2004 · 소스북(플레이 향상용 규칙/옵션)

Monster Geographica: Underground

This supplement compiles 200 monsters from underground environments, including 92 classic 3.0 creatures updated for 3.5 rules and material drawn from more than a dozen sources. It supports random encounters, adventure building, and campaign design with creatures organized by challenge rating, keeping monsters of the same difficulty together for quick reference. An alphabetical contents section also lists creatures by type and subtype, with entries arranged by challenge rating.