Ah, I was wondering if we could do multiple tags somehow but I don't know much about Flarum.
I know this is the Ambrosia Garden, but it's inevitable that people will want to discuss Cosmic Frontier as well, here. With it being compatible with Nova data files and plug-ins, people are going to be using Cosmic Frontier to keep EV Nova alive for years to come, and plug-ins developed are basically being developed for both engines now. With CoFro's new features, there will be plug-ins updated or made just for that game, too. So a Cosmic Frontier tag would be a nice addition even though Ambrosia's got nothing to do with it.
I'd like to see an Art tag, too. We've got some talented 3D modelers in our midsts, and while that's part of plug-in making, it's also kind of its own subcategory. Plus, there are people making art with these games as a subject, but not necessarily for putting in-game. The Art tag could encompass everything from fanfic to crayon drawings of spaceships, to actual plug-in assets.
It may also be helpful to have a secondary tag for Guides, where the purpose isn't discussion necessarily, but for people to provide useful information to help others solve problems. We probably don't want to be pinning a lot of threads there, but if people can click on the Guides category and see all the Guides people have made over the years, that would be useful.