Choose SpaceChem
Choose SpaceChem if it carries the stronger Steam consensus at 95.6% positive across 1,904 reviews.
SpaceChem vs MOLEK-SYNTEZ
SpaceChem and MOLEK-SYNTEZ both land in Indie, Simulation on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Indie, Simulation on Steam. SpaceChem (2011) is 8 years older than MOLEK-SYNTEZ (2019). SpaceChem scores higher on Steam reviews (95.6% positive) than MOLEK-SYNTEZ (91.3% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose MOLEK-SYNTEZ
Choose MOLEK-SYNTEZ if it's the newer release (2019) and ships with the modern feature baseline. MOLEK-SYNTEZ launched in 2019.
Both SpaceChem and MOLEK-SYNTEZ sit in Indie and Simulation on Steam and both list Steam Leaderboards, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 SpaceChem |  MOLEK-SYNTEZ | |
|---|---|---|
| Released | 2011 | 2019 |
| Genres | Indie, Simulation | Indie, Simulation |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Steam Deck | Deck Playable | Deck Playable |
| Price | 9.99 USD | 9.99 USD |
| Steam reviews | 95.6% positive (1,904 reviews) | 91.3% positive (401 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Zachtronics | Zachtronics |
Side by side
- Both share Indie, Simulation on Steam.
- SpaceChem (2011) is 8 years older than MOLEK-SYNTEZ (2019).
- SpaceChem scores higher on Steam reviews (95.6% positive) than MOLEK-SYNTEZ (91.3% positive).
- MOLEK-SYNTEZ is currently ~0% cheaper on Steam than SpaceChem (9.99 USD vs. 9.99 USD).
- Both are Deck Playable.
SpaceChem vs MOLEK-SYNTEZ — FAQ
- Which is better, SpaceChem or MOLEK-SYNTEZ?
- On Steam reviews SpaceChem scores higher (95.6% positive) than MOLEK-SYNTEZ (91.3% positive). Both have enough reviews to trust the signal, so for players using reviews alone, SpaceChem is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play SpaceChem or MOLEK-SYNTEZ first?
- If you want chronology, SpaceChem (2011) came out before MOLEK-SYNTEZ (2019). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are SpaceChem and MOLEK-SYNTEZ similar?
- They overlap on Indie, Simulation on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.