From the publisher’s rulebook
Who goes first in Petrichor?
Mighty Boards English rulebook, 2019 printing

The person most recently caught in the rain starts, or select a first player by any other method.
Rule details
Give that player the First Player marker.
During setup, place clouds in reverse play order beginning with the player to the starter’s right.
Source & edition
- Petrichor: English rulebookMighty Boards · Setup, steps 5 and 12 · Checked 2026-09-24Printed page references: 4
Image: © Mighty Boards / Daniela Attard · Mighty Boards
If your rules call for a random choice, use the player picker.
If there’s a tie
The rulebook doesn’t say. If you need a tie-break, pick a player at random.
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