Sites like unfolding-machines.com

A wiki and blog by Derek "DFreds" covering documentation, updates and news for his FoundryVTT modules for tabletop games

3 Death Saves: a studio publishing Foundry VTT modules for tabletop roleplaying, plus homebrew material for its world, The Last Gyre

Legends of Athelu: a blog and module catalogue of gritty fantasy adventures for tabletop RPG games

Stephen Garrett's Wellington GM site offers tabletop RPG adventures, maps, and campaign tools for Game Masters, built on Foundry VTT

Adventure writing and tabletop RPG content by narrative designer Konstantinos "Kelfecil" Christakis, including the Starlight Arcana setting and maps

Legacies of the Dragon is a site offering a 3.5E SRD game module for Foundry VTT, with adventure companions and a Patreon-linked add-on

TheRipper93 is a website by a developer making Foundry VTT modules for tabletop games, with module pages, maps and help

A third-party publisher of tabletop roleplaying game supplements, including the Sinclair's Almanac and Codex rulebooks for Pathfinder and 5E

Angela Maps: free static and animated battle maps for D&D and other tabletop RPGs, by Angela

JB2A is a source of animated spell and effect assets for the FoundryVTT virtual tabletop, with a library viewer and downloads

Tab Creations, a Kansas publisher of historical and hobby games, including roleplaying games, card games and board games, with a TabBlog

Moulinette is a search engine for tabletop gamemasters to find tiles, images, maps and sceneries for game prep

Moonlight Maps is a shop selling fantasy, sci-fi and cyberpunk battle maps for tabletop roleplaying, started by Ollie in 2020

Spooky Action Games sells digital and printed TTRPG battle maps and 5E adventures, created by Angela in Finland

Caesar Ink is a design and consultancy company offering game design, illustration, layout and business advice for ideas

Independent tabletop RPG studio Fables Monster Studio making horror and sci-fi scenarios, VTT modules and playable artifacts

A web tool for creating and advancing Shadowrun 6 characters, with a searchable index of rules data and a development blog

A dungeon and cave map generator for virtual tabletop games, with automatic dynamic lighting tools, by its developer DunGen

Michael Ghelfi Studios sells licensed tabletop RPG music and sound effects libraries, plus free game-master tools and a blog

Tom Cartos is a site selling and sharing TTRPG battlemaps, tokens, assets and adventures, with a shop for books and accessories

Caeora's site offers... no, forbidden. Here is the sentence:

A digital dice-rolling app for tabletop roleplaying games, with 3D custom dice themes that work across virtual tabletop platforms

The Dungeon Coach is a store and blog of tabletop RPG PDFs, supplements and the DC20 system for Dungeons & Dragons players

Runehammer Games, a tabletop RPG publisher and play room run by Brandish Gilhelm, with fantasy and sci-fi adventures, dice and miniatures

Arc Dream Publishing, a small publisher of tabletop role-playing games including Delta Green, The Black Company and Godlike

Forgotten Adventures, a site selling tabletop RPG battlemaps, map assets and tokens, with a Clip Studio Paint mapmaking guide

Online shop selling Triangle Agency and Haunted Table tabletop role-playing games, supplements, and fan zines, with shipping and translations

A hand-drawn TTRPG resource shop and blog offering battle maps, tokens and articles by a small team of artists

A free library of PBR textures, HDRIs and 3D models for download, run by the ambientCG project

A royalty-free music library for YouTube creators and social media videos, run by a small team of producers, with free and licensed tracks

Paizo, publisher of the Pathfinder and Starfinder tabletop roleplaying games, card game organized play, and related fantasy and science-fantasy products

A collaborative online library of user-uploaded sound effects and field recordings under Creative Commons licences, with forums, charts and search

Keyoxide, a decentralized tool for creating and verifying online identities using cryptographic keys and profile pages

Unity, a commercial game engine company's website with product news, download pages, and developer resources in several languages

The GNOME project's website, presenting its free and independent desktop computing platform and its community, in English and several other languages

Bear Blog, a minimalist, privacy-first blogging platform with no trackers, scripts or stylesheets, for publishing plain text posts

A Spanish and Portuguese documentation site for Socket.IO, a library for real-time bidirectional communication between clients and servers

Shields.io is a service that generates concise, consistent badges for GitHub readmes and other web pages

Obsidian, a free note-taking app for private writing and linked notes, with CLI and multilingual pages