Water Flow is a pull-the-pin puzzle game that is extremely easy to play but hard to stop. If you have been looking for a good pin puzzle, this is the one to try.
Each level has water held back by pins inside a maze of pipes. Adjust the pins by pulling or dragging them. Open the right ones in the right order to make the water flow through the pipes to where it needs to go. One wrong pin can send the water the wrong way, so think about each move before you make it.
A calm brain teaser that is perfect for quick breaks. Watching the water rush through the pipes is very satisfying.