General Skills
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Recall Knowledge [Untrained]

Source Core Rulebook pg. 238 1.1
To remember useful information on a topic, you can attempt to Recall Knowledge. You might know basic information about something without needing to attempt a check, but Recall Knowledge requires you to stop and think for a moment so you can recollect more specific facts and apply them. You might even need to spend time investigating first. For instance, to use Medicine to learn the cause of death, you might need to conduct a forensic examination before attempting to Recall Knowledge.

Skill Uses

[Arcana] Recall Knowledge about arcane theories; magic traditions; creatures of arcane significance (like dragons and beasts); and the Elemental, Astral, and Shadow Planes.
[Crafting] Recall Knowledge about alchemical reactions, the value of items, engineering, unusual materials, and alchemical or mechanical creatures. The GM determines which creatures this applies to, but it usually includes constructs.
[Lore] Recall Knowledge about the subject of your Lore skill’s subcategory.
[Medicine] Recall Knowledge about diseases, injuries, poisons, and other ailments. You can use this to perform forensic examinations if you spend 10 minutes (or more, as determined by the GM) checking for evidence such as wound patterns. This is most useful when determining how a body was injured or killed.
[Nature] Recall Knowledge about fauna, flora, geography, weather, the environment, creatures of natural origin (like animals, beasts, fey, and plants), the First World, the Material Plane, and the Elemental Planes.
[Occultism] Recall Knowledge about ancient mysteries; obscure philosophies; creatures of occult significance (like aberrations, spirits, and oozes); and the Positive Energy, Negative Energy, Shadow, Astral, and Ethereal Planes.
[Religion] Recall Knowledge about divine agents, the finer points of theology, obscure myths regarding a faith, and creatures of religious significance (like celestials, fiends, and undead), the Outer Sphere, and the Positive and Negative Energy Planes.
[Society] Recall Knowledge about local history, important personalities, legal institutions, societal structure, and humanoid cultures. The GM might allow Society to apply to other creatures that are major elements of society in your region, such as the draconic nobility in a kingdom of humans ruled by dragons.

Recall Knowledge Single Action

ConcentrateSecret
Source Core Rulebook pg. 239 1.1
You attempt a skill check to try to remember a bit of knowledge regarding a topic related to that skill. The GM determines the DCs for such checks and which skills apply.
Critical Success You recall the knowledge accurately and gain additional information or context.
Success You recall the knowledge accurately or gain a useful clue about your current situation.
Critical Failure You recall incorrect information or gain an erroneous or misleading clue.

The following skills can be used to Recall Knowledge, getting information about the listed topics. In some cases, you can get the GM's permission to use a different but related skill, usually against a higher DC than normal. Some topics might appear on multiple lists, but the skills could give different information. For example, Arcana might tell you about the magical defenses of a golem, whereas Crafting could tell you about its sturdy resistance to physical attacks.
  • Arcana: Arcane theories, magical traditions, creatures of arcane significance, and arcane planes.
  • Crafting: Alchemical reactions and creatures, item value, engineering, unusual materials, and constructs.
  • Lore: The subject of the Lore skill's subcategory.
  • Medicine: Diseases, poisons, wounds, and forensics.
  • Nature: The environment, flora, geography, weather, creatures of natural origin, and natural planes.
  • Occultism: Ancient mysteries, obscure philosophy, creatures of occult significance, and esoteric planes.
  • Religion: Divine agents, divine planes, theology, obscure myths, and creatures of religious significance.
  • Society: Local history, key personalities, legal institutions, societal structure, and humanoid culture.
The GM might allow checks to Recall Knowledge using other skills. For example, you might assess the skill of an acrobat using Acrobatics. If you're using a physical skill (like in this example), the GM will most likely have you use a mental ability score—typically Intelligence—instead of the skill's normal physical ability score.

Sample Recall Knowledge Tasks

These examples use Society or Religion.
Untrained name of a ruler, key noble, or major deity
Trained line of succession for a major noble family, core doctrines of a major deity
Expert genealogy of a minor noble, teachings of an ancient priest
Master hierarchy of a genie noble court, major extraplanar temples of a deity
Legendary existence of a long-lost noble heir, secret doctrines of a religion