Atum for

From The Games Kitchen Ltd.:

Atum is inspired by the chemical processes in which atoms combine to form molecules. Players are faced with an infinite stream of atoms which must be placed on a board to create completed molecular structures. Completing a molecule removes its component atoms from the board, freeing up space to create new structures.

Atum's additional features include a highly competitive two-player mode, and COMING SOON the ability to submit a high score to The Games Kitchen in order to compare scores with Atum players around the world.