Let it flow: Pipe Puzzle

Turn the pipes. Let it flow.

Let it flow is a calm, colourful pipe puzzle. Water waits in the reservoir at the top of the board, and empty tanks wait at the bottom. Tap a pipe to turn it, line the pipes up, and lead the water all the way down into the tanks. When every tank is full, the water floods the screen and you're on to the next level.

Sounds simple? Then the colours arrive. Coloured rings dye the water that runs through them, and every tank wants its own colour. Send the right stream to the right tank, and keep the colours apart: when two colours meet, they turn to mud.

★ 500 LEVELS
Start with small 3×3 boards that teach you the basics, then work your way up through 500 puzzles on boards up to 10×10, with up to five colours to sort. Every level is guaranteed to be solvable.

★ EARN ALL 3 STARS
Every turn is a move. Solve a board in as few moves as you can to keep all three stars. The stars below the board drain as you play, so you always know how close you are. Replay any level from the level overview to go for a perfect score.

★ A NEW CHALLENGE EVERY DAY
Every day brings a fresh daily challenge: a big board with lots of tanks and a limited number of moves. Beat it before your moves run out, build your streak day after day, and collect all 30 challenges.

★ CALM AND RELAXING
Soft water sounds, glowing pipes, flowing liquid and a satisfying flood at the end of every level. No timers, no rush. Just you, the pipes and the flow.

★ PLAY YOUR WAY
• Restart a board at any time
• Stuck? Use Help to turn a pipe into place (the first help on every board is free)
• Out of moves in a daily challenge? Watch a short video for 5 more moves
• Optional daily reminders so you never miss a challenge
• No account needed
• Sound, music and vibration can be switched on and off

Let it flow is free to play and contains ads.

Turn the first pipe and let it flow!

Recent changes:
First version of the game