Free Steam keys! At the moment, you can grab a FREE Steam Key for the critically acclaimed design-based puzzle game "SpaceChem" playable on Windows PC, Mac and Linux! This promotion by Bundle Stars & PCGamer only runs for a limited time!
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The Game? SpaceChem for STEAM (Windows, Linux & Mac)
An ambitious new design-based puzzle game. 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.