SpaceChem

Do you know what a Waldo is? How about the molecular structure of sodium

nitrate? Ethane? No? Me neither. Luckily, that�s not really what
SpaceChem is about. It�s a puzzler about combining atoms to form these
molecules, but the emphasis is on the combining, not the molecules. That
means creating ever more elaborate circuits, filled with complex
instructions, to manufacture the desired substances. That�s the theory
anyway, and for some that�s certainly how it works, as evidenced by the
post-level graphs showing where you stand compared to everyone else
playing.

SpaceChem is an obscenely addictive, design-based puzzle game about building machines and fighting monsters in the name of science!

Take on the role of a Reactor Engineer working for SpaceChem, the
leading chemical synthesizer for frontier colonies. Construct elaborate
factories to transform raw materials into valuable chemical products!
Streamline your designs to meet production quotas and survive encounters
with the sinister threats that plague SpaceChem.

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