Your Adventure Begins Here
DM's Tome is a free, all-in-one toolkit for tabletop RPG game masters. Whether you're prepping your first session or building a full campaign, everything you need is here: NPC & monster generators, procedural dungeon maps, pre-built story arcs, quick rules reference, and a session planner that exports to PDF.
When in doubt, ask your players: 'What do you want to do?'
What is DM's Tome?
Running a tabletop RPG game can feel overwhelming, especially the first few times. DM's Tome puts every tool you need in one place so you can focus on telling great stories instead of drowning in prep work. Browse a library of ready-to-use NPCs and monsters, generate new ones on the fly with built-in generators, explore procedurally-created dungeon maps, follow pre-built story arcs, and plan your entire session with a step-by-step wizard that exports a polished PDF you can bring to the table. No accounts, no sign-ups, no cost. Just open it and start building your adventure.
Quick Start
Plan a Session
Step-by-step wizard with built-in NPC & monster generators, then export a polished PDF
→⚔️Browse Story Arcs
Pre-built campaign templates with encounters, NPCs, and story beats ready to run
→🧙NPC Library
59 fully-detailed characters with personality, motivation, secrets, and key dialogue
→🐉Bestiary
20 monsters with full stat blocks, ability scores, tactics, and DM tips
→Built-In Generators & Tools
NPC Generator
Generate fully-fleshed NPCs on the fly: personality, motivation, a hidden secret, and three lines of key dialogue. Choose a role (Ally, Antagonist, Quest Giver, Neutral) and get a character ready to roleplay in seconds.
Monster Generator
Pull a random monster from the bestiary with full stat blocks: AC, HP, ability scores, actions, tactics, and DM tips. Filter by challenge rating to match your party's level.
Dungeon Map Generator
Procedurally generated maps with room numbers, corridors, terrain, and a full room key. Choose from dungeon, wilderness, or urban environments. Each map is unique and seeded for consistency.
PDF Session Export
Plan your session step by step, save your favourite NPCs and monsters, link maps, then export everything as a beautifully formatted PDF, complete with rendered map images.
Your DM Toolkit
Map Generator
Procedurally generated dungeon, wilderness & urban maps with room keys
Quick Rules
Searchable rules reference for mid-session lookups
Bestiary + Generator
Full monster stat blocks with a random pull generator
NPC Library + Generator
59 NPCs plus a random NPC generator with dialogue
Story Arcs
Complete multi-session campaign templates
Session Planner
Plan, generate, and export your game as a PDF