Pipeline 3D Online

Pipeline 3D Online stretches the classic pipe-connection puzzle into three dimensions. Rotate cube-shaped junctions floating in space to channel liquid from the source to the destination, and because pipes face six directions instead of four, your spatial reasoning works twice as hard. Levels grow from single straightforward runs to branching networks with valves, tanks and colour-coded liquids that must never mix. Watching a completed pipeline fill and flow in 3D is the game's quiet reward. Rotating controls are simple taps, so the challenge stays purely mental. A clever spatial brainteaser, free in any browser.