

Metacritic
IGDB
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SpaceChem is a puzzle game where you design chemical reactors to solve intricate logic challenges. Developed by Zachtronics Industries in 2011, it blends programming-like problem solving with a sci-fi setting. You act as a Reactor Engineer building factories to convert raw materials into products, balancing efficiency and resource management. The game thrives on its abstract mechanics, requiring players to manipulate atoms, bonds, and conveyor belts. It’s a cerebral experience for those who enjoy optimizing systems under constraints. Available on PC, Mac, Linux, and mobile, it’s a single-player brain teaser that’s equal parts frustrating and satisfying.
Each level tasks you with creating a reactor using input/output nodes, conveyor belts, and bonding tools. You drag-and-drop components to route atoms through your factory, ensuring they combine correctly and meet output quotas. The challenge lies in minimizing steps, reducing energy use, and avoiding collisions. Later puzzles introduce hazards like unstable atoms and environmental threats. Sessions often involve backtracking, tweaking layouts, and debugging invisible logic errors. Controls are precise but require a steep learning curve. The game prioritizes depth over accessibility, rewarding players who dissect its systems and think in reverse-engineered workflows.
Metacritic rates it 84/100. 58% of PlayPile users own it, and 33% have completed it. Average playtime is 18 hours, with 42% of players calling it "frustrating" and 38% "rewarding." Completion spikes at levels 15-20, where 67% of players report hitting walls. A top review calls it a "masterpiece of logic puzzles." Achievements are sparse but challenging; the "Certified Engineer" badge (12% unlocked) requires perfect efficiency in a late-game level. 15% of players list it as "satisfying," while 5% deem it "tedious." The difficulty curve is steep, but persistence pays off with eureka moments.
SpaceChem is a niche gem for logic lovers. Its complexity can alienate casual players, but hardcore puzzlers will relish its depth. With no modern price listed, its value depends on your patience for learning obtuse systems. Achievements add replayability, though completion rates suggest many quit before finishing. If you thrive on optimization and don’t mind spending hours reworking a single level, it’s a must-play. But be prepared to fight the game as much as solve it.
Game Modes
Single player
IGDB Rating
83.1
RAWG Rating
3.1
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