Like Facepunch before us, this is our attempt at a wiki system that serves exactly the purposes we need it for.
This wiki was built from the ground up (aside from [[parsedown]]), and is open source on GitHub.
You can make contributions to this wiki by forking and submitting pull requests from the content repository on GitHub.
This wiki uses Markdown for formatting, and specifically targets *[GFM]: Github Flavoured Markdown. However, it is extended by Markdown-Extra, and other plugins. You can view the full formatting guide for this wiki here.