A character’s Perception measures what they are able to see, hear, or otherwise sense (unlike Investigation, Perception doesn’t involve approaching, searching, or handling an object of study.) The most commonly used ability score is Wisdom. Examples include the following activities:
Perception, both Active and Passive, is frequently used to oppose another character or monster's Sleight of Hand or Stealth skill Tests.
| DC | Activity |
| 10 | Spot a hunter’s trap before bumbling into it; notice signs of a recent campsite |
| 15 | Notice a well-concealed pressure plate; spot campfire smoke from a long distance |
| 20 | Detect the rumbling of a rockslide or avalanche before it’s too late; hear flowing water from a long distance |