Gem Sort
Gem Sort is the sorting puzzle that quietly eats an evening: flasks full of mixed-up gems, two empty ones, and a single rule — a gem only lands on its own colour. Untangle the mess one pour at a time.
The sort puzzle is the quiet superstar of modern casual gaming — the ball sort and water sort family has been downloaded hundreds of millions of times, and it never needed a tutorial. You see mixed colours in glass tubes, and something in your brain simply refuses to leave them like that.
Gem Sort keeps the beloved rules intact: each flask holds four gems, a gem can move only onto a matching colour or into an empty flask, and matching gems on top move together. Fill a flask with four of a kind and it locks in with a satisfying flash. Sort every colour and the level is yours.
The trap, as every sort-puzzle veteran knows, is the empty flask. Spend your free space carelessly and you will find yourself staring at a board where nothing moves. That is what the undo button is for — and unlike many clones, it is free and unlimited, because the puzzle should be about thinking, not about rationing mistakes.
Every level here is generated and then verified by a solver before you ever see it, so there are no dead deals — if you are stuck, the way out exists. Levels grow from a gentle three colours to a dense eight, and your progress saves automatically between visits.
How to play Gem Sort
One rule and two empty flasks — that is the whole game:
- Tap a flask to lift its top gem (matching gems on top travel together).
- Tap another flask to pour — gems land only on the same colour or in an empty flask.
- Fill a flask with four gems of one colour to lock it in.
- Sort every colour into its own flask to clear the level.
- Stuck? Undo is unlimited, and restart reshuffles nothing — it replays the same solvable deal.
Tips for Gem Sort
- Guard your empty flasks — they are the only working space you have, so spend them on purpose.
- Plan two pours ahead: the best move is often the one that frees a colour underneath.
- Dig out the colours buried deepest first, while you still have room to manoeuvre.
- Avoid stacking a colour on top of a single stray gem you will need to move again.
- A free undo is a thinking tool: try a line, read the result, roll it back.
Who made Gem Sort?
Gem Sort was built for crokocat in 2026 — a polished take on the classic ball sort puzzle with glass flasks, faceted gems and solver-verified levels, tuned for mouse and touch.
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About this game
- Controls
- Tap a flask to pick up its top gems, then tap another flask to pour. Gems land only on the same colour or in an empty flask. Undo and restart are always available.
- Supported devices
- desktop, phone, tablet
- Developer
- crokocat
- Genre
- Puzzle
- Release date
- July 2026
- Latest update
- July 2026
Related categories
Frequently asked questions
Is Gem Sort free to play?
Yes. Gem Sort is free on crokocat with no download and no sign-up — it runs entirely in your browser.
Are the levels always solvable?
Yes. Every deal is checked by a solver before it reaches you, so there are no dead levels — if you are stuck, undo a few moves and look again.
How is this different from ball sort or water sort?
The rules are the same beloved mechanic — four per flask, match colours, two empties — dressed in gems, with unlimited free undo and saved progress.
How many levels are there?
Levels are generated endlessly and grow from three colours to eight. Your level number is saved automatically, so you can always pick up where you left off.