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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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All you Humble Bundle purchasers know the drill. Check out your Humble Bundle download page for links to Windows, Mac, and Linux versions of SpaceChem, the mind-bending, molecular machine-building puzzle game by Zachtronics Industries!

Be sure to watch it in HD!

In SpaceChem, you take on the role of a Reactor Engineer, designing complex reactors that transform raw atoms into the complex 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.

More than 150,000 Humble Frozen Synapse Bundles have been purchased with 8 days left in the promotion. Enjoy SpaceChem, and remind your un-bundled friends and family to visit humblebundle.com to score a deal on great indie games!

SpaceChem now on Desura!

SpaceChem now on Desura!

4 years ago News 0 comments

Solve puzzles by building machines and fighting monsters, all in the name of science!

IOTY Players Choice - Indie of the Year

IOTY Players Choice - Indie of the Year

3 years ago Feature 42 comments

Ho ho ho Merry Christmas and merry Indie of the Year!

Post comment Comments  (0 - 10 of 30)
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richard_vdijk Jan 21 2013 says:

It surely looks impressive, gotta try this!!

+1 vote     reply to comment
CornbreadMuffin Jan 9 2013 says:

Great game, although the tutorial could be confusing for less geeky players. Or maybe that's what the video's for; I didn't watch it (necessitating a YouTube video to play a downloadable game just strikes me as odd). This is definitely one of the better programming games I've played, and I like how you used the Periodic Table with it.

+1 vote     reply to comment
teorialupiniana Sep 26 2012 says:

I tried the demo with ubuntu 12.04 and windows 7, both install with easy and runs smoth. It's a great puzzle game, that makes me imagine how good it will be for some fun with chemical class at school.

+1 vote     reply to comment
Dorsai! Dec 23 2011 says:

Will the update come to desura eventually? Having the "Update released" message ingame makes me nervous.

+3 votes     reply to comment
Nuck-TH Dec 13 2011 says:

game updated, why content on your servers is old?

+2 votes     reply to comment
balasar0451 Nov 2 2011 says:

this is very addictive :D

+7 votes     reply to comment
Dinopron Oct 22 2011 says:

Trying to play Spacechem on a fresh install of Ubuntu 11.10 I had the following issue: The game didn't started trhough Desura and starting by the console I had the following output:

"The assembly mscorlib.dll was not found or could not be loaded.
It should have been installed in the `/usr/lib/mono/2.0/mscorlib.dll' directory."

Looking at "/usr/lib/mono" I found out that only the folder 4.0 was there, so, long story short I resolved this problem installing:


(The dependencies were satisfied automatically)

And edited the file "~/desura/common/spacechem/spacechem-launcher.sh"

changing the line "./mono SpaceChem.exe" to "mono SpaceChem"

I'm not sure if this is the right place to post this but I hope it helps, because it was the first place I looked for support, by the way, thanks to everyone that put answers here or in the forums, it really makes the difference guys >D

+4 votes     reply to comment
intgr Nov 9 2011 replied:

This issue is fixed now, at least it works here. :)
Please report Linux game problems in the "Application Linux" forum: Indiedb.com

+4 votes     reply to comment
enseyn Oct 24 2011 replied:

Thank you so much. Installing the dependencies fixed it. It should be noted that you no longer need to edit spacechem-launcher.sh because the most recent update has already changed it.

+3 votes     reply to comment
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Windows, Mac, Linux
Developer & Publisher
Custom Built
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Release date
Released 2010
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Community Rating



150 votes submitted.

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Highest Rated (3 agree) 9/10

I'm at a point in this game where I can play this for very long amounts of time. This is a good thing. I get my next puzzle, close the game in disgust ("HTF am I supposed to do that!?!") then proceed to spend the next few hours or days thinking about how to solve the puzzle. It's a game you keep playing, even when you're not playing. Then it gets worse, you finally find a solution, but it seem inelegant. You are using too many components, it's taking way too many cycles. And the process begins again…

Oct 26 2011 by hackenstaben

Single Player
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Last Update
3 years ago
112 members