Information on how knowledge checks, skill checks & specific skills are handled outside of the base rules.
Rather than the basic pathfinder traits, characters in ordrun have a skill they receive for free based on their social standing. This represents what their childhood education upbringing would have included.
Some classes have additional restrictions based on cultural lines. No order of Paladins has yet been founded in Ordrun but instead a more zealous order of Crusaders was created.
When a player attracts followers they may use them to undergo missions in their stead. The rules for that are outlined here.
Occasional a player will brush with something that goes beyond normal Fear or Horror, they may, if they turn over enough stones, find something that drives them over the edge into true madness.