Knowledge (Apath)

Unofficial rules compendium

Subjects

Arcana

Ancient mysteries, arcane classes, arcane symbols, constructs (except automatons & robots), dragons, magic traditions, magical beasts; Although automatons & robots are constructs, Knowledge (arcana) cannot be used to identify automatons & robots.

Dungeoneering

Aberrations, caverns, oozes, psychic classes, spelunking, far realm.

This has become the skill for psychic powers.

Engineering

Architecture, aqueducts, bridges, buildings, fortifications, traps. This is the most important skill with regard to technological subjects. It can be used to identify the abilities and weaknesses of automatons & robots.

Knowledge (engineering) is used to identify and understand unknown technological objects in a similar manner to how Spellcraft is used to identify the properties of a magic item. The DC to correctly identify and understand an unknown technological object is equal to the object's Craft DC. An object with a Craft DC of 15 or less can be automatically identified and understood by someone trained in Knowledge (engineering) who also has the Technologist feat.

Geography

Astronomy, climate, geometry, lands, navigation, nations, terrain.

History

Haunts, legends, migrations, past events, wars.

Adding haunts to history to give it a bit more omph.

Local

Cultures, customs, humanoids, inhabitants, skilled classes, subcultures.

This has been changed to be the general knowledge for humanoids of all kinds.

Nature

Animals, fey, monstrous humanoids, plants, seasons and cycles, vermin, weather, wild classes.

Nobility

Customs, heraldry, high-level characters, laws, lineages, martial classes, officials, personalities, royalty, traditions.

This has taken over some aspects of knowledge local, making it the knowledge for society and government.

Planes

Astral Plane, Ethereal Plane, Inner Planes, Outer Planes, outsiders, planar magic.

Religion

Divine classes, gods and goddesses, ecclesiastic tradition, holy symbols, mythic history, religious law and tradition, undead.

Table: Classes By Knowledge Area

Arcane (Arcana) Alchemist Arcanist Bloodrager Magus Sorcerer Spellsword Summoner Witch Wizard

Divine (Religion) Cleric Inquisitor Monk Oracle Paladin Sacerdote Warpriest

Martial (Nobility) Brawler Cavalier Doom Warrior Fencer Fighter Gunslinger Slayer Soldier Swashbuckler

Psychic (Dungeoneering) Kineticist Medium Mesmerist Occultist Psychic Spiritualist

Skilled (Local) Bard Investigator Kingpin Quartermaster Rogue Vigilante

Wild (Nature) Animist Barbarian Druid Hunter Ranger Shaman Skald

Referencing

Using a reference work allows you to retry a Knowledge skill check as a full-round action that triggers attacks of opportunity.

Research

Using a library you can cross-reference many sources and gain a more complete picture of an issue than any single book could give. With 20 minutes of work you can make a Knowledge check with a +10 bonus, and you can retry this check. It takes a full day of research to take 20 this way. The library must contain books on relevant topics. Libraries can also contain information that simply is not available otherwise.

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