Atomix (or GNOME Atomix) – a puzzle game where you move atoms to build a molecule.
Atomix is a puzzle game in which you have to build full molecules, from simple inorganic ones in the first levels to extremely complex organic ones in the last levels, out of isolated atoms, which are laying around among walls and other obstacles on the playfield.
Once you push an atom in a certain direction, it will move until it hits something that makes it stop, which could be a wall or another atom. This
behaviour is exactly what makes playing it not trivial and, therefore, fun, as you need to think quite a lot about how to have your molecule organized.
The original Atomix game developer is Günter Krämer (as “Softtouch”).
Several open source clones of Atomix exist: Atomiks, GNOME Atomix, KAtomic and WAtomic.