The first non-TSR product I ever used in a game was the first volume of The Arduin Trilogy which is The Arduin Grimoire.
It was quirky and full of wild ideas, tiny print only young eyes could
read without help and generally just had so many different things in it
ranging from completely silly to brilliant that I found it inspiring .
It set the standard of there are no limits, this can be as wild as you
want it to be. I hope to talk about some of the things I used out of Vol
I going forward from here. A thing to remember is this started out as a
OD&D fan supplement until TSR sent a CEASE & DESIST
letter to Dave Hargrave. So he whited out the D&D references,
typed over them and kept printing.
Here are the unedited Table of Contents from the first three volumes - The Arduin Trilogy:
Table of Contents (unedited) The Arduin Grimoire Vol I:
How to Play the Game
Experience Point Chart
Experience Level Charts
Character Limitation Charts
Height and Weight Charts
Notes on Fantastic Beings
Allignment Chart
Special Abilities Charts
New Character Classes
Multiversal Trading Co. Price List
Magik in Arduin
Clerical Undead Turn-away Charts
Various Saving Roll Charts
Random Chance Weapon Creation Chart
Prismatic Walls
New Spells
New Magikal Treasures
Notes on Allignment, Combat, Movement, Monsters, etc.
Melee and Attack Charts
Main Combat Table
Critical Hit and Fumble Charts
Brawl Chart
Were-creatures Combat Chart
Dinosaur Charts
Sea Creatures List
Escape Table
Encounter Charts
Weather Tables
Random fog/mist Generator
Random Trap Matrix
Fantastic Diseases
New Monsters
Demon Lore
The 21 Planes of Hell
Lesser Demon Lists
Here is the Table of Contents for Welcome To Skull Tower Vol II (without any editing):
TABLE Of CONTENTS
Notes on character functions, capabilities and characteristics
New character classes
Character Saving-Throw and Limitation Charts
Character Resurrection and Reincarnation Charts
Non-Weapon Attack Matrix and Critical Hit Charts
Real medicine and fantasy gaming
Gunnery Charts
Monster-Slaying Experience Charts
General Hireling Pay Scales
Multiversal Trading Company Price lists, Price Examples, etc.
Coinage Value Chart
Gems and other valuables
New Mages' Spells
New Druidical Magik
New Clerical Magik
New Treasure
New Monsters
Dungeon Sign Posts
Rules changes and additions
Notes on Magik
Notes on Combat
Weapon Breakage Chart
Weapon Classification Tables
Miscellanous Notes
Travel Notes and Charts
"Stoning" Save Chart
Comments
Arduin, its Seasons and Days
Arduinian Guilds and Societies
Religion in Arduin
Law and Punishment
Rank and Royalty
Arduin, a Capsule History
The Elf-Human Wars
The Inns and Roadhouses of Arduin
Undead Attack Chart
Space Creatures and Aliens
Here is the Table of Contents for The Runes of Doom Vol III (without any editing):
TABLE OF CONTENTS
Character individualization, leqacy and equipnent charts, etc.
Character aging
Natural Character Armor Classes
Random events, charts, solo DM'ing, etc.
New character classes
Resurrection and other clerical notes
New Character Hit Point System
Guild fees
Random Life Style Changes
Combat and Other Notes
Energy Weapons (Chart) in fantasy games
New Magikal Items
New Mages Spells . .
New Clerical Magik
New Druidical Magik
"Techno Magik"
Hell Spirals
100 New Monsters .
True Elementals
New Lesser Demons
The Great Name Demons
Arduin's Principle Noble Familys .
The Bandits, Brigands & Highwaymen of Arduin
Denizens of Arduin's "under citys"
Notable Characters of Arduin's Legends
Principle Wild Tribes of Arduin :
Arduin' s Dungeons, Towers, Cavarns and other areas of Death & Glory
A Message to the Fans of Arduin