Hi, you might be looking to Making a Character in Zarthuga
There is an Intro to the Setting.
Or you are trying to find the Virtual Tabletop at www.play.zarthuga.com
Take a look at the World Map.
Or the main timeline of World events
Or you can find notes about the current campaigns running under Running campaigns
Check out the House Rules.
If you want to start looking for things in the setting, use the search-bar, or start browsing from the Setting categories.