Liquids Sort Puzzle is a sorting game that tasks the player to sort colored liquids into glass flasks across levels. The player earns gold and white star coins. They use the coins to purchase new mystery liquids, container shapes and backgrounds.
The initial levels start with the player sorting bubbling reagent liquids used in scientific chemical analysis across flasks in a laboratory setting. Gameplay isn't complicated at all. The player can sort a band of colored liquid into an empty flask or pour it atop a matching band in a semi-full flask. If there isn't enough space, the game only partially fills the flask.
If the player becomes stuck, they use a semi-circular reload arrow button in the top-left corner near the home button or a double-arrow forward skip button that appears during play below the level number at the top center. They can also undo a move with a blue back arrow near the top-right corner. After they use it five times, they must watch ads. They can add an empty flask to the field by using a button in the lower-right area and viewing ads.
Liquids Sort Puzzle eventually progresses to more difficult challenges. For example, it presents the player with black mystery liquids. The player can't find out the color of a mystery liquid until they transfer a visible band of colored liquid above it out of the flask. A Bonus Level button appears on the home screen that leads to an even harder task. Every flask has black liquid in it without any visible colored bands. The player must select each flask to see at least one band of color and then memorize the colors across flasks to match the liquids.