About Tube Pour Lab
Tube Pour Lab is a calm, beautifully made colour sorting puzzle. A rack of glass test tubes sits on a polished wooden shelf, each one stacked with layers of bright liquid: cherry red, lagoon blue, lime, sunflower, grape and more. Tap a tube and it lifts off the shelf; tap another and it glides over, tilts and pours in a glossy stream, the level rising with a happy glug. The rule is simple: liquid only lands on the same colour or in an empty tube, and every tube holds four layers. Sort the rack so each tube holds a single colour and it corks itself with a satisfying pop. Sixty handcrafted-feeling levels start with a two-colour tutorial and grow to twelve colours across fourteen tubes, with an easier breather level every so often. Every puzzle is checked by a solver before it ships, so there is always a way through. Plan ahead to finish in fewer moves and earn three stars, use the three free undos when a pour goes wrong, or add one extra empty tube when you are truly stuck. Your progress and stars are saved, and it plays just as smoothly with one thumb on a phone as with a mouse on a big screen.
How to play
Tap (or click) a tube to pick it up, then tap another tube to pour. Liquid can only go onto the same colour or into an empty tube. Sort every colour into its own tube. Undo (Z), restart (R) and +1 tube (T) are at the bottom.
Controls
| Click / Tap | Select |
| Arrow keysSpace | Move |
Difficulty: ★★☆☆☆ · Released: 2026-10-07