Where to buy
No live listings
No store is currently listing this game.
We only show prices a provider actually returned — never a placeholder.
Price history
Observed by GamePrice
Not enough observations yet. History starts the first time we see this game and grows from there — we never back-fill a price we did not record.
Players
Concurrent Steam players · sampled just now
Playing now
72
24h peak
72
7d peak
72
From the developer
Official Steam announcements for this game
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 share and the usual week of double experi...
5mo ago
Coming Soon: Steam PvP Fest 2026
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...
8mo ago
AS:RD Update - November 1, 2025 "Cone of Fire"
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....
About
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.