While no official Caverns of Thracia 3.5 PDF exists, a fan conversion circulates online, updating the classic dungeon to 3.5 rules. It preserves the legendary mapping and exploration style while rebalancing encounters for the d20 system. DMs seeking old-school challenge with modern mechanics can adapt the original Judges Guild PDF using a conversion guide or find a fan-produced file with caution regarding copyright.
: The caverns are a powder keg of warring factions. The surface is often ruled by a death cult (worshippers of Thanatos), while the depths are home to the Minotaur King and his "beast men" (gnolls, minotaurs, and dog brothers). Lizard Men caverns of thracia 3.5 pdf
| OD&D / Basic | D&D 3.5 | |---------------|----------| | AC (descending) | 20 – listed AC = ascending AC | | Hit Dice | Keep HD; add CON mod for important monsters | | Saving throws | Use Fort/Ref/Will by monster type (e.g., humanoid: good Ref) | | Treasure XP | Ignore; use 3.5 CR-based XP | | Traps | Convert to Search DC ~20–25, Disable Device DC ~20–30 | While no official Caverns of Thracia 3
How Jennell Jaquays Evolved Dungeon Design, Part 2 - Pathika : The caverns are a powder keg of warring factions
Would you like assistance writing a conversion guide instead, or a detailed encounter example for 3.5?