Tetricity is a mobile game project. This 2D puzzle and strategy game can be easily played with one hand, anywhere. The game screen is divided vertically into three main zones: Placement Zone, Platform Zone, and Slots Zone. In the Slots Zone, various shapes appear, each made of at least two square blocks and having a unique score value. When the player selects a shape and drags and drops it into the Placement Zone, the shapes fall onto the platform in the Platform Zone. The player’s goal is to keep the shapes balanced to prevent them from falling off the platform and achieve the highest score possible.