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Chapter 9: Playing the Game / General Rules / Perception / Special Senses


Source Core Rulebook pg. 465 3.0
Tremorsense allows a creature to feel the vibrations through a solid surface caused by movement. It is usually an imprecise sense with a limited range (listed in the ability). Tremorsense functions only if the detecting creature is on the same surface as the subject, and only if the subject is moving along (or burrowing through) the surface.