Sites like marshallyin.com

A community database and progress tracker for the game IDOLM@STER Cinderella Girls Starlight Stage, with player profiles, maps and a wiki

A community-run site sharing custom content, mods, stories and archives for life-simming games such as The Sims 1 and 2

XtremePapers is a discussion forum where students and teachers share past exam papers, study help and general chat

A social community site for Love Live! fans to share adventures, posts and wiki entries about the franchise

Weasel Mods, a forum board for selected Baldur's Gate and Icewind Dale game mods and related news

School Idol Tomodachi is a fan-run resource website for players of the LoveLive! School Idol Festival mobile game, with card, idol and map databases

A community database and fan site for the BanG Dream! Girls Band Party game, covering characters, cards, and members' profiles

An open source unified communications platform project, Issabel, distributing a free PBX software suite and its downloads

Proko, an online drawing school with video courses on figure, gesture, and perspective drawing, plus drawing apps

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racetime.gg is a website for organising online races in video games and speedruns, with race categories such as Banjo-Kazooie and Metroid Fusion

Wolf3D.net is a community site for Wolfenstein 3D fans, offering news, mod downloads, game listings, guides and a Discord

Facer is a marketplace of watch faces for Apple Watch, Wear OS and Galaxy Watch, with creator profile pages

An Italian community site on the fediverso for tracking reading, writing book reviews and sharing lists, called BookWyrm.it

A fan-run database and community site for Revue Starlight, the anime and stage franchise, with news feeds and donator badges

adminForge is a German-language site of self-hosted open source service guides, Linux admin tutorials, news, an NTP time server and an Android app

World Map Builder is a web tool for designing overworld maps with secret exits and branching paths for Super Mario Maker 2 levels

Madrid Ruby User Group's meetup site listing monthly Ruby and Rails talks, past events, topics and members

Final Project, a paid service by Shivam Vatshayan supplying custom computer science final-year project work and internship placements

Logic Masters India, a website on puzzle and Sudoku competitions, including the annual Puzzle Ramayan contest and a puzzle publishing expo

Bowl.hu, a Hungarian forum and news site about American football, covering NFL and NCAA results, discussions and a glossary

OurBigBook.com is a wiki-style platform of user-written articles, topics and discussions on subjects like science, mathematics and philosophy

A catalogue of mods for the Farming Simulator 25 and FS22 farming games, offered as downloads from the KingMods site

Faneo is a Spanish-language social network for publishing and reading webcomics, with user comics such as La Monja Sangrienta

Gan Jing World, a U.S. streaming platform of clean entertainment, news, culture and Falun Dafa-related video, run by a company behind it

A Scottish collective's blog on anti-racist education, covering curriculum reform, race, school policing and museums, with an about page

A personal homelab site offering free hosted open-source services such as Matrix and IRC bridges, run by an individual hobbyist called pixie

A resource website for team-teaching English lessons between Japanese teachers and foreign assistant teachers in Japan, with shared lesson materials

Trade Stories is a Portuguese marketplace for buying and selling used books, with a blog on safe transactions and shipping