Black Box Dungeon Master

Grow living dungeons inside mountains. In your browser.
Spawn encounters, build traps, reward epic heroism.

The Octile Grid

Octagons linked by connector diamonds — a truncated square tiling that lets rooms of any shape coexist without grid artifacts. The geometric heart of DM.

Learn the grid →

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Cells & Walls

Click to cycle wall states. Paint cell types. Sims-style direct manipulation for laying out dungeon bones, then layer on textures and trim.

Edit your dungeon →

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Challenge Compass

A four-axis radar — Physical, Mental, Social, Creative — shows the shape of the experience you're building. Balance is the teacher.

Read the compass →

Dungeon in Three Steps

Lay the bones Pick octagon cells on the grid. Cycle connector diamonds on the diagonals to link them up. The grid keeps your geometry coherent — rooms share walls, corridors hold their proportions.
Dress and populate Paint cell types (rooms, shrines, vaults, boss arenas). Place NPCs, props, and traps. Cycle wall states for doors, openings, and secret passages. Watch the energy meter tell you what you can afford.
Save to poqpoq Export as a .bbd file, or click Save to poqpoq. Your dungeon becomes a NEXUS instance — a portal in poqpoq World that players can walk through.

Read the full walkthrough →

What's in the Toolkit

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Getting Started

Your first dungeon, end to end

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The Octile Grid

Octagons + connector diamonds

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Cells & Walls

Cell types, wall cycling, textures

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