Pen and Paper

A tabletop game where your own Claude or ChatGPT is the Dungeon Master.

You are one person in a low-fantasy world that carries on whether or not you look. People have names, homes, trades and memories. Word travels by road, and debts come due. You say what you do, the dice decide, and what happens is written down.

  1. Get Claude Code or Codex

    Either one, signed in to your own plan. Claude Pro or ChatGPT Plus is enough: the Dungeon Master plays on your plan, and the world and its saves are on us.

  2. Download the window

    It draws the map, your sheet and the dice while the Dungeon Master tells the story.

    Coming soon For Windows, macOS and Linux ยท free
  3. Open it and press Play

    You start as a guest in today's world, with nothing to sign up for. A guest's run is kept for a day after its last turn; keep it for good from the window when you quit.

No computer to hand? Play in the Claude app

Add the game to Claude as a connector, on the web, the desktop app or your phone, and start a chat from its play prompt. It's the same world and the same save, without the window's map and tabs.

Get a guest link

A turn in the windowhover or tap to play it