About Pipe Flow
Pipe rotation puzzles are a relaxing classic of logic games. Water lights up as each pipe connects to the source.
Pipe Flow at a glance
| Genre | Puzzle game |
|---|---|
| Price | Free, no download or sign-up |
| Controls | Tap |
| Typical game length | 5 to 15 minutes for 5 levels |
| Lives | None |
| Works on | Phones, tablets and computers, in any modern browser |
| Daily challenge | Yes, the same puzzle for everyone each day |
How to play Pipe Flow
- Tap a pipe. It rotates a quarter turn.
- Connect to the source. Water flows from the center tile.
- Light up everything. Every pipe must carry water.
Rules
- 24 levels.
Levels and difficulty
24 levels, growing from 4×4 to 9×9 boards. Your progress is saved on your device, and you can replay any level you have unlocked.
Scoring
Bigger boards score more, minus a penalty for extra taps. Daily challenge scores can be shared with friends.
Tips and strategy for Pipe Flow
- Start with corners and edges: they have fewer possible rotations.
- Dead-end pieces always point into the network.
How we built and tested Pipe Flow
Every board is generated from a connected network that reaches every square, then randomly rotated, so each has a solution.
Frequently asked questions
Is every board solvable?
Yes, each comes from a real connected network.