Pipe Connect — free browser game

Build an unbroken pipeline between the source on the left edge of the grid and the outlet on the right. Tap or click any pipe cell to rotate it 90° clockwise. Straight pipes, elbows, and T-pieces each have different open sides — two neighbouring cells only connect when both their facing edges are open. The source and outlet are locked and can't rotate. As soon as the flow reaches a pipe it lights up, giving you instant visual feedback on what's connected. Light up the outlet to clear the level and unlock the next. Your fewest-moves record per level is saved; press R for a new puzzle. Tip: build from the source outward step by step and ignore decoy pipes that aren't on your route. Use T-pieces to merge flow back together rather than splitting it.