Fill the glass is a casual puzzle game in which you draw lines or free-form doodles to guide water into a glass. The objective is to get the water into the container so the level can be completed and the next puzzle can be reached. Different possible drawings can solve a puzzle, so the game encourages experimentation rather than requiring one fixed answer.

Drawing solutions

Each level presents a situation where the path of the water must be influenced by your drawing. Lines can redirect the stream, support its movement, or change how it reaches the glass. Because the source describes more than one possible solution, players can use their own approach instead of copying a single prescribed design.

Physics-based water movement

The water is designed to move and splash in a way that reflects physical motion. Drawn lines may bend, bounce, or tip the stream, making the placement and shape of each drawing important to the result. This creates a direct connection between the control method and the puzzle objective: the drawing determines how the water travels.

Levels and difficulty

Fill the glass includes over 100 levels, with some intended as quick solutions and others requiring more thought. The game describes its puzzles as having varying difficulty, providing a progression from straightforward challenges to situations that call for more creative line placement. Completing a level allows play to continue to the next one and may provide rewards.

Hints and presentation

A hint feature is available when a player is stuck, offering guidance toward a solution. The source also describes a simple interface, a guide, and high-quality visuals supporting the water-and-drawing presentation. Controls are centered on drawing, keeping the main interaction focused on testing a line and observing the resulting water movement.