Discount heatmap
One square = one day (darker = bigger discount) · use the arrows to look further back
Price analysis
The most common cut was -50%. Across 14 discount periods in 24 months (about every 52 days), the median sale length was 7 days. Its lowest recorded price was $4.99 (-50%) on Nov 27, 2024, so today's price is 100% above the lowest we have tracked. It was last discounted 21 days ago, on Oct 7, 2026.
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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From Wikipedia
SpaceChem is a puzzle and indie game by Zachtronics Industries, based on principles of automation and chemical bonding. In the game, the player is tasked to produce one or more specific chemical molecules via an assembly line by programming two remote manipulators that interact with atoms and molecules through a visual programming language. SpaceChem was the developer's first foray into a commercial title after a number of free Flash-based browser games that feature similar puzzle-based assembly problems.
Read more on Wikipedia →Recent discounts
| Period | Days | Max off | Low | MSRP |
|---|---|---|---|---|
| 2026. 10/1 ~ 10/7 | 7d | -50% | $4.99 | $9.99 |
| 2026. 6/25 ~ 7/8 | 14d | -50% | $4.99 | $9.99 |
| 2026. 5/28 ~ 6/3 | 7d | -50% | $4.99 | $9.99 |
| 2026. 3/19 ~ 3/25 | 7d | -50% | $4.99 | $9.99 |
| 2026. 1/31 ~ 2/10 | 11d | -50% | $4.99 | $9.99 |
| 2025. 12/18 ~ 1/4 | 18d | -50% | $4.99 | $9.99 |
| 2025. 10/13 ~ 10/18 | 6d | -50% | $4.99 | $9.99 |
| 2025. 9/29 ~ 10/5 | 7d | -50% | $4.99 | $9.99 |
+6 more periods (see heatmap)
DLC (1)
- SpaceChem: 63 Corvi$1.99
Latest news
- Jul 19, 2026UPDATE: Windowing improvements
- Jul 5, 2022Last Call BBS - The last game by Zachtronics!
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