Is Alien Swarm: Reactive Drop co-op?

Yes, Alien Swarm: Reactive Drop supports co-op.

Does Alien Swarm: Reactive Drop have PvP?

Yes, Alien Swarm: Reactive Drop has player-versus-player modes.

How many people play Alien Swarm: Reactive Drop?

About 179 players were in-game when this page was built (2026-09-08).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Shooter › Co-op horde shooter

Is Alien Swarm: Reactive Drop multiplayer or co-op?

Yes — co-op and PvP. Alien Swarm: Reactive Drop is a co-op horde shooter game released in 2017, 95% positive on Steam (22,649 reviews), with 179 playing right now. Free on Steam.

Co-opPvPSingle-player tooShooter · Co-op horde shooter

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.

Steam tags: Twin Stick Shooter, PvE, Top-Down Shooter, Co-op, Class-Based, Third-Person Shooter, Aliens, Level Editor

Do you and a friend both own Alien Swarm: Reactive Drop?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Alien Swarm: Reactive Drop is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Compare our libraries Steam store page

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Tired of Alien Swarm: Reactive Drop? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Alien Swarm: Reactive Drop co-op?: Yes, Alien Swarm: Reactive Drop supports co-op.
Does Alien Swarm: Reactive Drop have PvP?: Yes, Alien Swarm: Reactive Drop has player-versus-player modes.
How many people play Alien Swarm: Reactive Drop?: About 179 players were in-game when this page was built (2026-09-08).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; updated 2026-09-08. Powered by Steam — not affiliated with or endorsed by Valve Corporation.