AI-Powered Tabletop RPG Platform

Mnemosyne

Your Intelligent Game Master Companion

Dynamic rule systems from any PDF • Multiplayer sessions • Infinite universe generation • Powered by local or cloud AI

Any RPG System
Real-time Multiplayer
Infinite Universes
Local AI Privacy
Game Session
Core Features

Everything You Need for Epic Adventures

A complete platform designed for Game Masters and players who demand the best

Rules Reference

Dynamic Rule Systems

Import any RPG rulebook as PDF and our AI will understand it. From AD&D to Traveller, from D&D 5E to Call of Cthulhu - play any system with intelligent rule lookup and context-aware assistance.

  • PDF rulebook ingestion into vector database
  • Context-aware rule suggestions during play
  • Bookmark and search any rule instantly
  • Support for homebrew and custom systems
GM Personality

GM Personality Modes

Customize your AI Game Master's narrative style. Choose from dramatic storyteller, tactical advisor, whimsical entertainer, or horror master - or create your own unique GM persona.

  • Multiple pre-built GM personalities
  • Adjustable verbosity and detail levels
  • Tone adaptation based on scene type
  • Custom persona creation
Voice Input
Listening...

Voice Input

Speak naturally to your AI Game Master. Voice commands let you describe actions, ask questions, and roleplay conversations without breaking immersion by typing.

  • Natural speech recognition
  • Hands-free gameplay
  • Real-time transcription
  • Works with any microphone
World Building

Infinite Universe Generation

From cosmic planes to local taverns - generate entire worlds with intelligent interconnections

Cosmic & Planes

Generate entire cosmologies with interconnected planes of existence, divine realms, and dimensional barriers.

Planar Maps Divine Hierarchies Dimensional Travel

Continents & Regions

Create sprawling continents with diverse biomes, political boundaries, trade routes, and historical conflicts.

Hex Terrain Maps Political Borders Trade Networks

Settlements

Generate cities, towns, and villages with districts, notable locations, population demographics, and local governance.

City Districts Population Local Laws

Establishments

Taverns, shops, temples, and guilds - each with unique staff, inventory, services, and story hooks.

Staff NPCs Inventory Quest Hooks

Living World Systems

Weather System

Dynamic weather patterns that affect gameplay, travel, and NPC behavior. From gentle rain to magical storms.

Time System

Track in-game time with day/night cycles, scheduling, and timed events. NPCs follow daily routines.

Seasons

Seasonal changes affect world state, available quests, festivals, and environmental hazards.

Play Together

Real-Time Multiplayer

Bring your group together with seamless multiplayer sessions and party management

Multiplayer Session

Multi-Party Same Universe

Run multiple parties in the same persistent world. Their actions affect each other - one party's choices ripple through the universe.

Party Management

Shared treasury, inventory tracking, quest logs, and party composition. Manage your adventuring company like a real team.

Real-Time Sync

WebSocket-powered sessions ensure everyone sees updates instantly. No refresh needed - it's like being at the same table.

Whispers & OOC Chat

Private messages between players or the GM. Out-of-character chat for coordination without breaking immersion.

Characters

Intelligent NPC Generation

Every character has a soul - with memories, motivations, and relationships

Aldric Stormwind
Tavern Owner • Human • Neutral Good
Gregarious Secretive Past Protective
Former adventurer who retired after a tragedy. Runs The Broken Compass inn, always eager to hear tales from travelers.
Thessalia Moonshadow
Court Mage • Elf • Lawful Neutral
Calculating Ancient Knowledge Ambitious
Advisor to the throne for three generations. Her true loyalties remain a mystery even to those closest to her.

Complete Personalities

Each NPC has backstory, motivations, fears, and goals that drive their behavior.

Memory & Relationships

NPCs remember past interactions and form opinions about player characters.

Establishment Staff

Generate entire establishments with staff, inventory, and interconnected storylines.

AI-Powered

Flexible AI Architecture

Run locally with Ollama or connect to cloud providers - your choice, your data

Local AI with Ollama

Recommended

Run AI models entirely on your own hardware. Complete privacy, no internet required, lightning-fast responses.

  • Your data never leaves your network
  • Zero latency - instant responses
  • No subscription fees
  • Works offline
Llama 3.1 Mistral Qwen +More

Cloud AI Providers

Connect to leading AI providers for maximum capability. Perfect when you need the most advanced models available.

  • Access to cutting-edge models
  • Scalable performance
  • No hardware requirements
  • Automatic updates
OpenRouter Claude GPT-4 +More
Universal Support

Any RPG System

From classic AD&D to modern systems - import any rulebook and play

AD&D

Advanced D&D

Classic first edition rules with THAC0, saving throws, and traditional gameplay.

1st Edition 2nd Edition
Traveller

Traveller

Sci-fi adventures with character creation, starship combat, and subsector generation.

Classic Mongoose
D&D 5E

D&D Fifth Edition

Modern streamlined rules with advantage/disadvantage and bounded accuracy.

Core Rules Expansions
CoC

Call of Cthulhu

Cosmic horror with sanity mechanics, investigation, and Lovecraftian mysteries.

7th Edition Pulp
PF

Pathfinder

Deep customization with extensive class options and tactical combat.

1st Edition 2nd Edition
+

Your System

Import any PDF rulebook. Our AI learns the rules and helps you play.

PDF Import Homebrew
Technical

Microservices Architecture

Built for reliability, scalability, and extensibility

Frontend
Sacred Interface Web UI
Gateway
Integration Nexus API Router
Core Services
Grand Architect AI Orchestration
Character Forge Characters & NPCs
Combat Oracle Combat Resolution
Fate Weaver Story & Quests
Data Layer
Memory Keeper Session Memory
PostgreSQL Game State
ChromaDB Vector Store
Redis Cache

Be the First to Know

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