Bubble Sorter

Sort every stubborn bubble into its own tube without trapping the color you need under the wrong ones.

I've lost entire evenings to this one. Bubble Sorter gives you a handful of glass flasks with colored bubbles stacked inside, and your only job is to get each color into its own tube. Sounds easy. Then you tap a bubble, watch it fly to another flask, and realize you just buried your last red under three blues. That's the moment the game gets you. What makes it tick is the restriction: you can only move a bubble if the destination tube has space and the top bubble matches (or the tube is empty). So you'll start planning three moves ahead, cursing yourself for not leaving an empty flask open. I found myself restarting levels after one bad tap. The controls are dead simple—tap a flask to pick up the top bubble, tap another to drop it—but the logic is surprisingly deep for such a clean little puzzle. The levels ramp up gradually from four colors to six or seven, and by the time you hit the later ones you're juggling half a dozen tubes and second-guessing every move. There's no timer, no lives, no pressure. Just you, the bubbles, and that quiet satisfaction when the last blue clicks into place. If you're after a chill brain workout, this is the one to keep open in a tab.

Tap on bubbles to play the game.

Empty flasks are your most valuable tool; keep one open whenever possible. Look for a color that's already almost sorted and finish it first to free up space. Don't tap aimlessly—before moving, check the top bubble of every tube. If you're stuck, restart the level; there's no penalty for resetting. Work from the bottom up: the deepest buried color determines your next move. Sometimes it's smarter to move a bubble onto a matching top even if that tube isn't finished yet.

Q: Is Bubble Sorter free to play? A: Yes, it's completely free online with no hidden purchases. Q: Can I play Bubble Sorter on my phone or tablet? A: Yes, the HTML5 version works on most mobile browsers with touch controls. Q: Do I need to download or install anything? A: No downloads needed—just open the game page and start tapping bubbles. Q: How do I restart a level if I make a mistake? A: Look for a restart button or refresh the page to reset the current puzzle. Q: Is Bubble Sorter good for kids? A: Yes, it's a non-violent logic game that helps with color recognition and planning. Q: Does Bubble Sorter have a timer or limited moves? A: No timer, no move limit—play at your own pace and restart if needed.