Reference

"The index is the only part anybody finishes." — Archivist Vel Torrin

These 2 pages list everything. They are for looking something up when you already know roughly what you want. If you are learning a system for the first time, start from the section that covers it instead.

Commands: every command, grouped by system, with a search box
Settings: every setting, its default and what it does

Commands and settings that exist only so the in-game menus can talk to the server are left out.