Manuskript
Scrivener
yWriter
StoryMill
bibisco
oStorybook
Novelize
Novlr
Nuclino
Notion
Confluence
Slab
Slite
DokuWiki
MediaWiki
Jama Connect
Manuskript NuclinoNuclino might be a bit more popular than Manuskript. We know about 1 link to it since March 2021 and only 1 link to Manuskript. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Looks like you want something that integrates well with your workflow. The closest to your description seems to be Manuskript although I haven't used it. But your requirement of "keeping notes and frameworks and linking back and forth" should be possible by stitching together existing Linux tools using a syntax like markdown or asciidoc so that you can use any text editor to write your story and use external tools... Source: over 2 years ago
Nuclino - storing concept art, story design info, etc. This is similar to Google Docs, but it can be organized so much more efficiently for game design. Source: about 2 years ago
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
yWriter - Free writing software designed by the author of the Hal Spacejock and Hal Junior series. yWriter6 helps you write a book by organising chapters, scenes, characters and locations in an easy-to-use interface.
Confluence - Confluence is content collaboration software that changes how modern teams work
StoryMill - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless and many more. Based in MN.
Slab - Slab is a knowledge hub for the modern workplace. We help teams unlock their full potential through shared learning and documentation. Slab features a beautiful editor, blazing fast search, and dozens of integrations like Slack, GitHub, and G Suite.