The System Reference Document is a comprehensive toolbox consisting of rules, races, classes, feats, skills, various systems, spells, magic items, and monsters compatible with the d20 System version of Dungeons & Dragons and various other roleplaying games from Wizards of the Coast. You may consider this material Open Game Content under the Open Game License, and may use, modify, and distribute it.

   
Legal Information  
Basics and Ability Scores  
Alignment and Description  
Races  
Character Classes I  
Character Classes II  
Skills I  
Skills II  
Feats  
Equipment  
Special Materials  
Combat I Basics)  
Combat II Movement, Modifiers, and Special Actions)  
Special Abilities and Conditions  
NPC Classes  
Prestige Classes  
Epic Levels  
Magic Overview  
Spell List I  
Spell List II  
Spells A-B)  
Spells C)  
Spells D-E)  
Spells F-G)  
Spells H-L)  
Spells M-O)  
Spells P-R)  
Spells S)  
Spells T-Z)  
Magic Items I Basics and Creation)  
Magic Items II Armor and Weapons)  
Magic Items III Potions, Rings, and Rods)  
Magic Items IV Scrolls, Staffs, and Wands)  
Magic Items V Wondrous Items)  
Magic Items VI Intelligent, Cursed, and Artifacts)  
Monsters Intro-A)  
Monsters B-C)  
Monsters D-De)  
Monsters Di-Do)  
Monsters Dr-Dw)  
Monsters E-F)  
Monsters G)  
Monsters H-I)  
Monsters K-L)  
Monsters M-N)  
Monsters O-R)  
Monsters S)  
Monsters T-Z)  
Monsters Animals)  
Monsters Vermin)  
Types, Subtypes, and Special Abilities  
Improving Monsters  
Monster Feats  
Monsters as Races  
Carrying, Movement, and Exploration  
Treasure  
Wilderness, Weather, and Environment  
Traps  
Planes  
Psionic Classes  
Psionic Skills  
Psionic Feats  
Psionic Combat  
Psionic Powers Overview  
Psionic Powers List  
Psionic Powers ABC  
Psionic Powers DEFGH  
Psionic Powers IJKLMNOP  
Psionic Powers QRSTUVW  
Psionic Disease  
Psionic Creatures  
Psionic Items