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Zachtronics Industries is back with 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!
Release Date: Mar 2, 2011
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Buy SpaceChem

$9.99

Downloadable Content For This Game

About the Game

Zachtronics Industries is back with 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.

Key features:


  • Over fifty mind-bending puzzles!
  • An original soundtrack by Evan Le Ny, whose music was featured in The Codex of Alchemical Engineering!
  • Twenty challenging achievements!

PC System Requirements

    • OS: Windows XP SP3 / Vista / 7
    • Processor: 2.0 GHz Processor
    • Memory: 1GB RAM
    • Hard Disk Space: 300MB
    • Video Card: frame buffer support recommended

Mac System Requirements

    • OS: OS X 10.7 or later
    • Processor: 2.0 GHz Processor
    • Memory: 1GB RAM
    • Graphics: frame buffer support recommended
    • Hard Drive: 300MB
    • Additional: Mono 2.6 or later

Linux System Requirements

    • OS: Ubuntu 12.04 LTS, fully updated
    • Processor: 2.0 GHz Processor
    • Memory: 1 GB RAM
    • Graphics: frame buffer support recommended
    • Hard Drive: 300 MB
    • Other: Mono 2.6 or later
Helpful customer reviews
53 of 54 people (98%) found this review helpful
93 products in account
1 review
51.4 hrs on record
SpaceChem has the most marvelously difficult puzzles where you don't so much find a solution as build it. The difficulty rises steeply, and you may yourself stumped, only to wake up in the middle of the night thinking "Eureka! I've got it!" (true story.)
And once the atoms and molecules are whizzing around, doing their perfectly orchestrated dance that you yourself choreographed, you feel a wonderful sense of ownership of the solution, since it is in a very real sense yours.

No knowledge of chemistry required, but people with programming experience may have an edge.
Posted: November 25th, 2013
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34 of 35 people (97%) found this review helpful
250 products in account
10 reviews
68.2 hrs on record
Excellent puzzle/programming game. You will find yourself playing it even when you are not playing it.
Posted: November 25th, 2013
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13 of 14 people (93%) found this review helpful
143 products in account
1 review
36.0 hrs on record
This game consumed my life... literally... for a couple months. To put this game into simple terms, SpaceChem is basically a visual programming game. You receive various inputs and using various tools within the game, the goal is to generate a specified output. Loops, if/then statements, arrays, and many more tools are at your disposal. The game starts simply, but the difficulty increases quickly. Pretty soon, you will find a puzzle that completely stumps you.

This game is not for the feint of heart, the puzzles are hard. But since the game operates within a well defined set of rules, you will find yourself thinking of solutions throughout the day. I found myself drawing sketches to solutions that I had brainstormed while at work. Then I'd eagerly wait until the day was over to get home, try out the idea, and refine any issues. Like I said, the game consumes your life. But when you find yourself stumped on a puzzle for hours, only to conjure a solution during the day, and implement it to great success, you will feel an immense amount of accomplishment.

Quite simply, this is one of the best puzzle games I have played. I wish there was more, I must have more. My only disclaimer is that if you don't like steeply difficult challenges, then you likely won't enjoy this game. I will say it once more, this game is hard.
Posted: January 15th, 2014
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11 of 11 people (100%) found this review helpful
153 products in account
1 review
126.3 hrs on record
SpaceChem is one of my favourite games of all times, a 10/10, yet I am not sure I can recommend it. You need to be a particular kind of person to get into this game. And if you are not, you will definitely not enjoy this game.

This game is hard, very hard. I managed to finish it, but one of the last levels took me 2 weeks to solve, probably about 30 hours of trial and error, for just 1 level. It had me working with a pencil and a sketch pad as I sketched out little subsections of possible solutions. This is the only game ever that did that. The joy of finally solving it, was incredible, naturally, but you have to be able to put in the effort. Looking at a problem and going "ah, I'll just look up the solution on Youtube" is not the way to play this game.

At some point, every puzzles seems impossible, that is, until you solve it. And then the next seemingly impossible puzzle is presented to you. You can approach this in two ways, as the very best puzzle-challenge you will ever play, or as a game that makes you feel stupid. If you are the latter kind of person, do not get this game, obviously.

So, if you are looking for a genuine challenge that will push your creativity and out-of-the-box thinking to its limits, if you are tenacious and willing to be immersed so deeply that you'll start dreaming up solutions while you sleep, this is hands down the very best puzzle game you will ever play. If you are not, then this is definitely not the game for you.

Do I recommend this game? YES, just not to everyone.
Posted: February 21st, 2014
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6 of 7 people (86%) found this review helpful
157 products in account
2 reviews
83.0 hrs on record
Tired of similar games genres (FPS, RPG and etc.) constantly coming out? You want something chalenging and fresh? You play best with your brains and not your mouse and/or skill? You're not fast but very smart? Like insanely hard puzzles?
Then buy this.
I'd say this one is best and hardest puzzle game I've played in my life.
Posted: December 15th, 2013
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