What is Bubble Sorting?
Bubble Sorting is a single-player color puzzle game developed by Eagle Games and released in December 2020. The objective is to organize mixed bubbles into designated glass tubes until each tube holds only one solid color. Because you cannot place different colors directly on top of each other, clearing a stage requires forward planning, patience, and clear spatial reasoning. The game runs directly in any modern desktop or mobile web browser with no downloads or installation required.
Key features
- Single-player logic puzzle: Focus on methodical problem solving at your own pace without time pressure.
- Strict stacking restrictions: Bubbles cannot rest against a different color, requiring careful intermediate transfers.
- Multiple difficulty settings: Choose between Easy, Medium, and Hard modes to match your experience.
- Generous level variety: Tackle 12 distinct levels in each difficulty tier.
- Move reversal system: Use up to 5 undo chances per level to correct mistakes and test alternate routes.
- Mobile browser support: Built for portrait orientation on phones, tablets, and desktop displays alike.
How to play
- Inspect the starting layout to identify which colors are trapped beneath other bubbles.
- Select a tube to lift its top bubble into position.
- Transfer that bubble to an empty tube or onto an identical color inside another tube.
- Continue moving bubbles between tubes to clear bottlenecks and group matching shades together.
- Fill each active tube with a single uniform color to finish the level and unlock the next challenge.
Sorting rules and difficulty breakdown
Bubble Sorting scales its challenge by increasing the number of active tubes and bubble colors that must be managed simultaneously. Every difficulty setting grants 5 reversal chances per attempt.
| Difficulty | Tubes | Colors | Levels |
|---|---|---|---|
| Easy | 5 | 3 | 12 |
| Medium | 7 | 5 | 12 |
| Hard | 9 | 7 | 12 |
Tips and strategy
- Keep an empty tube open: A completely empty tube is your most valuable asset because it can temporarily hold any color bubble.
- Focus on one shade early: Choose a single color and work systematically to consolidate it into one completed tube before scattering other bubbles.
- Do not waste undos: You have 5 chances to reverse moves on each level, so save them for situations where a transfer accidentally blocks progress.
- Think two moves ahead: Before lifting a bubble, verify that the destination tube will not trap a different shade that you need immediately afterward.
- Clear deep layers first: Look for the colors buried at the bottom of multiple tubes and plan a sequence of transfers to expose them.
Similar games
If you enjoy sorting puzzles and brain teasers on this site, explore these matching titles:
- Bird Sort Puzzle: Shift colorful birds between branches using similar organization rules.
- Liquid Puzzle: Pour colored water into separate vials until each container holds one shade.
- Blue: Solve minimalist logic challenges where each stage hides a different trick to turn the screen blue.
Developer and history
Bubble Sorting was developed by Eagle Games. The puzzle game debuted on web browsers on December 2, 2020, offering straightforward logic challenges designed for quick sessions on phones and computers.




