Happy Glass is a fun arcade game where you have to fill a sad empty glass with water to make it happy again. The game will start with a glass of water that is empty, and it is up to you to draw an imaginary line along which the train from the tap will slide and fill the glass to the top. There are 100 challenging levels to complete. Igirica Happy Glass was first published in August 2018. The online version is available from September 2018. Happy Glass is developed by Royale Gamers.