Alien Swarm: Reactive Drop
2017 · Isometric
82Recommended
95Steam
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.
PlatformsPC
GenreThird-person shooter Action
CameraIsometric
ModesSingle-player Online co-op Multiplayer / PvP
EnglishVoice-over and text
Player score95% · 24 K reviews
Playing now~120 on Steam
Time to beatHowLongToBeat ↗
Release date2017
Steam priceFree
DeveloperReactive Drop Team
PublisherReactive Drop Team
Key tagsTwin Stick Shooter Top-Down Shooter PvE Class-Based Hacking Aliens Level Editor Third-Person Shooter
Major updates
AS:RD Update - April 20, 2025 "Received" · Apr 2025All 4
System requirements
Minimum 2 GB RAM · 7 GB✕Steam Deck UnsupportedMin & recommended
| Minimum | |
|---|---|
| OS | Windows® XP or above |
| Processor | Pentium 4 or newer |
| Memory | 2 GB |
| Graphics | DirectX 9 compatible video card with 128 MB, Shader model 2.0b. ATI X800, NVidia 6600 or better |
| DirectX | 9.0b |
| Storage | 7 GB |
From the game’s Steam store page.



