Only! Valency

## Description

_Only! Valency_ is a puzzle game in which you have to reconstruct molecules.
Each molecule is consisting of atoms in six different colors with connections
to each other. On the lower border you have a strip with according atoms,
which you can scroll left and right to select an appropriate color. You can
only set atoms on spots connected to any atom already added to the molecule
(and in each level at the beginning one atom is given). There are some
constraints on adding atoms: beside a connection to an already added atom the
nearest connection in the selected columns must be of the same color than
chosen in the stripe below. Adding always go from the top to the bottom, and
if any atom in the chosen column is lower than the free spot, this column is
blocked. To reach free spots, you can rotate the atom in 90 degree steps and
move the adding column left and right.

The goal in _Only! Valency_ is strictly time based and the game forces you to
add the atoms as fast as possible by rewarding better times with higher
scores. But you have to be careful: if you have chosen a wrong color or adding
to a blocked column, you are punished with fault points. Also, in some
situations, you have to add atoms from the left or right, which is valid, but
also increasing your fault score.

There are three playing mode: in “Solitaire” mode you have no time limit, but
building the molecule faster gets you a higher score. In “Tournament” mode you
have an overall time limit for rebuilding the molecule. In “Fallout” you have
a maximum time per atom, which is reset after adding one atom. Both time
limits in Tournament and Fallout can be chosen by the player. A high-score
list keeps track of the players success. There are 300 levels which you can
play in any order. Language in the game is either English or German.

Only! Valency