About Water Sort
Water Sort is the liquid logic puzzle that turns colour into a resource: a row of tubes, each holding four layers of liquid, and one rule — you may only pour onto the same colour or into an empty tube. The whole matching top run pours at once, a completed tube seals itself with a green glow, and the win is a screen where every colour lives in its own vessel. The interactions are all tap-first: lift a tube, pour, undo — nothing hides behind menus.
The ramp is gentle then ruthless: level one sorts three colours with two spare tubes, and each level adds a colour until eight share the screen — with only one spare tube from level ten. What separates this edition from the app-store pile is honesty at the generator: every deal is checked by a built-in search solver before it reaches you, and anything the solver cannot crack is re-dealt, so an impossible level is not a thing that can happen here. Tubes reflow to fit the screen — wrapping to a second row when a deal has too many for one — and every tube stays wide enough to tap reliably.
Progress has real texture: the move counter rates your solution with stars against a par of three pours per colour, your best move count per level is saved, and the game remembers which level you reached so a campaign continues across visits. Undo is always one tap away and never costs anything but pride, and if you genuinely paint yourself into a corner, the interface tells you when no legal pour remains instead of leaving you to stare.
The classic mistakes are cracking open a second colour too early and spending your last empty tube on a move that frees nothing. Played properly it is a genuine planning exercise about which colour to free first — a fidget toy on the surface, a small constraint-satisfaction course underneath. It plays with taps on any screen, or entirely from the keyboard with the number keys, with no ads and no account anywhere in the loop. Keyboard players can go faster than tappers here: the number keys select tubes directly, which turns long consolidation sequences into a few efficient presses. And because a tube holds exactly four layers, the fourth unit of any colour is always either the seal on a finished tube or the start of a problem — which is why counting to four quietly becomes a habit.
How to Play Water Sort
- 1
Press Start — the first deal is already poured and shuffled.
- 2
Tap a tube to lift it, then tap a destination to pour.
- 3
A pour needs a matching top colour or a completely empty tube.
- 4
The whole top run of matching colour pours at once, not one layer.
- 5
A tube of four matching layers seals green and is finished.
- 6
Sort every colour to clear the level; fewer pours earns more stars.
Controls
| Keys | Action |
|---|---|
| Tap a tube, then another | Select a source and pour |
| Tap the selected tube again | Deselect it |
| Number keys 1–9 / 0 | Select a tube directly |
| Arrows + Enter | Cycle the selection and pour |
| U / Z / R | Undo a pour / restart the level |
Tips & Strategy
TIP 1
Empty tubes are the currency of the game: spend one to stage a colour, then work to earn it back before you need it again.
TIP 2
Pour onto the tallest matching run first — consolidating runs frees tubes faster than moving single layers around.
TIP 3
Before uncovering a blocked colour, check that its destination actually exists, or you will just shuffle the prison.
TIP 4
When a level goes wrong, undo to the last clean state instead of improvising — sorting puzzles punish stubbornness, not caution.
TIP 5
Protect the green tubes: a sealed tube is solved, and everything you do afterwards should never need to open it again.
Frequently Asked Questions
Is every generated level truly solvable?
Yes. Each deal is verified by a built-in search solver before play begins, and the generator re-rolls anything it cannot solve.
Can I pour onto a different colour?
No — a pour needs the destination’s top layer to match the source’s colour, or the destination to be completely empty.
What do the stars mean?
Finish at or under three pours per colour for three stars, within one-and-a-half times that for two, and anything beyond earns one.
Does my campaign progress survive closing the tab?
Yes — the level you reached and your best move count for each solved level are stored in this browser, so you continue where you left off.
Ready to Play Water Sort?
Free, instant and right on this page — no download, no signup. The cabinet is already warm.
More Games You’ll Enjoy
WASM2048 Game
Merge numbered tiles, chase the 2048 tile, keep going.
Puzzle
Minesweeper Online
Read the numbers, flag the bombs, clear the field.
Puzzle
Slide Puzzle
The classic 15-puzzle — restore order in the fewest moves.
Puzzle
Sudoku
Three difficulties, every puzzle with exactly one solution.
PuzzleExplore more puzzle games in the dedicated collection, or browse the full games catalog — from classic and puzzle to fast arcade and action titles. Every page plays instantly on desktop and mobile.