Below is a list of languages particular to the world and where they are predominantly spoken, in addition to those found in the Player’s Handbook.
Also, a houserule on languages: at character creation, a player may select a number of bonus languages equal to the intelligence modifier of his or her character, on top of any languages granted by backgrounds.
Languages of Akova
Akandian (Akandi Empire and surrounding areas)
Balta (Kingdom of Baltin and surrounding areas}
Khalidi (Khalid and surrounding areas)
Kotanese (Kotan Republics)
Nathian (Astora and The Umberton Confederacy)