Welcome to Craft

Craft is a new type of AI RPG platform that allows you to build and customize every aspect of an AI RPG. You can create your own worlds, game systems, and even your own game master.

With flexibility and customization at its core, you can tweak things like the way your game master handles memory, travel, or combat. Whether you want to build your own variant of Pathfinder or publish the next big RPG, Craft is flexible and can support anything you can imagine.

F&F vs. Craft — What's Different

Note: "Harness" refers to the architecture and code that pieces AI requests together into a chat experience.

	Friends & Fables	Craft
Game System Support	Built around D&D 5e. All rules, mechanics, and AI behavior are designed for that system.	Any system — D&D, PF2e, Fate, or something you invent. The AI interprets rules you define in plain English.
AI Control (The Harness)	F&F has a heavy and complex harness, with many custom built systems. There is a lot more rigidity and situation specific code.	The harness is light and flexible. You write the prompts that drive the AI. More work up front, but direct control over every behavior and faster to experiment.
Content Limits	Hard content length limits exist because of the way context is constructed.	High ceilings instead of hard walls. The AI selects what context to read on demand, so projects scale to thousands of files. The caps that do exist are listed on Platform Limits.
UI Design	Purpose-built and polished. Because we know exactly what a character sheet or monster stat block looks like, we can design specific, refined interfaces for them.	More general-purpose. Craft's UI will not reach the same level of specificity as F&F — the tradeoff for supporting anything you can imagine is that the interface can't be tailored to any one thing.
Modularity	In F&F, Worlds come as a big package. You can add to them and remove things, but it's not very modular.	In Craft, everything can be built into small modules that can be composed into larger projects. Building things in Craft feels more like playing with Legos.

Craft Vocabulary

The short version — the full, canonical list lives in A Glossary of Craft Terms.

Project — The container you build in: files, file types, and settings. Every project is created as a World (a playable setting) or a System (a reusable ruleset others build on).
File — The atomic building block of a project. A file can be a character sheet, a lore entry, a location, a spell — anything.
Game — A live play session started from a project. The project is the source; each game is its own playthrough.
Game Master — The AI that runs play, shaped by the instructions, personality, and tone you give it.
Package — A publishable slice of a project — e.g. a pack of items or spells — that other people can install into their own projects.

NextStarting Your First Project

Welcome to Craft

Craft is a new type of AI RPG platform that allows you to build and customize every aspect of an AI RPG. You can create your own worlds, game systems, and even your own game master.

F&F vs. Craft — What's Different

Note: "Harness" refers to the architecture and code that pieces AI requests together into a chat experience.

Friends & Fables

Craft

Game System Support

Built around D&D 5e. All rules, mechanics, and AI behavior are designed for that system.

Any system — D&D, PF2e, Fate, or something you invent. The AI interprets rules you define in plain English.

AI Control (The Harness)

F&F has a heavy and complex harness, with many custom built systems. There is a lot more rigidity and situation specific code.

The harness is light and flexible. You write the prompts that drive the AI. More work up front, but direct control over every behavior and faster to experiment.

Content Limits

Hard content length limits exist because of the way context is constructed.

High ceilings instead of hard walls. The AI selects what context to read on demand, so projects scale to thousands of files. The caps that do exist are listed on Platform Limits.

UI Design

Purpose-built and polished. Because we know exactly what a character sheet or monster stat block looks like, we can design specific, refined interfaces for them.

More general-purpose. Craft's UI will not reach the same level of specificity as F&F — the tradeoff for supporting anything you can imagine is that the interface can't be tailored to any one thing.

Modularity

In F&F, Worlds come as a big package. You can add to them and remove things, but it's not very modular.

In Craft, everything can be built into small modules that can be composed into larger projects. Building things in Craft feels more like playing with Legos.

Craft Vocabulary

The short version — the full, canonical list lives in A Glossary of Craft Terms.

Project — The container you build in: files, file types, and settings. Every project is created as a World (a playable setting) or a System (a reusable ruleset others build on).

File — The atomic building block of a project. A file can be a character sheet, a lore entry, a location, a spell — anything.

Game — A live play session started from a project. The project is the source; each game is its own playthrough.

Game Master — The AI that runs play, shaped by the instructions, personality, and tone you give it.

Package — A publishable slice of a project — e.g. a pack of items or spells — that other people can install into their own projects.