A LITTLE PUZZLE ABOUT WHAT REMAINS
Mineral Memory.
A fleeting cell. A lasting stone.
Give each little echo the layers it needs to survive.
115 million years, held in a grain.Your field guide
1. Read each recipe left to right. A bath reaches every unshielded cell. If its next letter matches, it gains one layer. If it does not match, it loses one layer (never below zero).
2. Tap a cell to shield it. A shield makes that cell wait through the next bath. You have one or two shields per turn. Shields lift after each pour.
3. Seal them all before the bath budget runs out. A complete cell becomes stone and is immune to later baths. Hints show one exact shortest next move. Undo is unlimited. Earn a gold seal by finishing at par without hints.
Keys: 1–5 toggle shields · A / M / V pour · U undo · H hint · R reset. Native buttons also work with Tab and Enter.
Inspired by November 2026 research on heme traces in dinosaur bone. These mineral recipes and rules are invented for play; they do not model real fossil chemistry.
Each sealed cell keeps a little more of the past. Your collection stays on this device.