on the table**Marta crits for 20 and the spider drops. Each attack, hit and XP award is a dice card from the engine.

The game master welcomes the player and starts building a character in chat — **Make a hero by talking**Say "a grumpy dwarf who hits things" and the game master builds a rules-legal sheet with you.

The game master describes spiders hanging from the beams and asks what the player does — **A written story, not a drift**A campaign with a mystery, a deadline and a real ending. The game master improvises inside it.

Why it beats a chatbot DM

Most AI story apps let the model make everything up. We split the job.

Rolls the AI can't touch

Checks, attacks, spells, conditions and rests follow the 5e rules (SRD 5.2). The AI asks the engine; it can't invent a roll or skip a spell slot, so a fight can really be lost.

A party that plays with you

Three companions with their own personalities and secrets talk, argue and fight on their own turns. Their hooks are tied into the plot.

A world that keeps moving

Campaigns run on clocks. Rest at the hut overnight and you get your spells back, but the countdown moves at dawn and a friend climbs on without you.

Picks up where you left off

Your game saves after every turn. Stop mid-fight and pick it up tomorrow.

One full campaign, start to finish

From an internal playtest of The Moonsilk Debt.

4.6 hplayed to the ending

83turns

3chapters

3AI companions

Pre-launch. Early access opens to a small group of players first.

Questions

Is it free?

Early access is free, including the first chapter. Pricing isn't set yet; we'll tell you before anything costs money.

Where do I play?

In your browser, on a phone or a computer. Nothing to install.

Solo only, or can friends join?

Solo for now. You play one hero; the AI plays the game master and three companions. Group play isn't available yet.

Can I make my own character?

Yes. You build a level-1 hero with the game master from the classes and species in the 5e rules (SRD 5.2), or say "pick for me". Homebrew isn't supported yet.

Which rules: 2014 or 2024?

The 2024 rules, through the System Reference Document 5.2.

How many campaigns are there?

One today, The Moonsilk Debt, three chapters, about four to five hours in our playtest. More are being written.

Which languages?

English and Traditional Chinese (繁體中文). You can switch between them.

No group? No game master? Still play.

Early access opens to a small group of players first.