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▲ 115.9%vs 24h ago · updates every minute
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94% positive of 23,888 · Very Positive · Live from Steam
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Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.
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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: 94% on 2026-11-01 → 94% today (23,888 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.
Latest changes. Probably broken.
It's time once again for Alien Swarm: Reactive Drop's birthday. We're having a smaller one this year since a lot of our core contributors have been busy with other projects, but we've still got a lot of improvements to share and the usual week of double experi…
Highlights Added a SynTek Residential themed main menu background. The camera feeds that display behind briefing have less static and are less distracting. Many guns are now more accurate while crouching. Weapons Weapon recoil has been changed on several guns.…
A minor update has been released for Alien Swarm: Reactive Drop. Fixed a client crash in the Traitors game mode. Added a note in the Swarmopedia about the IAF Medical SMG's increased accuracy while crouching. Added a description for EC-02 Stun Grenades in the …
Fixed black bars appearing on the sides of the screen for screen resolutions with an aspect ratio wider than 16:9.Fixed traitor players showing as having 99 player kills in the scoreboard.Fixed buzzers bleeding red blood on the client.
Special thanks to Dmitriy, Mithrand, jhheight, 法克尤尔马泽尔, and Grimowy for the majority of the changes in this update. New Game Mode: "Traitors!" Commander, As the human shield, the IAF has achieved great victories in countless battles against the swarm, but also…
Added rd_lobby_query_servers convar (default 0 until the problem with the Steam API is fixed) to disable server list queries, which are currently not being properly filtered to just Alien Swarm: Reactive Drop servers by the Steamworks API.Note: This means that…
Every year, Valentines day is a time to be with friends and loved ones and reflect on your friendship and love. Well, not this year! In 2026, it's all about having simulated gun fights with friends and loved ones. Welcome to Steam PvP Fest 2026. There's nothin…
It's that time of the year again. The anniversary of Alien Swarm: Reactive Drop's Steam release. As always, Alien Swarm: Reactive Drop is only possible due to contributions from community volunteers in the form of donations, code, translations, and game conten…
It's Alien Swarm: Reactive Drop's 7th birthday, which means it's time for our second annual mapping competition! The theme this year is Space Station. Create a standalone mission (of any type) that takes place on a space station or other large spaceship. Here …
Does not work on Steam Deck. Results from Valve's own testing.