Fandom is a wiki hosting service that hosts wikis mainly on topics like video games, TV shows, and movies. If you’ve ever looked up a show or game, you’ll probably have seen a Fandom wiki (formerly Wikia) at the top of the search results. It was founded by Wikipedia co-founder Jimmy Wales and Angela Beesley but they sold it to a private equity firm called TPG Inc.
Fandom was always a for-profit thing but with it being in the hands of private equity, the profit part has intensified over the years with wiki owners leaving the service due to intrusive ads and poor UX. Because of this, I have tried to remove as many Fandom links from the site and replaced them with alternative fan wikis.
This list is a non-exhaustive of non-Fandom game wikis for popular series. You’re welcome to leave comments for inclusion but I’ll fill this in as and when with the most popular series. Also please note that Fandom wikis may have better information and they’ll be unavoidable so I’m not suggesting to never use them ever again but if you have the choice, use an alternative. Some games don’t have an alternative either.