The objective of AquaGrin is simple: fill the empty glass with a precise amount of water. However, reaching this goal requires navigating through a variety of intricately designed levels, each with its own unique twists and challenges. Players must skillfully maneuver streams of water, overcome barriers, and strategically utilize objects to direct and control the flow.

The game's intuitive controls allow players to manipulate the environment with ease. Tilt your device, swipe across the screen, and interact with objects to find the best path to fill the glass. As you progress, the puzzles become increasingly complex, requiring more precise timing and inventive problem-solving skills.