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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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 3 · 3 user reviews · Live from Steam
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ATOMIC GUARDIANS is a fully CO-OP arcade retro shoot 'em up, where one player flies the ship, and the other player mans the shields. Fight your way through a never ending horde of Brutal Bosses, Alien Monsters and Gigantic Asteroids as you rack up a new world-wide high score. Play with up to three friends, and see how long you can last!
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 (3 reviews)
No authorized Steam key store lists this game right now.
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.
Hi Guardians! Small internal Quality of life update -- adds a discoloration to the turret when it can't fire, so it's more obvious when it is able to fire again. Thanks! Mosh Jason
Hi Guardians! We noticed a very specific instance where it was possible to crash the game, and were able to successfully patch that out. We also rebalanced the initial encounters, so the game's slow start isn't quite as slow. Thanks, and good luck! Mosh Jason
Hi Guardians -- SO this update has a few things that it is changing: 1st -- Increased the difficulty once you loop past the final boss. Now instead of facing the same exact bosses, you will fight a remixed version in the second loop -- these will be a lot more…
Identified a bug with the first boss that occurs if steam overlay was hit too many times in a row. Should be fixed now.
Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.