SpaceChem

85KS84Metacritic

Released Mar 2, 2011by ZachtronicsVery Positive(92% of 5.1K Steam reviews)Recent: 100% positive

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!

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View on Steam

Lowest tracked price

PLN EUR USD GBP CAD

£2.96-65% vs Steam

at K4G

price checked Jul 27, 2026

Shop now ↗4 offers from 4 shopsfrom £2.96

Price CheckHow it works

Within 1% of the lowest tracked price
Was £2.94 on Jul 15, 2026

Tracked since Jul 7, 2026.

Price stats

Steam price: £8.50save £5.54
30-day Steam low: £4.25
Lowest tracked: £2.94Jul 15, 2026

Steam Train Fest ends on Jul 27

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Offers

What are keyshops?

Official stores

Official stores with direct support.

Steam

SteamSteamOfficial

updated Jul 26, 2026

£8.50

Shop now ↗

Keyshops

Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →

K4GSpaceChem Steam CD KeyKeyshop

updated Jul 27, 2026

Lowest price

-65% vs Steam£2.96

Shop now ↗

GamivoSpaceChem EN GlobalKeyshop

updated Jul 27, 2026

-52% vs Steam£4.04

Shop now ↗

EnebaSpaceChem Steam Key GLOBALKeyshop

updated Jul 27, 2026

-51% vs Steam£4.18

Shop now ↗

Demo (1)

Try this game before buying.

SpaceChem Demo

No price tracked

Multipacks (1)

The Zachtronics Puzzle Pack

-20%£95.67

DLCs (1)

SpaceChem: 63 Corvi

£1.69

About SpaceChem

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! 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!

Game details

Released

Mar 2, 2011

Developer

Zachtronics

Publisher

Zachtronics

Platforms

Windows, macOS, Linux

Steam Deck

Playable

Metacritic

Steam rating

Very Positive (92%)

Age ratings

IGRS 15DEJUS 12STEAM_GERMANY 16

SpaceChem price history

Lowest tracked price: £2.94 (Jul 15, 2026) · current best: £2.96 across 4 stores.

SpaceChem player count & reviews

92% positive reviews all-time · 28 peak players in the last 30 days.

SpaceChem — frequently asked questions

Where can I buy SpaceChem at the cheapest price?

Right now the cheapest offer for SpaceChem is £2.96 at K4G. KingsPrice compares 4 offers from 4 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price SpaceChem has ever been?

The lowest price KingsPrice has tracked for SpaceChem is £2.94 (recorded on Jul 15, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play SpaceChem?

SpaceChem peaked at 28 concurrent players on Steam in the last 30 days (highest on Jul 11, 2026). The player chart on this page updates daily.

Is it safe to buy a SpaceChem Steam key from a keyshop?

Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →

How can I get SpaceChem at a discount?

Create a free price alert on this page and KingsPrice will email you when SpaceChem drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.