SpaceChem

SpaceChem

Zachtronics · March 2, 2011 · Puzzle, Difficult, Programming, Indie, Logic

Buy the SpaceChem key for Steam from Kinguin at $5.68 — the cheapest of 9 stores we compare.

PC
Very Positive92% · 5,09684Metacritic12playing now
Best price 33 Fair price
$5.68-43%
lowest tracked $0.99
Kinguin Buy at Kinguin

Prices last checked

More games under $10 →

Where to buy SpaceChem — official stores

Steam
Steam
Standard Edition · Steam
$9.99
Buy
GOG
GOG
Standard Edition · DRM-Free
$9.99
Buy
Fanatical
Standard Edition · Steam
$9.99
Buy

Cheapest SpaceChem keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Driffle INC
Standard Edition · Steam
$5.83
Buy
Kinguin
Standard Edition · Steam
$5.68
Buy
Eneba
Standard Edition · Steam
$5.92
Buy
Gameseal
Standard Edition · Steam
$6.01
Buy
Keycense
Standard Edition · Steam
-44%
$6.31
$11.28
Buy
CJS CD Keys
CJS CD Keys
Standard Edition · Steam
$6.31
Buy

Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest confirmed price is always shown in the Best price box above.

SpaceChem price by region

SpaceChem costs $2.89 in Georgia (USD), £4.24 in the United Kingdom, €4.87 in Europe (EUR), $5.68 in the United States, CA$10.99 in Canada, A$13.49 in Australia, NZ$14.75 in New Zealand, zł18.75 in Poland and R$25.25 in Brazil right now.

Cheapest SpaceChem offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $2.89 $2.89 $5.68 8
United Kingdom £4.24 −37% £6.75 £4.24 7
Europe (EUR) €4.87 −32% €7.15 €4.87 8
United Statesyour region $5.68 −43% $9.99 $5.68 9
Canada CA$10.99 CA$10.99 — 3
Australia A$13.49 A$13.49 — 3
New Zealand NZ$14.75 NZ$14.75 — 2
Poland zł18.75 zł18.75 zł23.26 3
Brazil R$25.25 R$25.25 R$32.92 3

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Trailers & screenshots

Watch the SpaceChem trailer →

About SpaceChem

✦ AI summary

Design mind-bending chemical factories by drawing reactor paths to synthesize materials and meet production quotas in this puzzle game from Zachtronics. Master increasingly complex automation challenges across fifty levels while uncovering the dark secrets lurking within SpaceChem's frontier operations.

SpaceChem

SpaceChem — game info

Platforms
Windows, macOS, Linux / SteamOS
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac gamesLinux games

SpaceChem in the rankings

DLC & expansions

🎁 Complete the collection

Base game + 1 of 1 DLC at today's best prices.

$7.67
to own everything

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Sep 29, 2026
Nice puzzle game =) Actually helped me get better at programming ...
Recommended Sep 27, 2026
Epic puzzle game. The solutions are all logical and completion is always just out of reach but never impossible. After having this game for 10 years and spent 93 hours trying to beat it, I've never felt so elated to see the credits of a game roll by. The final level/boss is tough as nails but like the other levels, not impossible if you break down the steps bit by bit. I enjoyed the story too, it added a little sense of place to all the puzzles. My white whale is finally defeated.
Recommended Sep 25, 2026
An amazing puzzle game with a good tutorial (ahem SHENZEN) that has a skill ceiling that would be ridiculous to have in my home. The difficulty starting out is good and ramps up fairly well, but Alkonost will punch you, kick you in the shins, then steal your lunch money with those sensors. Overall, it's good but challenging and will require a lot of thinking.
Recommended Sep 24, 2026
Playing on Steam deck. Great game.
Recommended Sep 23, 2026
SpaceChem is so much fun, it’s insane. Forget about Infinifactory or Opus Magnum, this is the one to play. I got all Steam achievements in 33 hours, and I still want to keep playing ResearchNet levels! For most of the main game, levels were quite easy to complete without constraints, so I found it the most fun to complete them while trying to minimize reactors, time or symbols (in decreasing order of how much I enjoyed each). In the last couple worlds and ResearchNet, levels did sometimes get hard enough for un-constrained solving to be satisfying. It was especially satisfying to toy around with a problem for 20 minutes, be left with a complete mess that I need to delete, but use the gained deeper familiarity with the low-level constraints of the problem to draft a high-level plan which feels like a breeze to execute. I quite enjoyed the defense missions, they really gave me the satisfying feeling of using cursed tactics to barely scrape by. Although the run-time execution of the very last one felt too finicky, which probably could have been avoiding by making the ships switch among ~4 discrete positions instead of a continuous line. (But to be honest, if you get the ship into a …
Not recommended Sep 23, 2026
game just doesn't work anymore. tried various fixes and still no good moving on

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