Alien Swarm on Steam - User reviews, Price & Information

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Co-operative multiplayer game and complete code base available for free.

Alien Swarm is a free to play, co-op and action game developed and published by Valve.
Released on July 19th 2010 is available in English only on Windows.

It has received 21,274 reviews of which 20,179 were positive and 1,095 were negative resulting in an impressive rating of 9.3 out of 10. 😍

The game is free to play on Steam.

The Steam community has classified Alien Swarm into these genres:

Free to Play Co-op Action Multiplayer Online Co-Op Aliens Shooter Sci-fi Top-Down Top-Down Shooter Survival PvE Class-Based Third Person Team-Based Third-Person Shooter Moddable Singleplayer Strategy Adventure

Media & Screenshots

Get an in-depth look at Alien Swarm through various videos and screenshots.

Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot
Alien Swarm screenshot

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • OS *: Windows® 7 / Vista / Vista64 / XP
  • Processor: Pentium 4 3.0GHz
  • Memory: 1 GB for XP / 2GB for Vista
  • Graphics: DirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
  • Hard Drive: At least 2.5 GB of free space
  • Sound: DirectX 9.0c compatible sound card

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

Feb. 2017
What a beautiful piece of art this is, one of the better Free to Play games. The game would've been perfect if it supported Workshop. :) Definitely a game you can sink a bunch of hours into with friends!
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Feb. 2017
If you are looking for an action shooter with team cooperation where mindless running will get you killed this is a game for You. On most dificulties the games enemies coming in waves enforce cooperation. Fireing lanes start to matter and even when you are not on point but securing the back You feel like Your job matters. The game offers 8 marines to pick from. A pair of each of 4 archetypes. The medic, whos main role is to heal any damage and cure infestations. The Autogunner whos there to push the group forward or to set up supressing fire defending the group. The demolitions marine is best suited to dealing with heavier targets with the use of flamethrowers, mines grenades fire traps and the mean end of a shotgun. Finaly theres the technician for those who want to make the missions easier by welding doors and hacking security and objectives. Individual skill is rewarded with all of these archetypes without the loss of sense of benefiting from the teamwork of entire group. The setting pays hommage to classic movies and games of the alien franchise yet remains its own kind of alien style with a bit more arcade look. The topdown camera gives a more tactical feel for the gameplay in comparission to first person. Each marine has his own quips and oneliners, and character. Since its free i cannot see how you wouldnt recommend it.
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Jan. 2017
This is one of those rare game's that you can replay without it feeling dull the second time. And weapon progress is nice and seen its f2p you have to try it its really worth your time. Its just good give it a try
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Jan. 2017
Positives It's free. You kill alien bugs. Replayability with different weapons, and characters, or difficulties. Achievements make you feel like you achieved something. (Hah) Negatives Died again! Again! Gah!
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Jan. 2017
WAIT! For those that dont know, which is likely most of you because it's kind of underground. There is a BETTER SECOND GAME coming out this year!! Just a heads up for the Alien Swarm fans. It is expected to be released early this year! If you liked the first or maybe haven't tried it, now's the time to decide. You've got nothing to lose
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Frequently Asked Questions

Alien Swarm is free to play on Steam.

Alien Swarm is not on sale because is already free to play on Steam.

Alien Swarm received 20,179 positive votes out of a total of 21,274 achieving an impressive rating of 9.26.
😍

Alien Swarm was developed and published by Valve.

Alien Swarm is playable and fully supported on Windows.

Alien Swarm is not playable on MacOS.

Alien Swarm is not playable on Linux.

Alien Swarm offers both single-player and multi-player modes.

Alien Swarm includes Co-op mode where you can team up with friends.

Alien Swarm does not currently offer any DLC.

Alien Swarm does not support mods via Steam Workshop.

Alien Swarm does not support Steam Remote Play.

Alien Swarm does not currently support Steam Family Sharing.

You can find solutions or submit a support ticket by visiting the Steam Support page for Alien Swarm.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 08 June 2025 06:15
SteamSpy data 11 June 2025 12:37
Steam price 08 June 2025 06:15
Steam reviews 13 June 2025 11:57

If you'd like to dive deeper into the details about Alien Swarm, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Alien Swarm
  • SteamCharts - Analysis of Alien Swarm concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Alien Swarm compatibility
Alien Swarm
Free to play
9.3
20,179
1,095
Game modes
Multiplayer
Online players
29
Developer
Valve
Publisher
Valve
Release 19 Jul 2010
Platforms
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