Happy Glass 3

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About Happy Glass 3

Happy Glass 3 is a line-drawing physics puzzle in the same family as pen-and-paper contraption problems. Each stage gives you an empty glass and a stream of water that falls under gravity, and your job is to draw shapes that catch and steer the liquid until the glass is full enough to grin back at you. Anything you draw becomes a solid object, so a shallow ramp guides, a cup shape holds, and a badly angled line sends water off the edge of the screen. Three modes vary the challenge. Precise mode rewards careful placement, don't spill mode counts every drop you lose, and flippy glass mode gives you a container that can topple if the water hits it wrong. Attempts last seconds rather than minutes, so failing a stage in Happy Glass 3 costs almost nothing.

How to Play Happy Glass 3

Click or tap and hold, then drag to draw a line; release to finish the stroke. The drawn shape drops into the scene and interacts with the water immediately, so build ramps, walls and funnels where you need them. Use the restart option to clear a stage and try a different shape. Mouse on desktop, one finger on touchscreens.

Tips and Tricks

Short strokes usually beat elaborate structures. A small ramp placed under the stream does the same work as a long line, and long heavy shapes are more likely to fall and knock the glass over.
Draw near the top of the falling water rather than right beside the glass. Redirecting the stream early gives you a gentler, more predictable path into the container.
In don't spill mode, check where two separate strokes meet. Water finds the smallest gap between lines, so overlap the ends instead of leaving them touching.
In flippy glass mode, aim for the middle of the glass rather than the rim. Weight landing off-centre is what tips it, so a vertical drop into the centre is safer than a side-on splash.

Frequently Asked Questions

Is Happy Glass 3 free to play in the browser?

Yes. It runs directly on Dubdoo with no download, no install and no account needed.

What are the three modes?

Precise mode, which tests accurate line placement; don't spill mode, where losing water counts against you; and flippy glass mode, where the glass itself can tip over.