What is SpaceChem?

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.

Not sure what this means? Play the free demo, available now for Windows, Mac, and Linux!

Critical Acclaim

"I think we might have just received one of the year's best indie games in the first week of 2011." (Quintin Smith, Rock Paper Shotgun)

"...a thoroughly rewarding experience, with more 'holy $#@%!' moments than there are elements of the periodic table." (Michael Rose, Indiegames.com)

7/8 at Out of Eight

89/100 at PCGamer

9/10 at Eurogamer

9.5/10 at Igromania