D20 System / OGL Product (D&D 3.5 Compatible)
Aereth Amethyst Arcanis: The World of Shattered Empires Aventyr Campaign Setting Blackmoor Castlemourn Cerulean Seas Contagion Corona Dark Sun Diomin Dragonlance Eldoria Freeport Gamma Terra Garweeze Wurld Gaslight Earth (Battlefield Press) Generic / Universal Golarion Iron Kingdoms Kingdoms of Kalamar Mars Masque of the Red Death Midgard Midnight Pinebox Planescape Ptolus Ravenloft Sahasra Scarred Lands Seven Avengers Talislanta The Black Monk The Diamond Throne The Dying Earth The Lost Lands Thieves' World Titan Violet Dawn Warcraft Wilderlands of High Fantasy
Action / Adventure Modern Science Fiction (Time / Dimension Travel) Fantasy (High Fantasy) Fantasy Generic / Universal Animal (Anthropomorphic) Science Fiction (Post Apocalypse) Fantasy (Science Fantasy) History (Ancient) Fantasy (Sword & Sorcery) Horror (Supernatural) Adult / Mature Horror History (Alternative) History (Victorian Era) Culture (Asian / Far Eastern) Fantasy (Arabian Nights) Occult (Psionics / Mentalism) History (Vikings) Steampunk
Attribute/Stat Based (STR, CON, PER, etc) Class Based (Pilot, Wizard, Scientist, etc) Dice (Primarily d20) Dice (Various) Grid-based (uses square terrain for move/combat) Level Based (Earn XP and level up) Race Based (Player Race/Species affects gameplay) Skill Based (buy or gain skills)
This group holds all of the d20 System products that are compatible with D&D 3.5 and any other d20 RPG of that era. There are other groups for 3rd and 4th edition d20 System products.
Products not bearing the official logo of Dungeons & Dragons from WotC should go in one of these "d20 System Products" groups rather than the official D&D boxes.