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DunMax: World Builder

DunMax: World Builder

Deep AI Fantasy World Building

5 ratings
5 reviews
🎬 Entertainment
🔍 Reference
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 24, 2026
  • August 23, 2026

Features

Developer

Obsidian Oak Digital
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DunMax: World Builder screenshot #1 for iPhone
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iphone
ipad
🧾$4.99 - $19.99
In-App Purchase↘︎
⭐5
Reviews↘︎
❓8 answered
FAQ↘︎
📦~ in 1 month
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About

This AI-powered companion assists creators in building detailed campaign worlds, generating NPCs, cities, and lore quickly. It organizes all world elements within campaigns, offering image and audio generation to bring your creations to life.

✓AI-powered world generation
✓Generate NPCs, cities, and lore
✓Image and audio creation tools
✓Organized campaign management
✓Customizable attributes for unique details
✓Supports various RPG systems
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What's New in DunMax

1.2.0

August 23, 2026

- All generation models upgraded to latest. Insight level has been deprecated, everything is 'smart' now. - Manually add creations to your collection. Character, cities, POIs etc. - Create an share 'Creation Cards', which are cool 'trading card' style renditions of your creations - All creations now have a backstory/history attribute by default. This gives everything a little more life and flavor! - Bug fixes and improvements.

More

Subscription plans

Premium Subscription (Monthly)

Unlock all app features: Images, Audio Narration & more

$6.991 Month
3 Days trial
How to cancel DunMax subscription ⁉️
3

In-App Purchases

$4.99

Pouch of Gold

A pouch of 500g. Never expires!

User reviews

Most RecentHighest RatedLowest Rated

All AI based and no real control

I was looking for an app where I could honestly write everything myself and create the world myself but this is ALL just ai. You can’t create your own world, it’s reliant on just ai generated prompted slop.
KayootieCutieKayootieCutie

Response from developer

Hello. The app is explicitly described as an AI-powered world building app :) There have been requests for manually inserting creations which we are working on! We hope you will give our next update another try. August 24th Update: We have added the capability to make any addition you want into a world :) The world (save file) still needs to be ai generated but you can add anything you want into it now!

Ztree

Fun app. I like to use it in my downtime to see how detailed I can make my worlds.
ZoltantreeZoltantree

Perfect for newcomers

I just started playing and this has helped me envision my player the way I want it! Great start can’t wait for future updates!
RokcyqRokcyq

Beauitful

I knew an ai app like this was down the line and finally someone made it. Highly recommend .
MsjendbskwndndMsjendbskwndnd

Response from developer

Thank you very much! Happy to hear that

Saved me a lot of time!

Great app that helps me design my DnD world quickly! Saves me a lot of time when my players do something unexpected
Mel ZakMel Zak

Response from developer

Thank you very much! Glad you enjoy using it

FAQ

What is DunMax used for?

DunMax is an AI-powered tool designed to help Dungeon Masters, Game Masters, writers, and tabletop RPG creators build detailed campaign worlds, generate NPCs, design cities, and develop lore quickly and efficiently.

Can DunMax generate images and audio?

Yes, DunMax features AI creation tools that can generate stunning character portraits, dramatic landscapes, mysterious locations, and iconic items. It can also create audio elements like villain monologues, prophecies, and narrative voiceovers to enhance immersion.

How does DunMax organize world elements?

All your worldbuilding elements are organized within Campaigns. Each campaign can contain characters, cities, regions, factions, events, and points of interest, making your entire world connected, searchable, and easy to expand.

Is DunMax suitable for players as well as GMs?

While primarily built for Dungeon Masters and Game Masters, DunMax is also perfect for players crafting deep character backstories and for writers building fantasy worlds. Its organizational and creative tools can benefit anyone involved in world creation.

Does DunMax work with different RPG systems?

Yes, DunMax is built to adapt to your creative style and is suitable for running Dungeons & Dragons, Pathfinder, or your own homebrew systems. It aims to enhance creativity without replacing the user's role.

What kind of custom attributes can I add in DunMax?

You can add any unique details relevant to your world, such as political intrigue, cultural traditions, magical side effects, secret motivations, or regional cuisine. DunMax allows for limitless customization to make your setting breathe.

What devices does DunMax support?

DunMax is available on iPhone, iPad, and iPod, making it accessible for users on various Apple devices.

How often is DunMax updated?

The latest version of DunMax is 1.0.2, and it was last updated on February 24, 2026. This indicates a recent release and ongoing development.