Test Tube - Color Sort Puzzle!

Welcome to Test Tube – The Ultimate Color Sorting Puzzle!

Looking for a fun, relaxing, and brain-teasing game? Test Tube is an addictive test tube color sorting puzzle designed to test your logic and keep your mind sharp!

GOAL OF THE GAME:
Your mission is simple yet challenging: sort the mixed colorful balls inside the test tubes until all balls of the same color are in a single tube.

HOW TO PLAY:
Tap any test tube to move the top ball to another tube.
The Rule: You can only move a ball into an empty test tube OR on top of another ball of the exact same color.
Plan your moves carefully! The goal is to sort the colors so that each tube contains exactly 4 balls of the same color.
Win the level and unlock the next brain-bending challenge!

Every level has at least one solution, but if you get stuck, you can go back any number of moves (even to the start) by clicking UNDO. Alternatively, open the MENU and select RESTART to try the level with a different ball arrangement.

KEY FEATURES:
The game never ends! Enjoy an infinite number of levels. There is always a brand new, unique puzzle waiting for you to solve. You will never run out of challenges!

Play Offline (No Wi-Fi Needed)
No internet connection required. Test Tube is the perfect game for traveling by bus, train, or plane. Play wherever and whenever you want, completely offline.

Auto-Save Progress
Need to take a break? No problem! The game automatically saves your current level progress. Close the app at any time and pick up exactly where you left off the next time you play.

Why play Test Tube?
Easy to learn, hard to master.
Completely free to play.
No time limits – play at your own pace and relax.
Great exercise for your brain and logical thinking.

Download Test Tube now, start sorting the colorful balls, and see how far you can go in this endless puzzle adventure!