SpaceChem
Offers
DLC
Screenshots

About SpaceChem
SpaceChem is a design-based puzzle game in which you work as a Reactor Engineer for SpaceChem, a chemical synthesizer serving frontier colonies. You build factories that turn raw materials into valuable chemical products, then streamline their designs to meet production quotas and survive threats to SpaceChem.
Puzzles and soundtrack
The game includes over fifty puzzles and an original soundtrack by Evan Le Ny, whose music was featured in The Codex of Alchemical Engineering. It also has twenty achievements.
Frequently asked questions
The best price for SpaceChem is $5.09 at Kinguin. That is 49% less than on Steam, where it costs $9.99. 10 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and SpaceChem stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for SpaceChem are: Windows XP, 1 GB RAM, 300 MB storage. It also runs on macOS. The recommended specs are in the System requirements section.
No. SpaceChem is a single-player game.
Mostly, yes. Valve rates SpaceChem as Playable on the Steam Deck: it runs, but may need some manual setup.
Buy SpaceChem 49% cheaper than on Steam.
SpaceChem is available for 49% less in shops such as Kinguin, Driffle, or Gameseal.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.














