Only! Valency
Publisher: Public Domain · Developer: Schulz, Jens
An excellent Shareware puzzle game in which you must create molecular structure of varying complexities depending upon which of the 300 levels you are on. Atoms must be placed in the correct sequence and there are rules as to exactly which atoms go where. The structure can be rotated as required to achieve your task. The game is GEM based and very easy to pick up once you've played it a few times.
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