Tube Sort
Pour blobs between tubes until each tube holds a single colour. Endless levels that get trickier.
How to play
- Tap a tube to pick it up, then tap another tube to pour the top blobs into it.
- You can pour only onto the same colour or into an empty tube, and only if there is room. A tube holds four.
- Finish a level when every tube is empty or full of one colour. Each level adds a colour.
- Undo, Restart, Hint and New shuffle are free. Your highest level reached is saved.
Tips and strategy
- Keep one empty tube free as long as you can; it is your breathing room.
- Uncover buried colours before you start stacking on the top.
- Each colour also has a symbol, so you can tell similar shades apart.
- Stuck? Hint shows the next pour on a path the solver found, and Undo is unlimited.
FAQ
- Can a level be impossible?
- No. Every level is checked by a solver before it is shown, so a solution exists.
- Is the game colour-blind friendly?
- Yes. Every colour carries its own symbol, and tubes are announced to screen readers by those symbols.