D&D Dungeon Maker

Aimed at dungeon masters and game designers, this tool quickly generates modular dungeon layouts and encounter ideas for any level of play.

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About This Tool

The tool generates modular dungeon layouts for tabletop RPGs, offering theming options (fortress, ruins, cavern) and seed-based variability. It produces a connected layout, room templates, encounter prompts, traps, and loot ideas aligned to party level and difficulty. Conceptually, generation relies on a seed to drive a controlled randomness engine that assigns room blocks, connects corridors, and selects encounters from themed tables. This enables consistent repeatable results across sessions while still allowing unique variations. Beneficiaries include game masters seeking rapid map scaffolds, narrative designers crafting modular adventures, and studios prototyping dungeon-heavy campaigns. The value lies in reducing pre-session prep time, ensuring plausible dungeon layouts, and providing ready-to-use encounter hooks that scale with party strength. Core features include: themed layouts, scalable room blocks, connected graph generation, encounter and loot prompts, and deterministic re-generation from a seed. Typical use cases range from one-shot encounters to multi-session campaigns and education in map-based storytelling. If a dungeon needs to fit a specific party level, the tool adjusts monster density and treasure tiers accordingly, while maintaining thematic coherence. Outputs are designed for easy import into other tools or manual refinement by the DM.

How to Use

  1. Provide inputs: select theme, set party_level and party_size, specify max_rooms and difficulty.
  2. Choose optional features: include_traps, seed, and export format.
  3. Run generation: the tool computes a connected dungeon layout with encounters and loot prompts.
  4. Review outputs: inspect the map description, encounter hooks, and treasure suggestions.
  5. Export or save: export as JSON/text or copy for map notes.
How to use d&d dungeon maker

Frequently Asked Questions

Find Quick Answers

How does party level affect results?
Party level influences encounter density, monster CR scaling, and loot tier. Higher levels yield more challenging encounters and better treasure, while preserving overall map connectivity and thematic fit.
Can I reuse a generated layout later?
Yes. If you provide the same seed and settings, the tool regenerates the same layout and encounter prompts, enabling consistent session planning across play sessions.
What export formats are available?
Exports include JSON summaries with layout and encounter data and plain text notes. Some integrations may support additional formats via downstream pipelines.
Is this tool offline and browser-based?
Yes. The generator operates fully client-side in your browser using a seeded RNG and does not require server calls, ensuring offline accessibility.

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