This thread was made after the initial batch of adventures got to the island, as such back then we just asked Clem whether or not it was okay to use a 3 party feat/class. Those are not posted, so I figured that I would just make a post saying the stuff that has already been approved by either Clem or a GM back then. Path of War (POW). Path of war is a expansion that was released a while back, it's main features are maneuvers and stances (Similar to spells in a way). This was approved before I started playing, sadly I didn't know about it back then so I didn't take a POW class. All of Path of War is allowed so feats and classes are fair game. As you get to higher levels POW material is generally stronger than normal martial classes. I would recommend taking some feats in it at higher levels for at least some maneuvers. Also a lot of official POW stuff can be found more easily by googling, so try that. Martial Artist is also an allowed class. It is a class that doesn't wear armor but instead get's scaling AC in the form a third party feat. (Note that the feat itself has not yet been approved.) They specialize in one weapon. When using that weapon Martial Artists get bonuses in attacks and damage but when using literally any other weapon they are much weaker. Check out the class. (NOTE: This class is super top heavy so taking 1-3 levels in it can be overpowered since the AC scales regardless of your level in martial artist. Their biggest weakness is a lack of armor but if you multi-class that weakness is gone. As such I would not recommend that.) Unchained Classes are not actually third party, but Clem has said they are all allowed. One feature that no one is using but Clem said yes to (Don't remember when but it was a while back) is Combat Stamina . Combat stamina is cool. It is good and offers a good amount of fun combat tricks that are not overpowered. Note that if you are an unchained fighter you actually get this for free! I seem to remember that this was already in the thread somewhere but I can't find it so I am going to just quickly put it here. Psionics is allowed. Pcionics classes are generally a little stronger than normal classes, at least when it comes to martial classes. They use their own system. So yeah, these are things that were allowed at some point. There are characters using all of these features already. Note that I am not a GM so if something here is wrong feel free to PM me or delete the post if it is redundant.