The d20 System
- Official site of the game engine and the Open Gaming License.
EN World
- Latest news and reviews, forums, a conversion library, and very popular forums. The quickest D20 news source with inside information on many upcoming products.
Ancient Worlds: Multicosm - Includes ancient Rome and Iceland campaign settings, new clases, feats, solo adventures, monsters, new rules, and product reviews.
The Boneyard - d20 conversions of creatures and rules from Advanced Dungeons and Dragons and Alternity.
d20 Magazine Rack - A site that has free downloadable electronic magazines such as d20Zine and TempesT's Lore, product reviews, gamer resources, and gaming contests.
d20 Modern Roleplaying Game - The official site for The Wizards of The Coast d20 Modern RPG. Features free articles, downloads and artwork for the game.
d20 Tools - Contains tools for the d20 system such as new equipment, feats, skills, classes, and characters.
DireKobold.com -- A D20 Adventure E-Zine - An internet D20 adventure magazine dedicated to the three principles of quality, quantity and flexibility.
Fantasy gaming SRD - SRD for d20 roleplaying games in a fantasy setting.
The Gundam D20 Homepage - This is the homepage of the free D20 role playing game system conversion for Mobile Suit Gundam.
The Hypertext d20 SRD - Contains the version 3.5 d20 system reference document and is indexed, hyperlinked, and searchable.
Modernized! - D20 Modern Ezine - A free ezine, published to the web, that provides new material, suggestions, and other useful bits for a D20 modern campaign.
Open Gaming Foundation - Contains Open Gaming Licenses and a clearinghouse for information about the system.
Palaestra: A Land of Magic and Intrigue - Maps, fictional stories, artwork, house rules, campaigns, and general game information
PCGen - A character generator and maintenance program aimed at supporting any and all d20 roleplaying games.
RolePlayingMaster - A software utility suite for D20/Dungeons and Dragons, incorporating character/NPC/monster generation, adventure building, and in-game combat/BattleMap manager.
RPG Vault - Features new races, feats, and classes for the DC and Everquest universes.
RPGAttitude: D20 RPG Site - A website that contains new generator programs for the D20 system such as the NPC and Treasure Generator.
RPGd20 - News and a list of all the companies making d20 products.
Ruby Covenant Roleplaying - Australian based web site that offers D and D and d20 roleplaying information and products to RPG fans.
Shadowrun D20 Conversion Site - A conversion site for the Shadowrun system by Wizkids to the D20 Format.
Starcon Continuum Homepage - New rules for a futuristic D20 campaign. Has information on starships, new skills, weapons, along with bios of characters in the world.
SVGames - Global Game Source - Offering d20 games and accessories worldwide. Cheap shipping and thousands of items. Managed by an award-winning team.
Weird War II - The Complimentary Website - Has variant rules, new equipment and vehicles and information for the PEGInc game Weird War II: Blood on the Rhine (and expansions).
Slashdot: Where Daemons and Dragons Collide - Feature story of the Open Gaming Project with reader feedback. (March 22, 2000)
Salon Technology: Dungeons & Dragons to go open-source - An interview with a gaming executive about an open gaming license for role-playing games. (March 10, 2000)
