The fiercest surprises often come from the most familiar foes! Just as no single class description can define every fighter, rogue, or wizard, no single creature entry can truly cover every vicious champion, unholy priest, or savage sorcerer in a band of organized and intelligent monsters.WithÂ Monster Codex, fleshed-out hordes are at your fingertips! This volume presents a trove of entries for 20 classic monster races, giving you new ways to use your favorite monsters in a variety of encounters and challenge levels. It's an indispensable companion to the Pathfinder Roleplaying Game Core Rulebook and Pathfinder Roleplaying Game: Bestiary. This imaginative tabletop game builds upon more than 15 years of system development and an Open Playtest featuring more than 50,000 gamers to create a cutting-edge RPG experience that brings the all-time best-selling set of fantasy rules into a new era.Inside, you'll find:â€¢ Pages upon pages of specialized entries for 20 classic monstrous races, from goblins and drow to kobolds and trolls. Face off against such formidable foes as gnoll packlords, ratfolk sages, and dinosaur-riding lizardfolk champions!â€¢ Detailed information on the ecologies and societies of these formidable creatures.â€¢ New feats, equipment, spells, and archetypes to help you customize all 20 monstrous races - and the adventurers who fight or trade with them.â€¢ A horrific new monster associated with each race - allies, thralls, and variants.â€¢ Sample encounters ready to challenge raw recruits and experienced adventurers alike.â€¢ ...and much, much more!