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Alien Swarm

Alien Swarm

Worth buying? What 300 Steam reviews say.

Very Positive · 96%2010

The verdict

A free, polished Valve co-op top-down shooter that shines with friends but has one short campaign and a nearly dead playerbase. Skip it if you play solo; Reactive Drop is the better pick.

Great for

Small groups of friends wanting a free, tactical co-op alien shooter for a few evenings

Main risk

Dead online community and co-op-only missions leave you unable to play without friends

What players love

What players complain about

System requirements

Steam Deck: Playable
OSWindows® 7 / Vista / Vista64 / XP
ProcessorPentium 4 3.0GHz
Memory1 GB for XP / 2GB for Vista
GraphicsDirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
StorageAt least 2.5 GB of free space

Analyzed Oct 5, 2026  ·  300 reviews

150 positive, 150 negative

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