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d20Master — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Roleplaying Games →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
adventuremaster.org ↗	66 match 1 shared topics	Adventure Master SRD	en	roleplaying-games WordPress	robots llmsaihumans	emailphone	none
roguegamemasters.com ↗	66 match 1 shared topics	Rogue Game Masters - Get Started	en	roleplaying-games WordPress WooCommerce	robotsllmsaihumans	emailphone	none
chroniclerpg.ai ↗	65 match 1 shared topics	Chronicle RPG — AI-Powered Campaign Manager for Players & Game Masters	en	roleplaying-games Spree Commerce	robotsllmsaihumans	emailphone	none
2crazycasters.com ↗	65 match 1 shared topics	2 CRAZY CASTERS - Home	en	roleplaying-games Weebly	robotsllmsaihumans	emailphone	none
chaseyourquest.com ↗	64 match 1 shared topics	Chase Your Quest \| Dungeon Master for Hire \| Seattle, WA, USA	en	roleplaying-games Wix	robots llmsaihumans	emailphone	none
trailsweaver.com ↗	64 match 1 shared topics	Trails Weaver. Effortless TTRPG Prep for Game Masters	en	roleplaying-games	robotsllmsaihumans	emailphone	none
mimicdm.com ↗	64 match 1 shared topics	mimicdm — AI Dungeon Master for Voice-First Multiplayer D&D	en	roleplaying-games	robotsllmsaihumans	emailphone	none
3spellcastersandadwarf.com ↗	64 match 1 shared topics	3 Spellcasters and a Dwarf - Home	en	roleplaying-games Weebly	robotsllmsaihumans	emailphone	none
herotrack.app ↗	64 match 1 shared topics	HeroTrack - Combat tracker for faster initiative in 5e and more	en	roleplaying-games	robotsllmsaihumans	emailphone	none
abyssalnarratives.com ↗	64 match 1 shared topics	Abyssal Narratives - Dark Fantasy & Horror D&D Dungeon Master	en	roleplaying-games	robotsllmsaihumans	emailphone	none
trappedratgaming.com ↗	64 match 1 shared topics	Dungeon Master Hub: DnD 5e Dungeon Master Services \| QuestMaster Hub	en	roleplaying-games	robots llmsaihumans	emailphone	none
d20mud.com ↗	64 match 1 shared topics	d20MUD Network	en	roleplaying-games	robotsllmsaihumans	emailphone	none
rolekeeper.app ↗	64 match 1 shared topics	Role Keeper — TTRPG Campaign Notes for Your Whole Party	en	roleplaying-games	robotsllmsaihumans	emailphone	none
adventurecodex.app ↗	64 match 1 shared topics	Adventure Codex — Tabletop RPG companion	en	roleplaying-games	robotsllmsaihumans	emailphone	none
roleforge.ai ↗	64 match 1 shared topics	RoleForge — AI Game Master RPG \| Hand-Drawn Maps, Real Dice, Living Worlds	en	roleplaying-games	robots llmsaihumans	emailphone	none
baccusparties.com ↗	63 match 1 shared topics	Baccus Parties Murder Mysteries	en	roleplaying-games HubSpot	robotsllmsaihumans	emailphone	none
5e-creature-codex.org ↗	63 match 1 shared topics	5e Creature Codex - Free D&D Monster Reference & Stat Blocks	en	roleplaying-games Reaction Commerce	robotsllmsaihumans	emailphone	none
chaoticneutraldm.com ↗	63 match 1 shared topics	Chaotic Neutral Dungeon Mastery – Keeping All Your Options On The Table	en	roleplaying-games WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.