DunMax: World Building

Obsidian Oak Digital

In-app purchases

About this app

DunMax is a worldbuilding app for Dungeon Masters, Game Masters, writers, and tabletop RPG creators. Build complete worlds for DnD, Pathfinder, or any TTRPG — generate NPCs, design cities, and craft rich lore in seconds. Stop scrambling for details mid-session. Start building worlds that feel alive.

BUILT FOR DUNGEON MASTERS & CREATORS
Whether you run Dungeons & Dragons, Pathfinder, or any tabletop RPG, DunMax gives you the tools to create faster and improvise with confidence.

Perfect for:
-Dungeon Masters & Game Masters prepping campaigns and one-shots
-Tabletop RPG players building character backstories
-Writers and worldbuilders crafting fantasy settings
-Solo RPG players and lore enthusiasts

POWERFUL AI GENERATION
-Customized recommendations based on everything you have made!
-AI Image Generation
-Create stunning character portraits, location art, items, and scene illustrations from simple descriptions. Choose from 6 art styles per creation type — 36 total options. See your world, not just imagine it.
-AI Voice & Audio Generation
16 unique AI voices bring your world to life. Generate dramatic narration, villain monologues, cryptic prophecies, and ambient storytelling. Play them at the table or use them for session prep.
-Custom Attributes
Add anything: political intrigue, cultural traditions, magical side effects, rumors, secret motivations, or tavern food ratings. Your world, your rules — and yes, custom attributes can be narrated too.

ORGANIZE YOUR ENTIRE WORLD
Everything lives inside Worlds. Each one holds:
Characters — NPCs, villains, allies, and legends with rich backstories and AI-generated portraits
Cities & Towns — From bustling capitals to forgotten villages, complete with districts and local flavor
Regions — Kingdoms, wildernesses, enchanted realms, and beyond
Factions — Guilds, cults, governments, and secret orders driving political intrigue
Events — History, prophecies, wars, and turning points on your world's timeline
Points of Interest — Dungeons, taverns, hidden shrines, and mysterious landmarks

No more scattered notes across apps and documents. Your entire world stays connected, searchable, and expandable.

WHY DUNGEON MASTERS LOVE DUNMAX
-Generate detailed NPCs in seconds with the built-in NPC generator
-Never say "Uh... I'll get back to you on that" again
-AI-assisted creativity that enhances your ideas, not replaces them
-Browse your creations offline for game night flexibility
-Clean, intuitive interface designed for quick session prep access

YOUR WORLDS DESERVE BETTER TOOLS
Worldbuilding should feel exciting, not exhausting. DunMax handles the tedious parts so you can focus on what matters: telling unforgettable stories.
The all-in-one NPC generator, campaign manager, and fantasy worldbuilding tool — built for tabletop RPG creators who value their time.

Download now. Build your first world in minutes.

What’s new

Got a very large update coming in! Fixed some bugs and added a few new features.
- World creation is significantly more detailed and comes with recommendations for your first creations
- You can now request AI recommendations for building out you world. This will take in all the things you have currently made as well as any notes you have added
- Max world limit increased for free users
- Added ability to 'link' items for quick navigation
- 'Tree' tab now shows a tree of linked items (WIP)