| Ancient Worlds: Multicosm: Includes ancient Rome and Iceland campaign settings, new clases, feats, solo adventures, monsters, new rules, and product reviews. | |
| Chilling Tales Horror Roleplaying: A collection of resources and gaming materials for horror roleplaying in any campaign setting using the d20 System | |
| Creation's Edge: Creation's Edge is an on-line resource for D20 fantasy RPG settings. Offers a free section of monsters and magical items. | |
| creaturedb - the RPG monster database: Open, free, online database for rpg monsters, creatures and npcs. Accepts (and encourages) submissions for home brewed monsters / beasties. Authors/copyright holders receive full credit/ownership/copyright for their work. | |
| D20 Conversions: Conversions, Reviews, Forums, and Original material | |
| 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. | |
| 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. | |
| Fantasy gaming SRD: SRD for d20 roleplaying games in a fantasy setting. | |
| 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. | |
| Open Gaming World: A website that contains various features for online roleplaying, the discussion of open gaming, and downloads. | |
| 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. | |
| Resident Evil D20: A D20 website which converts the Resident Evil video game to the D20 system rules. | |
| RolePlayingMaster: A software utility suite for D20/D&D, incorporating character/NPC/monster generation, adventure building, and in-game combat/BattleMap manager. | |
| RPG United: d20 System: Lists and descriptions of products available for d20. | |
| 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&D & d20 roleplaying information and products to RPG fans. | |
| Salon Technology: Dungeons & Dragons to go open-source: An interview with a gaming executive about an open gaming license for role-playing games. | |
| Shadowrun D20 Conversion Site: A conversion site for the Shadowrun system by Wizkids to the D20 Format. | |
| Silven Crossroads: Silven Crossroads is a free RPG site "devoted to uniting the role-playing games fans of the world". It has sections for d20 gaming, CRPGs, modern RPGs, and a free monthly ezine--the Silven Trumpeter. | |
| Slashdot: Where Daemons and Dragons Collide: Feature story of the Open Gaming Project with reader feedback. | |
| 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. | |
| Tanaeum: Information on a number of different interlinked game worlds. | |
| The Boneyard: d20 conversions of creatures and rules from Advanced Dungeons and Dragons and Alternity. | |
| The d20 System: Official site of the game engine and the Open Gaming License. | |
| 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. | |
| The Open Gaming Exchange: News and directory of open gaming sites and products. | |
| Toober's Online Reference: A reference for roleplaying. A large database containing spells, feats, weapons and skills for the D20 system. | |
| Twin Rose Software: Contains the demo and update downloads of the Campaign Suite program for generating characters, maps, and campaigns. | |
| 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). |
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