Game basics

Aim of the game

Build a pipeline on the playing grid using at least the number of pieces shown in the scorebar within a time limit.

How to play

The current pipe segment is the bottom one in the stack (on the left of the screen).
To drop it, click when the desired box on the playing grid is selected.
Once a piece is dropped the stack scrolls automatically. You can scroll the stack without putting any piece on the grid by clicking on the "Arrow" button or by pressing the assigned action key (default, Shift).
You can destroy wrong placed pipe segments or reveal bonuses (those marked with a "?"), using the "Bomb" button, either by clicking it or by pressing the assigned action key (default, Option). Both actions are allowed only the number of times specified by the number shown in the button.

When time runs out the water starts flowing in the pipeline; if you estimate that your pipeline is long enough to cover the required distance, you can start the flow at any time using the assigned action key (default, Space). A click of the mouse button will speed up the flow.
All the three action keys are redefinable in the Preferences dialog (Keys tab).