DungeonMasterOS
A persistent AI Dungeon Master for solo and multiplayer tabletop campaigns.
DungeonMasterOS Version 1 is currently in Alpha testing and free for users to test. Major updates are scheduled for future releases, including substantial improvements and overhauls to selected systems. Try the current Alpha and share feedback as the project develops.
These are early testing versions, not finished releases. You may encounter bugs, incomplete features and changes as development progresses. The current Alpha experience does not represent the final product.
DungeonMasterOS is a tabletop RPG platform built around a persistent AI Dungeon Master. It runs campaigns for solo players and full groups, tracking characters, world state, and story continuity across sessions, so a campaign can run indefinitely without a human GM holding it all together.
Current Version 1 Alpha capabilities
01
Persistent Campaigns
Characters, worlds, and story state persist between sessions — nothing resets when you close the tab.
02
AI Dungeon Master
AI-driven narration and adjudication responds to player choices in real time, running the table when a human DM can't.
03
Custom Worlds & Characters
Build original settings and characters, or drop into ready-made ones.
04
Solo or Multiplayer
Play alone against the AI, or bring a full party into the same campaign.
05
Evolving Campaigns
Every session changes the state of the world — choices carry forward, not just flavor text.
Major updates are in development
DungeonMasterOS Version 1 is the active Alpha test environment. Major work is underway across the campaign experience, supporting architecture, AI behaviour, and interfaces, and some existing systems may change substantially as testing continues.
Current Alpha users are helping identify what should be improved, replaced, or rebuilt before later releases. Future capabilities will be described publicly when they are defined well enough to represent accurately.