Atomino is a 1990 puzzle video game originally for the Amiga, Atari ST and MS-DOS.

The objective is to build molecules from atoms, with gradually increasing difficulty and speed.

The player is given a grid on which to place atoms, which are supplied at random into a stack.

When all connected atoms have exactly the correct number of bonds, a molecule is completed, and it is removed from the board.

In addition to completing the objective, the player must remove all atoms from the board before the next level starts.