Prestige classes from the Pathfinder Core Rulebook, Advanced Player’s Guide, and Psionics Unleashed are all permissible in the game. Other prestige classes, be they from D&D 3.5 Material or other Pathfinder supplements, may be approved at the DM’s discretion.
Faction Prestige Classes
When your eyes are opened to the vistas of otherplanar strangeness, deities on their own turf, and mind-bending philosophies, it’s hard to remain the same as you were before. It’s a lot to absorb. Many of those who live beyond the Material Plane feel they have a wider view of the way things actually work. To this end, various organizations, groups, and factions exist that teach ways of coping with the mind-boggling immensity of the multiverse.
Some groups are so enamoured of their on particular philosophies that they teach their members special kinds of prestigious abilities. These philosophical teachings and abilities can take a character in an entirely different direction from what she originally followed. Of course, only a fraction of those who join the factions take a prestige class associated with it.
Any character that belongs to a faction may treat a single prestige class associated with their faction as a second favoured class.
Planar Handbook Classes
All prestige classes on this page are 3.5 material, and I do not feel inclined to convert them to Pathfinder if they will not see use. If you are interested in taking any of these prestige classes and believe they are underpowered for Pathfinder, suggest a conversion and we’ll talk about it.