Last 7 days · history since Nov 1, 2026
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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100% positive of 2 · 2 user reviews · Live from Steam
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Race through high energy reactors and particle accelerators as the infinitesimal "Mr. Big", riding an ultra-high tech monowheel cycle, collecting particles, conducting experiments, dodging and doing battle with antimatter and radioactive isotopes, solving puzzles, and discovering the Periodic Table.
Live data from Steam, tracked by SteamPlayerBase.
Not tested by Valve yet. Results from Valve's own testing.
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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 (2 reviews)
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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.
Months Of Obsessive QA Are Beginning To Pay Off. Jason here, junior Dev and Designer for Cyclotronica. I've been working on this update for some months now, and learning a lot more about coding along the way. Dad/Randy/Our Senior Dev has been teaching me how t…
Added Sandbox Mode, with our first Lab Bench Item, the Isotope Chamber! Spawn and observe any Element on the Periodic Table. Bombard it with Neutrons and watch it change or transmute. Bombard it with Antineutrons and watch it fall apart. Added 400+ new Isotope…
Thanks y'all. Let me know if you run into anything else. We're working on a couple different PVP/Team levels. Battlebowl/Derby. Also working on Isotope Cascading. Aiming to give Atoms greater autonomy over their behavior.
Happy Equinox! Updated impact physics numbers on the various projectiles in the game including: Alpha Particles Beta Particles Gamma Rays Proton Shot Fast Neutron Lithium-7 Bullets Carbon-14 Electrodes in Tunnels as well. As a result, the behaviors for Uranium…
Updates on Splash Dialog System Added to Splash Shepard's Tone New Game Dialog updated, choice of Tutorial RTFM or Skip Tutorial TL;DR Tutorial Reinstated Properly, per Beta Tester Feedback Text edits galore, formatted for better readability and organization. …
Got the last of the UI basics worked in. Dialog Box System, Specimen Insets, Improved catalog workflow at the end of missions. Minor UI bugfixes. Got quints on the internal build commit number. #6377777
That's right! Now you too can own every Isotope ever!