Actually, yes.
The Orbus Free Press is a pretty helpful resource for a lot of stuff. It’s in many ways still in progress, but there’s a ton of information there: http://orbusfreepress.org/index.php/Main_Page
Edit: on there, you can find a lot of information about general game principles, classes, npcs, etc., along with a Bestiary that has images and general locations for the various enemies of the game
Edit2: there are also a lot of other resources mentioned in the Community Resources post: Community Resources