dungen.app

What It Is

DunGen is a dungeon map generator for tabletop role-playing games, with a core focus on creating high-resolution maps that can be used directly in virtual tabletops such as Roll20, Foundry VTT, Fantasy Grounds, and Astral. It is closer to an algorithmic map-making tool than a general-purpose AI app built on large models; the main text does not disclose any LLM, diffusion model, or prompt-based generation capabilities.

Core Features

DunGen supports seed-based reproduction, eight themes, maximum map size settings, tile size options, multi-level dungeons, and furnishing options. Its key differentiator is its custom algorithm: compared with common maze-style generators, it claims to produce more “logical” maps and offers more variety in non-rectangular rooms. For VTT users, the most practical feature is its advanced integration: Patreon users can generate Roll20 Dynamic Lighting, Foundry VTT Walls, and Fantasy Grounds Unity LoS Definitions.

Pricing and Licensing

Basic generation is available to everyone, while advanced features are unlocked via Patreon. Dungeon Designer includes automatic dynamic lighting, walls, and line-of-sight definitions; Dungeon Architect adds 140px-per-grid high-resolution downloads, the full tileset, and a custom-map dynamic lighting tool; Dungeon Merchant includes a commercial license. The main text does not disclose specific monthly pricing. The terms of service clearly state that usage is limited to personal, non-commercial purposes by default, and commercial use requires the appropriate license.

Pros and Cons

Its strengths are clear positioning, high-resolution maps, multiple themes, and direct support for tabletop campaign workflows. The seed mechanism also makes it easy to reproduce maps and switch styles. The limitations are also apparent: it cannot yet generate complete encounters, room descriptions, or trap designs. Special Rooms is still in beta and limited in quantity. Some features depend on Roll20 Pro, scripts, or Patreon, and odd-sized maps in Fantasy Grounds may still require manual grid adjustment.

Who It’s For and Access from China

DunGen is suitable for D&D/tabletop GMs, VTT map makers, and small RPG content creators, especially those who need to quickly generate scenes that can be imported into Foundry or Roll20. Chinese-language support is not mentioned, and the interface and documentation appear to be primarily in English. The main text provides no information on access or payment availability from mainland China, and Patreon payments may vary depending on individual network and payment conditions. If access is unstable, local map-making tools or other dungeon generators may be worth considering as alternatives.