Found it yesterday. Been working this field a long time.
A shallow circular hollow sits in a dry field, roughly the width of a kitchen table but only a few inches deep. The soil at the rim is pushed outward in an even ring, with the center packed smooth. No tracks lead to it or away. Whatever made it left nothing behind.
This is a Nature-Science puzzle of easy-medium difficulty with one hidden answer. Players had up to 5 questions to ask the constrained voice before having to commit to an answer.
Nature-Science puzzles ask the player to identify something from the natural world or a scientific concept, often through the perceptions of a non-human voice or an observer who lacks the technical vocabulary.
Distribution across all production attempts.
Every 5Qs puzzle is built around a constrained voice. The voice knows the answer but can only communicate within a specific perspective — a doorman new to the city, a dog who only thinks in smell and crunch, an empty lot that has never been occupied before. The voice will not name the answer outright. The fun is figuring out what to ask so that the lens reveals enough for you to put a name on what the voice is describing.