2003 · 소스북(플레이 향상용 규칙/옵션)

Monsters of the Endless Dark

This illustrated d20 monster manual presents dozens of subterranean creatures and the underground realms they inhabit. Each entry includes descriptions, artwork, and notations covering details such as diet, habitat, and sleeping habits. The collection is framed as a guide compiled from decades of exploration, providing material for adventures in unlit realms of earth and stone. An accompanying online resource offers community support and fan-submitted entries.