The Corpseless Coffin is a short Shadowdark annex dungeon for 1st–2nd level characters. Designed to be inserted into an existing dungeon, or played as a compact standalone adventure, it begins when an ancient stone coffin slowly emerges from a subterranean wall and compels the curious to climb inside.

The coffin is a doorway.

Beyond it lies a crumbling funerary structure perched above an endless black void. Pale fruit hangs in an overgrown garden, two prisoners offer conflicting stories, and spectral warriors guard the forgotten treasures of a dead god. Time passes strangely here: for every hour spent beyond the coffin, an entire day passes outside.

Inside:

A compact three-level dungeon that can be attached to any larger adventure

A time-distortion mechanic that allows the host dungeon to change while the party is away

Spectral Sentinels whose physical anchors must be destroyed before they can be harmed

Rival prisoners, poisonous fruit, shifting portcullises, hidden passages, and funerary treasure

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Made for Appx. N Jam 2026

This adventure is released under Creative Commons CC0. All original writing, layout, and design are dedicated to the public domain. Use, remix, or republish freely. Some art used under separate licenses; see the LICENSE file and PDF for full details.