City-State of the Invincible Overlord (Mayfair) (1987)

This edition of the City-State of the Invincible Overlord was entirely revised and rewritten from the earlier Judges Guild editions. This edition includes a 32-page Background and Encounter Book with random monsters, an 80-page Map and Population Book with extensive details about the city, various small race and class booklets, and various maps.

• Map and Population Book (80 pages, stapled)
• Background and Encounter Book (32 pages, stapled)
• To Catch a Thief (16 pages, stapled)
• Attention, All Who Enter (4 pages, folded pamphlet)
• City Guide to Briarwood : Clerics, Druids, Monks and Paladins (8 pages, stapled)
• City Guide to Briarwood : Fighters, Rangers and Paladins (8 pages, stapled)
• City Guide to Briarwood : Spell Users (8 pages, stapled)
• City Guide to Briarwood : Thieves (8 pages, stapled)
• Centaurs Race Book (8 pages, stapled)
• Lizardmen Race Book (8 pages, stapled)
• Nagas Race Book (8 pages, stapled)
• Pixies Race Book (8 pages, stapled)

• Two-sided colour poster map of the city of Briarwood on one side and the continent of Calandia on the other
• One-sided sepia-toned poster map of the city of Briarwood (same as other city map)

• Hex grid transparent overlay
• Square grid transparent overlay

User summary:

• City State of the Invincible Overlord in multiple revisions, 1977 - 1999, by Judges Guild
• City State of the Invincible Overlord (Revised d20) in 2004 by Necromancer Games

A successfully funded Kickstarter ran in early 2014 to revise and republish the material for Pathfinder Roleplaying Game (1st Edition) - to date, this has not appeared.