DunMax: World Building

1.1.1

Obsidian Oak Digital

4.40

8 reviews

500+
Downloads

Free

AI worldbuilding for Dungeon Masters. Generate NPCs, cities & campaigns fast.

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iOS version

About DunMax: World Building

DunMax: World Building is an entertainment app developed by Obsidian Oak Digital.

Download Statistics

DunMax: World Building has been downloaded 920 times. In the last 30 days, the app was downloaded 340 times.

User Ratings

DunMax: World Building is rated 4.40 out of 5 stars. The rating is based on 8 ratings.

App Information

DunMax: World Building is FREE to download. The APK download size is 49.01 MB. The latest version available is 1.1.1. The last update was on June 3, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play April 2026.

Description

DunMax is an AI-powered worldbuilding app for Dungeon Masters, Game Masters, and tabletop RPG creators. Build entire DnD, Pathfinder, or Call of Cthulhu worlds. Generate charactesr, design cities, create factions, and craft lore in seconds. It's the campaign manager, NPC generator, and fantasy worldbuilding tool built for DMs who actually want to enjoy prep again.

It's Friday night. Your players just wandered into a tavern you haven't named yet. The barkeep has no personality. You're pretending to check your notes.
We've all been there. DunMax exists so you don't have to be, ever again.

BUILT BY A DM, FOR DUNGEON MASTERS
If you've ever prepped for six hours and used 10% of it, forgotten an NPC's name the second a player asked, or stared at a blank doc wondering what a goblin eats for breakfast — you're why this app exists.

Whether you're running Dungeons & Dragons, Pathfinder, or your own homebrew TTRPG system, DunMax helps you build fast, improvise harder, and actually enjoy worldbuilding again.

Perfect for:
Dungeon Masters and Game Masters prepping D&D campaigns and one-shots
TTRPG players writing character backstories
Writers and worldbuilders building fantasy settings
Solo RPG players and lore obsessives

AI THAT ACTUALLY HELPS (NOT THE ANNOYING KIND)
Smart Recommendations — DunMax reads everything you've built in a World and suggests what's missing. A rival faction for that paladin order. A darker secret for that cheerful port city. A rumor connecting two NPCs who've never met. The more you build, the sharper the suggestions get.

AI Image Generation — Generate character portraits, cityscapes and scene art from a quick description. Six art styles per creation type, 36 total options — from gritty oil-painting to vibrant watercolor to cinematic fantasy. Your NPCs finally look like they do in your head.

AI Voice & Narration — 16 distinct AI voices for dramatic readings, villain monologues, cryptic prophecies, and that one cursed NPC who only speaks in riddles. Play them at the table or use them to nail a character voice before session.

Custom Attributes — Track whatever you want. Political debts. Cultural taboos. Magical side effects. Secret motivations. The local tavern's stew rating. Your world, your rules — and yes, custom attributes get narrated too.

EVERYTHING LIVES INSIDE WORLDS
A World is your campaign, your setting, your save slot. Each new World comes pre-seeded with starter content and recommendations, so you're never staring at a blank page. Every World holds:

Characters — NPCs, villains, gods, merchants, and legends with rich backstories and AI-generated portraits
Cities & Towns — From trade capitals to forgotten hamlets, with districts, laws, and local flavor (your D&D city generator, basically)
Regions — Kingdoms, wildernesses, shattered realms, underdark depths
Factions — Guilds, cults, cabals, and political orders quietly plotting in the background
Events — Wars, prophecies, cataclysms, and the harvest festival that went terribly wrong
Points of Interest — Dungeons, taverns, shrines, and that suspicious tower nobody talks about

No more scattered notes across apps and docs. Your entire fantasy world stays connected, searchable, and offline-ready for game night.

WHY DUNGEON MASTERS KEEP DUNMAX OPEN DURING SESSIONS
Generate a full NPC in seconds when a player asks about the innkeeper's cousin
Get AI-powered recommendations that riff off your existing lore, not generic fantasy mush
Actually prep a session in 20 minutes instead of two hours

WORLDBUILDING SHOULD BE THE FUN PART
That's the whole pitch. DunMax handles the grind — the naming, the backstories, the "what does this city export?" — so you can spend your time on what makes a campaign unforgettable.

Download DunMax. Build your first World tonight. Your players don't need to know how fast it was.

Recent changes:
Lots of improvements and changes to UI/UX

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More data about DunMax: World Building

Price	Free to download
Total downloads	920
Recent downloads	340
Rating	4.40 based on 8 ratings
Ranking	Not ranked
Version	1.1.1
APK size	49.0 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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DunMax: World Building compared with similar apps

Common keywords of similar apps

Dunmax Masters Worldbuilding Cities Fast Built Backstories Recommendations City Building Campaigns Powered Entire Pathfinder Factions Seconds Enjoy Prep Night Notes Exists Hours Forgotten Player Blank Ttrpg Helps Secret Portraits World Ai Dungeon Fantasy Generate Npcs Build Players Game Lore Campaign Npc Character App Rpg Worlds Generator Dungeons

Keywords missing from this app

Story Play Strong Master Characters Adventure Create Random Endless Real Tabletop Li System Free Full Recent Items Text Map Chat Features Names Maps Experience Dice Adventures Dnd Explore Magic Solo Save Custom

Google Play Rating history and histogram

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Downloads over time

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DunMax: World Building has been downloaded 920 times. Over the past 30 days, it averaged 11 downloads per day.

Changelog of DunMax: World Building

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Developer information for Obsidian Oak Digital

Obsidian Oak Digital

help@dungeonessmaximus.com

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Comments on DunMax: World Building for Android

★★★★★ Richard Issa · Jan 15, 2026

Best app ever. It helps so much with the creation process, and I am able to create vast sprawling worlds filled with characters that feel alive. Its amazing

★★★★★ Brad waugh · Jun 3, 2026

Had an issue with the app dropping all my gold. They did more than they had to in making it right for me. Love this app as it frees up my time for running my world rather than building it.

★☆☆☆☆ LEO · May 9, 2026

Cant make a world, I think due to the options being off screen & the window not being scrollable to get at the options, same on social screen when pressing the button (top right) the dropdown options seem to continue off the bottom of the screen. Would be fine if these windows were in their own scrollable box in case of scaling problems but until then I can't do step 1.

★★☆☆☆ Clark Michael Zafra · Mar 26, 2026

Meh. Too many limitations and you cannot create your own unless you purchase subscription. Though it has a lot of potential, I just don't like that everything has to come from AI. Well, hence the name.

Google Play Rankings for DunMax: World Building

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Technologies used by DunMax: World Building

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