In SpaceChem, you take on the role of a Reactor Engineer, designing complex reactors that transform raw atoms into the chemicals needed to survive sinister threats on the frontier colonies of space. It’s a maddeningly addictive puzzle game, and the recent addition of a level editor in the included "ResearchNet" update ensures that you’ll have plenty of challenging atomic manipulation at your fingertips.
If you haven’t already, do yourself a favor and pay what you'd like for Frozen Synapse, an excellent turn-based strategy game for Mac, Windows, and Linux, while supporting two worthy charities. If you decide to pay above the average price, you can also receive the Humble Frozenbyte Bundle, which includes Trine, Shadowgrounds, Shadowgrounds: Survivor, the Jack Claw prototype, and a Splot preorder.
The Humble Frozen Synapse Bundle offer ends on October 12th, so hurry up and get it here.