Water Route is a free online water-flow puzzle about digging, not steering. A tap drips into a grid of soil, rock and open air, and a plant waits at the bottom. Water only ever falls, slides off a ledge or spreads along a floor until it finds a way down, so the one thing you control is which soil cells you remove. Soil digs; rock does not. Each level allows exactly one dig more than the number it needs, which is the whole difficulty dial: a hole in the wrong pocket costs the star rather than the run, and the level cannot be brute-forced by clearing the grid. Ledges are mostly stone with a few diggable pockets, and on the second level two of the three pockets in a shelf sit directly over a drain, so the read is which gap leads down rather than whether you can make one. The tap keeps running, so the level asks for a count of drops delivered rather than for a ration spent perfectly — which means studying the flow before you commit costs you nothing. Four levels, par on every one, and every level proved solvable by searching the same water simulation you play. No download, no account.
How to play Water Route
- A tap at the top of the grid drips water continuously, one drop at a time, and a plant sits at the bottom.
- Tap or click a brown soil cell to dig it out. It becomes open air and the water can pass through.
- Grey rock cannot be dug. It is there to decide where a channel can go.
- Water only falls, slides diagonally off an edge, or spreads sideways along a floor looking for a way down.
- Each cell holds one drop, so water pools: a filled row is what makes the next drop stop on top of it.
- The readout shows the digs you have left and the level par. Par is the fewest digs the level can be done in.
- You always get exactly one dig more than par, so a single wrong pocket is survivable.
- A red drain swallows any drop that reaches it, and that water is gone for good.
- The tap keeps running, so what the level asks for is a count: get eight drops to the plant.
- Three stars is watering it, doing it in par, and losing nothing to a drain.
Tips
- Watch where the water settles before you dig. The level will not end while you still have a dig left, and the pool that builds up goes through the hole all at once.
- Look at what is directly under a pocket before you open it. A hole above a drain is a hole that throws the water away.
- Water spreads along a floor in both directions before it rests, so a plant slightly off to the side is still reachable — it does not need a hole straight above it.
- A dig into soil the water never touches does nothing at all. If a pocket is not wet, it is not your problem yet.
- Rock is information. The side of a shelf that is stone all the way to the wall is the side the water cannot leave, so look at the other one.
- Count the ledges between the tap and the plant. That count is usually the par, because each one needs exactly one hole.
- Par is worth a star on its own, so if you have already spent the spare dig, finishing the level still leaves two.
- On the levels with two pockets in a shelf, the one nearer the plant is not automatically the right one — check what is below it first.
FAQ
Is Water Route free to play?
Yes. It runs in the browser with no download, no sign-up and nothing to buy. All four levels are included and unlock as you clear them.
Can I steer the water?
No, and that is the game. Water falls if it can, slides diagonally off an edge if it cannot, and spreads along a floor until it finds a way down. Nothing you do moves a drop directly — you only decide which soil cells stop existing, and the water does the rest.
Why can I not dig the grey blocks?
Rock is what makes the level a puzzle. If everything were diggable there would be no route to find, only a straight line to clear. Rock decides which side of a shelf can carry water and which cannot, and reading that is most of the work.
How many digs do I get?
Exactly one more than the level needs. That single spare is the difficulty dial: it means a wrong pocket costs a star rather than the level, and it means the grid cannot be brute-forced by digging everything. The par is shown in the readout, and it is measured rather than picked.
Is every level actually solvable?
Yes, and it is searched rather than assumed. A reference solver digs against the same water simulation you play: it runs the level, looks at the soil the water is actually resting against, tries each of those cells, keeps the one that gets the most water furthest, and repeats. A level only ships if that search waters the plant, and par is that search’s answer rather than a number anyone typed.
Why not just check whether a path exists?
Because a path is not a promise. There is also a graph search here that finds the cheapest set of cells that could connect the tap to the plant, and it is deliberately more generous than real water — it allows a sideways step wherever a cell is open, where a real drop needs something under it. During development it proposed a route through open air on the fourth level that needed no digging at all, and the water simply refused to take it. So that search is kept only as a lower bound, and every candidate is confirmed against the real thing.
What happens if I dig nothing?
The water pools on the first ledge and stays there. The level does not end while you still have a dig in hand, so you can watch a full tap empty before committing — and when you do dig, the whole pool goes at once, which is usually the point. It only calls itself finished when the tap is empty, nothing is moving and no digs are left. That digging nothing can never water the plant is checked on every level: an early version of these grids leaked water off the side of the board, and one of them could be cleared by doing nothing at all.
Does it work on a phone?
Yes. Cells are large square targets, digging is a single tap with nothing to drag, and the grid scales to the frame — the layout takes the width in portrait so the cells stay as big as the frame allows.