Happy Glass

Happy Glass, published by Lion Studios, hands you a pencil and a problem: an empty glass looks miserable, and it only cheers up once liquid fills it. Each level is a small physics puzzle built around guiding that liquid.

You draw lines freely on the screen to create ramps, walls or funnels, then water pours and either lands in the glass or spills. There is no single fixed answer, so creative solutions are allowed. Levels award up to three stars, and some that look simple are harder to perfect. The description promises many levels with more planned, and a relaxed theme overall. Because physics decides where the water goes, a line that looks right can still fail, which invites repeated attempts and small adjustments. Sessions can be as short as a single level.

It has 100,000,000+ installs, but the reception is divided: 3.5 from about 1 million ratings, with 52% five-star and a heavy 28% one-star. It is free with ads, and in-app purchases are priced from Rp 13.000 to Rp 1.484.852 per item. The update on 2026-09-10 is recent, Android 8.0 or newer is required, and it is rated for 3+. We list 31 versions, the latest being 2.0.3 at 141.8 MB.

Casual puzzle fans who like freeform drawing solutions can still find it charming. Given the high one-star share, players sensitive to ads or difficulty spikes should go in with modest expectations.