The objective is to solve puzzles by moving molecules around. Solving the increasingly difficult levers in as few moves as possible is quite a challenge. Aquatomic is based on the KDE game KAtomic, but sports a nice Aqua UI.
Aquatomic: Aquatomic is a logic game. The goal is to arrange atoms into structures on a game board in order to advance to the next level. It is similar to the Sokoban game, but the player isn't represented by a piece in the game.