Atomica is a game designed to help beginning chemistry students retain and memorize the atoms that make up some of the more common molecules. For instance water is made of 2 Hydrogen atoms and 1 Oxygen atom. The player shoots a randomly selected atom from a gun onto a playing space. The objective is to form molecules with the given atoms. As you form more and more molecules, more atoms become available, and the possible combination of atoms becomes more complex.
The curriculet is a computer game that the user interacts with using a mouse to point the gun, and the left mouse button the fire the atom in the direction the gun is pointing. It's genre is akin to a puzzle game.