An autonomous dungeon master is software that does the Dungeon Master's job: it runs the world so that everyone at the table gets to play a character. You will also see it called an AI dungeon master or AI DM — same thing.
This page explains what it actually does at the table, what it is good at, and what it leaves to the humans.
Worth naming the job before asking whether software can hold it. A DM:
The first six are mechanical. The last one is partly mechanical and partly human, and knowing which part is which is most of what this page is about.
It takes the first six. In practice, a turn looks like this: it describes where you are and what is happening, you say what your character does, it decides whether that needs a roll, you roll, and it narrates the result and what changes. Then the world moves and it comes back to you.
In combat it runs initiative, plays the monsters with their real stat blocks, applies damage and conditions, and tracks everyone's hit points. It remembers what you did earlier in the session, so the guard you bribed in the first scene is still bribed in the fourth.
It will not ask how your week went. It will not laugh at your jokes. It will not fetch anybody a drink. The warmth of a table full of friends is yours to bring — it is entirely all business: it is here to run a 5e compatible session, and that is the whole of what it does.
What it does watch is the story. It rotates the spotlight through the party, so the campaign keeps turning toward each character's own history rather than settling on whoever talks loudest, and it will put a scene in front of a specific hero and ask them directly what they do. Nobody gets quietly left at the edge of the table.
What matters to us is a Dungeon Master that knows the rules — and knows when to bend and break them. One that keeps the story, the characters and the memories consistent, from the first scene to the last. One that players come back to because it is reliable: it is always there, it always remembers, and it always runs the game.
What matters is that MONOLITH is where adventure never ends.
So the questions worth asking of any Dungeon Master, human or otherwise, are these. Does it actually apply the rules, so that hit points, spell slots and armour class mean something? Does it remember what you did — within a session and across them? Can the people you want to play with join you? And does it hand you the dice, so the roll is yours?
MONOLITH is an Autonomous Dungeon Master for 5e compatible play — full character creation, real dice, real combat, one to six players on one screen or on their phones. A session is 24 rounds, about an evening. The first one is free and solo.
It will not ask about your day. It will run the game.