Photochemistry

Photochemistry

Thomas Horne · 2024 · Puzzle, Automation, Indie, Atmospheric, Minimalist

PC
Positive100% · 12
Best price
$9.99
lowest tracked $0.99
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Standard Edition · Steam
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About Photochemistry

You stand amidst the ruins of war. The world is running out of nutrients and it's your job to make them. Design. Build. Execute. Restore the world to what it once was. Uncover the truths of your own past.


■ INVENT YOUR OWN SOLUTIONS



No solution is predetermined. Utilize your own creativity and critical thinking to invent a mechanism that has never been made before.

■ UNCOVER YOUR PAST



Every robot has a creator. What were you really designed for? What comes next?

■ EXPAND YOUR TOOLKIT



Unlock new parts which increase the number of ways you can express your creativity and make the most challenging levels manageable.

■ FEATURES



— 20+ levels to test your problem solving skills
— Optional levels to test your limits
— 3 different acts each with their own unique environment and puzzle elements
— A built in recorder to share your solutions as a .gif
— Create your own stages with a built in level editor

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Dec 3, 2024
Photochemistry is an enjoyable puzzle game that can quickly become complex if you overthink your solution, yet that's exactly what makes it so fun! Plus, I absolutely love the art style of the game, it's so simple yet charming.
1 found this helpful
Recommended Nov 4, 2024
I photocame, I photosaw, I photoconquered
1 found this helpful
Recommended Feb 25, 2026
Photochemistry, developed and published by Thomas Horne, is a thoughtfully designed puzzle-simulation game that centers on creativity, logic, and system-based experimentation. Set in a subdued, post-apocalyptic backdrop where plant life struggles to survive due to depleted nutrients, the game frames its mechanics around rebuilding ecological stability through chemical synthesis. Rather than presenting its premise through heavy narrative exposition, it integrates the theme directly into the gameplay: players are tasked with constructing functional machines capable of transforming basic particles into complex compounds that can sustain life. This fusion of scientific abstraction and environmental recovery gives the experience a subtle sense of purpose beneath its mechanical challenges. At its heart, Photochemistry is a construction puzzle game driven by open-ended problem solving. Each level introduces a target chemical output along with a limited set of tools and inputs. Players must design a system that manipulates particles through various devices, connectors, and transformations until the required compound is successfully produced. There is rarely a single prescribed solution; i…
Recommended Mar 11, 2025
Wonderful game. The author understands how puzzles and sandboxes should look. It deserves the same regard as Zachtronics.
Recommended Feb 10, 2025
Puzzles are fun and interesting, Every Puzzle has multiple solutions therefore very re-playable when trying to optimize for time or cost. Good introductory puzzle game for newcomers to the genre.
Recommended Feb 10, 2025
i want to put them in my mouth

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