Is Alien Swarm: Reactive Drop free?

Yes — Alien Swarm: Reactive Drop is free to play, so you can install and play it without buying anything.

Does Alien Swarm: Reactive Drop work on Steam Deck?

Valve rates Alien Swarm: Reactive Drop Unsupported on Steam Deck, which means some or all of it does not currently work there.

Can I play Alien Swarm: Reactive Drop on Mac?

Not natively — Steam lists no macOS version of Alien Swarm: Reactive Drop. Mac players would need a cloud gaming service or a Windows compatibility layer.

Does Alien Swarm: Reactive Drop have co-op?

Yes — Steam lists Alien Swarm: Reactive Drop with online co-op, LAN co-op.

Is Alien Swarm: Reactive Drop on PC Game Pass?

No — Alien Swarm: Reactive Drop is not on PC Game Pass right now.

Alien Swarm: Reactive Drop

Name: Alien Swarm: Reactive Drop
Brand: Reactive Drop Team
Availability: InStock

Reactive Drop Team · April 20, 2017 · Twin Stick Shooter, PvE, Co-op, Top-Down Shooter, Class-Based

Alien Swarm: Reactive Drop is free to play — no purchase needed. We track it so you know if that ever changes.

Co-op deals

Very Positive95% · 23,84374playing now

Best price

Free

Get it free on Steam

This game is free to play. Get it on Steam →

Screenshots

Alien Swarm: Reactive Drop price

Alien Swarm: Reactive Drop is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Alien Swarm: Reactive Drop

✦ AI summary

Lead a squad of up to 8 players in intense top-down tactical co-op combat against alien hordes across new campaigns, PvP modes, and challenge variations. Steam Workshop integration lets the community create endless maps and modifications, while expanded arsenals, new enemy types, and improved bots keep the action fresh whether you're playing solo, co-op, or competitive.

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.

Alien Swarm: Reactive Drop — game info

Platforms: Windows
Steam Deck: Unsupported
Player modes: Single-player, Online PvP, Online co-op, LAN
Controller: Full controller support
PC Game Pass: Not included

More games like this:Games with full controller support

Alien Swarm: Reactive Drop in the rankings

#32 best rated Steam game of 2017

Alien Swarm: Reactive Drop — questions & answers

Is Alien Swarm: Reactive Drop free?: Yes — Alien Swarm: Reactive Drop is free to play, so you can install and play it without buying anything.
Does Alien Swarm: Reactive Drop work on Steam Deck?: Valve rates Alien Swarm: Reactive Drop Unsupported on Steam Deck, which means some or all of it does not currently work there.
Can I play Alien Swarm: Reactive Drop on Mac?: Not natively — Steam lists no macOS version of Alien Swarm: Reactive Drop. Mac players would need a cloud gaming service or a Windows compatibility layer.
Does Alien Swarm: Reactive Drop have co-op?: Yes — Steam lists Alien Swarm: Reactive Drop with online co-op, LAN co-op.
Is Alien Swarm: Reactive Drop on PC Game Pass?: No — Alien Swarm: Reactive Drop is not on PC Game Pass right now.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Oct 9, 2026

SAS4 Remake,Doom 1st person,L4D2 interface, what more could you ask for :D

Recommended Oct 8, 2026

classic lan party game

Recommended Oct 6, 2026

Thought that it would be nice to play this in first person and then found out that there is even an option like that. Missions take short amount of time like 5 - 10 minutes but of course after playing many missions and restarting missions you see that hours have already passed. Very nice game, especially in coop.

Recommended Oct 6, 2026

sew gud

Recommended Oct 6, 2026

i remember dunking so many hours into this game

Recommended Oct 2, 2026

The menu is beautiful

Community reviews

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