Steam reviews
Very Positive
95% of 23,527 reviews
LiveSmall but alive
ALIEN SWARM: REACTIVE DROP
Alien Swarm: Reactive Drop has 218 concurrent players on Steam right now. Its 24 hour peak is 218 and its all-time peak is 218. Data refreshes every 5 minutes from the official Steam Web API.
DEV · Reactive Drop Team2017
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.
- Niche but breathing. Best chance to find others at peak hours.
- Currently at 100% of the all-time peak of 218 players.
- Last updated 4 weeks ago: AS:RD Update - April 20, 2026 "Going Up".
Playing now
218
24h peak
218
24h change
▲ 0.0%
PREVIOUS 24 HOURS
Chart fills in once we have a few hours of data. Check back soon.
GALLERY & TRAILERS
1 / 26
ACROSS PLATFORMS
STEAMLIVE
Current
218
24h peak
218
All-time
218
TWITCHLIVE · VIEWERS
Watching now
No live streams
Nobody is streaming this game on Twitch right now.
Xbox · PlayStation · Nintendo
No public concurrent-player API exists for these platforms. Other sites guess by scraping achievement timestamps or leaderboards. We won’t make up numbers. If the platforms ever ship a real API, real numbers will show up here.