Cairn Sort

Lift. Stack. Sort. Cairn Sort is a calm, moody color-sort puzzle set on a Pacific Northwest river at night.

Rune-carved river stones sit jumbled on wooden cairns. Tap a cairn to lift its top stones, tap another to set them down on an empty cairn or on the same rune. Finish when every cairn holds one rune - and watch its rune rise and glow.

180 LEVELS ACROSS 9 WORLDS
Every world adds a new twist:
- Mistwater - learn the stones
- Cedar Run - only one spare cairn
- Ember Ford - taller cairns of five
- Rime Fjord - dark mystery runes under the aurora
- Glacier Narrows - frozen cairns that thaw as you finish others
- Basalt Steps - the tallest cairns: six stones
- Ghostwood - mystery runes with one spare cairn
- Thunder Gorge - ice on cairns of five, in a lightning storm
- Bifrost Reach - every trick the river knows
Each world ends in a Grand Cairn that opens the way on.

THREE STARS ON EVERY LEVEL
Finish, finish under the move goal, then match par with no undo. 540 stars to earn, and stars open new worlds.

A NEW PUZZLE EVERY DAY
The Daily Cairn brings a fresh river every day. Keep your streak and earn free hints.

PLAY YOUR WAY
- Undo, hints and a spare cairn when you are stuck
- Every level is guaranteed solvable
- Each color carries its own rune, so it is colorblind friendly
- Your puzzle is saved mid-level - pick up where you left off
- Works offline
- No timers, no lives, no pressure

Optional one-time Remove Ads purchase removes interstitial ads and makes every extra free.

From Pacific Northwest Mobile Games.