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Steam

Alien Swarm: Reactive Drop

Also known as Alien Swarm: Reactive Drop, alien swarm reactive drop, alien-swarm-reactive-drop

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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Last update

21 May 2026

Latest update

Patch notesPublished 20 Apr 2026

AS:RD Update - April 20, 2026 "Going Up"

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…

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Update history

Browse past updates and patch notes for this game.

20 updates

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