LibraryHow to play any TTRPG system with an AI game master
Updated 2026-07-08
Hand the game master your rulebook and it runs the system. In FreedomRPG you attach the PDF to a chat message, the same way you'd attach a file anywhere else; the game master reads it, learns the rules, and runs your game with them. That covers published system references, homebrew documents, campaign notes, world bibles, and scanned books. Uploading costs nothing, and the game master reads pages as play calls for them, so a big rulebook costs you the pages it consults rather than the whole book.
Most of the systems people love have no table. The book is out of print, the group dissolved years ago, or the system is niche enough that nobody you know has heard of it. You can reread a rulebook forever, but rereading isn't playing. This is the gap the upload exists for: if you have the book, you have a game.
A worked example: teaching the GM the D&D 5e SRD
The walkthrough below uses the D&D 5e SRD, the freely licensed System Reference Document, as its example rulebook. Everything in it applies the same way to your own documents.
This work includes material from the System Reference Document 5.2 ("SRD 5.2") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2 is licensed under the Creative Commons Attribution 4.0 International License.
1. Start from New World and attach the book
For a whole new system, start a New World game. It's the blank canvas: the GM builds the world from your prompt, so it shapes everything around your book instead of fitting the book into an existing world.
New World is the blank canvas. Point it at your book and the world takes shape around the system.
Then there's no import screen and no setup step. You attach the PDF to a message, in a brand-new game or one you're already playing, and tell the GM you want to play by its rules. Small documents go straight into the GM's working context; a full rulebook becomes a library the GM can pull from, with an inventory of what's available.
Handing the GM the book at the start of a New World game. No import step; you attach it like any other file.
2. The GM builds the world around the book
Tell it what you want to play and it does the rest. One prompt plus the book, and the GM sets up the system's rules, the world, and everything it needs to track before the story opens. From then on it reads the way a person does, opening the book to the part that matters now rather than rereading the whole thing every turn.
One message and the book. The GM builds the system, the setting, and its tracked entities, then opens the story.
3. The system takes hold
FreedomRPG's game master doesn't run on a fixed character sheet. What it tracks is built per world, so once it has read your book, the character sheet takes the shape of the system's own stats and the GM keeps them as real, tracked things while you play. Whatever your system cares about is what gets tracked.
The character sheet the GM built from the book. The stats are the system's, not a template's.
4. Then you play it
The system isn't set dressing. The choices the GM offers you are the book's own moves, and when steel comes out it rolls real dice against the book's numbers: attack rolls against armor, saves against difficulty checks, initiative, hit points, all tracked in the open.
The GM playing the system straight: the choices it offers are the book's own abilities, with their real costs and save numbers.
Rolls resolve against the book's numbers, and the fight is tracked in the open: initiative, hit points, the lot.
What works and what doesn't
Feed it anything you actually have: homebrew, campaign notes, world bibles, scanned books. PDFs up to 30MB with no page cap, images up to 5MB. Scans are worth calling out, because some tools extract the text layer from your PDF and search it, which fails on scanned pages, maps, and statblock tables. FreedomRPG's game master reads the actual pages, so a scan or a photo of a book works fine. Upload material you own or have the right to use; your uploads stay private to your games.
Two honest caveats. Turns where the GM opens the book cost a little more than turns where it doesn't. And the GM runs your system the way a human GM who just read the book would: it applies the rules and rolls the dice, and when a corner case comes up it makes a ruling and moves on. If you want strict rules-as-written enforcement of every subsystem, or tactical battlemap combat, this isn't that.
Questions people ask
Does it work with scanned books?
Yes. The game master reads pages as pages, so a scanned book or a photographed one works the same as a clean digital PDF. Maps, tables, and statblock layouts come through too, because nothing is being flattened to plain text first.
What do uploads cost?
Uploading costs nothing. Large documents don't sit in every turn either: the game master pulls in just the pages it needs, when it needs them, so a 200-page rulebook costs you the pages it consults, not the whole book. Expect turns with rules lookups to cost a little more than turns without.
Can I upload books I own?
Upload material you own or have the right to use. Your uploads stay private to your own games, and if you share a world publicly, keep other people's copyrighted work out of it.
Try it with your book
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