Pipe Twist

Pipe Twist is a calm but clever water puzzle. Each board is a grid of pipe pieces: straights, corners, T-joints, crosses and end caps. Tap a piece to give it a quarter turn. When the pipes line up, water runs from the fountain, and every plant it reaches grows and bursts into flower. Fewer moves earn more stars, and every board can always be solved.

Boards grow from small 5x5 gardens to 9x11. Later levels add bolted tiles, two sources whose colours must never mix, leaks that drain a tank and pipes that wrap from one edge to the other. Easy makes correct tiles glow; Hard adds a move limit and a timer for double score. Coins buy five themes and helpers such as hints and auto-fix.