
Zachtronics 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!
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
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Genres
Sums Steam only; GOG publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $9.99 | 5.1Kreviews | 92% | — | $2M |
| $9.99 | 584ratings | 92% | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
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Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Reviews
Themes across 55 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Great puzzle game, many ways to optimize solutions. Zachtronics games are at heart Code Golf.
Nearly 22hrs of gameplay over 9 years and haven't even made it halfway through the fourth level. Game is too hard and the brain is fried. 10/10
SpaceChem is the kind of game that never really leaves your head — I'd close my laptop and find myself lying in bed mentally rerouting waldos instead of sleeping. The difficulty is brutal and uncompromising, but that's the point: every solution you build feels genuinely yours, a mess of spaghetti logic that somehow works, and the satisfaction of watching your reactor hum along after hours of failed attempts is unlike anything else in the genre. It's less about eureka moments and more about grinding through iteration after iteration until your contraption finally clicks, which felt frustratingly like real engineering work in the best possible way. Fair warning — if you're a programmer looking to unwind, this is basically a second job, but one you'll keep coming back to at midnight with one more idea to try. If puzzle games are your thing and you don't mind a game that will genuinely humble you, this is absolutely worth it.
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, French, German, Russian, Italian, Japanese, Portuguese - Brazil, Spanish - Latin America
Hours played at review time, across 55 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
One of the earliest programming games, and still one of the best. I'm pretty sure this popularized Zachtronics as a developer, and hence the word "Zach-like" to describe these kinds of programming games. At the same time, this is quite unlike most programming games, because you don't deal in numerical inputs or anything. You have chemical atoms and molecules as your inputs, and you have to arrange them to desired outputs. In a way, it's more engineering than programming, except you'll still have plenty of programming: you can implement branching programs, you need to handle an unknown mixture of inputs, and so on. The game is insanely hard, and the levels are fairly linear. There's one specific path of levels that you need to solve to complete the story. There are optional challenges off the path, but in the main path, either you solve the level or you're just forever stuck and cannot advance. So that's perhaps the biggest strike against it. There are also some boss levels. These ones require some real-time elements to it; you might be producing molecules to power up laser beams to fight a boss. I think they are an interesting break from the regular levels, but some people hate them, your experience might differ. It also has a pretty mature story that might be quite unnerving to read. I think it's still well worth it, though, despite the shortcomings. The levels are clever, and the optimizations are tough. Besides the main story, you have a whole lot of custom puzzles that are added to the game, and you can even share puzzles in other communities. It's absolutely worth your money and time.
I got this game just for TF2 items a year ago. Then I realized this game is for smart people
- Вы бы порекомендовали эту игру другим? - Да.
I launched along with my 2 co scientistic people and we did some science and we dropped our balls at the fourth test. because it was so Sciency that we saved the galaxy. Long story short ,this game is very atom, and lines. Long story short, wow "That sounds like a gloriously chaotic co-op session. Saving the galaxy with two friends using "science," dropping the ball on the fourth test, and wrapping it all up in an "atoms and lines" aesthetic is top-tier gaming. I'm trying to pin down the exact game based on those clues. Astroneer? A very abstract session of Helldivers 2? Or maybe a hidden indie puzzle gem? Would you like to drop the title so I can stop guessing, or do you want to give me another hint?"
A strong puzzle game that can become a bit more like work than play. If you like that sort of depth in your puzzlers, this is a strong recommend. I think it's pretty unapproachable for the average player.
This game is actually really difficult and takes a lot of your brain. If you aren't willing to spend 6 hours beating a level then don't buy this game
Has some real brain teasers, it's pretty fun.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
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