AI Toolbox for Game Masters

Turn photos into creatures, auto-build dungeons, generate loot, quests, and puzzles for 8 TTRPG systems including D&D, Pathfinder, OSR, and narrative games.

  • Forge monsters and NPCs from photos
  • Auto-build dungeons, puzzles, and quests around your party
  • Save everything in your Library for later sessions
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New here? Quick 3-Step Session Prep

Get a session ready in minutes with these three tools

20+ Tools for Game Masters

Choose a category to explore, or scroll to see everything

🌎 World & Setting

Shape your world: towns, factions, timelines, and key locations

🏘

Town/Hub Generator

Settlements with districts, locations, NPCs, rumors, and adventure hooks.

Open Town Tool
🏴

Faction Generator

Organizations with leadership, agendas, resources, and secret plots.

Open Faction Tool
📅

Calendar / Timeline

In-world calendars with events, festivals, and looming threats.

Open Calendar Tool
🚪

Dungeon Room

Individual locations with hazards, secrets, loot, and details.

Open Room Tool
🎯

d100 Table Generator

Random tables for events, NPC quirks, weather, and more.

Open d100 Tool

🐉 Creatures & NPCs

Create monsters, companions, bosses, and complex social webs

🐉

NPC Designer

Turn photos into monsters, companions, or familiars with stat blocks and PDFs.

Open Creature Tool
👹

Boss Creator

Multi-phase bosses with lairs, minions, and unique mechanics.

Open Boss Tool
🕸

NPC Relationship Web

Interconnected NPCs with relationships, secrets, and plot hooks.

Open NPC Web Tool
🧟

Template Expander

Apply undead, elemental, or aberrant templates to base creatures.

Open Template Tool

⚔ Adventures & Encounters

Build dungeons, encounters, quests, and random events

🏰

Dungeon Generator

Room lists, encounters, hazards, and hooks tailored to your party.

Open Dungeon Tool

Encounter Pack

3-scene encounter packs with combat, social, and exploration.

Open Encounter Tool
📜

Quest Generator

Hooks, objectives, scenes, and rewards for your adventures.

Open Quest Tool
📖

Adventure Seed

Complete 3-act session outlines with cliffhangers and drama.

Open Adventure Tool
🧩

Puzzle Generator

Riddles, mechanisms, and challenges with hints and outcomes.

Open Puzzle Tool
🗺

Map Sketch

Text-based map sketches with nodes, connections, and ASCII diagrams.

Open Map Tool
🎲

Chaos Button

Random story twists and campaign-changing events.

Press the Chaos Button

⚔ Items & Gear

Generate equipment, treasure, and rewards

Item Generator

AI-crafted magic items with system-specific stats and lore.

Open Item Tool
💎

Loot Generator

Treasure hoards, quest rewards, and boss drops by level.

Open Loot Tool

Spell Builder

Design SRD-safe custom spells with casting details and effects.

Open Spell Tool

🏪 Shops & Establishments

Generate in-world businesses and hangouts

🏪

Magic Shop

Shops with inventories, quirky owners, and adventure hooks.

Open Shop Tool
🍺

Tavern / Inn

Social hubs with staff, menus, regulars, and events.

Open Tavern Tool
🔨

Blacksmith / Armory

Weapons, armor, shields with specialty types and craftsmen.

Open Blacksmith Tool
🧪

Apothecary

Potions, herbs, augments, and forbidden concoctions.

Open Apothecary Tool
📚

Bookshop / Library

Arcane tomes, history scrolls, and forbidden knowledge.

Open Bookshop Tool
🐴

Stables / Transport

Mounts, vehicles, warhorses, and cargo transports.

Open Stables Tool

Shipwright / Dockyard

Vessels, repairs, warships, and salvage operations.

Open Shipwright Tool

Cafe / Social Hub

Cozy cafes, diners, speakeasies, and gathering places.

Open Cafe Tool

🎮 Game Management

Tools for running the game live

Encounter Runner

Track initiative, HP, conditions, and turns during combat.

Open Encounter Runner
💬

Campaign Assistant

AI Co-DM for real-time advice, rulings, and improvisation.

Open Campaign Chat

Already generated content? Visit your Library to view and manage your creations.

Go to Library

Pricing

GameMasters.guru is currently free while in beta. Pro features are coming soon.

Free (Beta)

$0

  • Unlimited use of all 20+ generators while in beta
  • Access to your Library for saved content
  • 8 TTRPG systems (D&D, Pathfinder, OSR, narrative)
  • 14+ genre themes from fantasy to sci-fi and beyond
Current Plan