Last 7 days
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.
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100% positive of 12 · Positive · Live from Steam
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Free on Steam. The demo has its own app, so its players are counted separately.
Photochemistry is a challenging 2D puzzle game about synthesizing chemicals to sustain plant life in a post-apocalyptic setting. Design and construct elaborate mechanisms to produce complex compounds from simple particles.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 100% on 2026-11-01 → 100% today (12 reviews)
No authorized Steam key store lists this game right now.
Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
The Catalyst Update is now available for all players! I'm most likely going to forget a few changes, but here's the ones I can recall: FEATURES - A new act featuring 7 new levels - A new NPC - Simplified Chinese support - 4 new tutorial levels - An Undo button…
Hello everyone! Hope you're having a good Halloween. I'm excited to announce the release date for the upcoming Catalyst Update. The Catalyst Update will release on November 10th, 2024 That's just 10 days away! I hope you'll enjoy the new content as much as I e…
Hello everyone! Hope you're having a good summer. I've been working hard during my free time over the past few months on a new content update for Photochemistry to flesh out the systems and lore of the game. I'm happy to now announce what I've been up to. The …