How many people are playing Alien Swarm right now?

7 people are playing Alien Swarm on Steam right now, making it the 7537th most played game on Steam. In the last 24 hours it peaked at 42 players. The number updates every few minutes.

What is Alien Swarm's all-time peak player count?

Alien Swarm's highest concurrent player count on Steam is 60,527, reached in July 2010.

Is Alien Swarm good? What do Steam reviews say?

94% of 21,656 Steam user reviews are positive (Very Positive).

How much does Alien Swarm cost on Steam?

Alien Swarm is free to play on Steam.

Does Alien Swarm work on Steam Deck?

Alien Swarm is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Alien Swarm

by Valve · Released Jul 19, 2010

Steam Deck PlayableLinux & Deck: Gold

Open in Steam＋ Add to list Compare

Players now

#7,537

▼ 75.0%vs 24h ago · updates every minute

Review score

94% positive

Very Positive21,656 reviews

Owners (est.)2M–5M

24h peak

Highest seen60,527

Jul 201016.3 years ago

Price on Steam

Free

RisingSteadyFalling

Players -75.0% in the last 24 hoursUpdated 12:13 UTC · tracking since 2012-07-01

Concurrent players

Last 7 days

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Players onlineSteam sale started

Media & details

Screenshots, achievements, specs and price history from Steam.

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Where to buy

Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.

Steam Official

Prices update every 6 hours

Free

Buy

Other authorized stores

No authorized Steam key store lists this game right now.

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Editions and bundles on Steam

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Reviews

94% positive of 21,656 · Very Positive · Live from Steam

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Steam Deck

Works, but may need extra effort. Results from Valve's own testing.

Steam Deck Playable

!Default controller config not fully functional
!Controller glyphs do not match deck device
!Text input does not automatically invokes keyboard
!Interface text is not legible
!Native resolution not default
✓Default configuration is performant

Steam Deck

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Patches & builds

Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.

Sep 24, 2020, 3:51 AM UTC
Build 5587483the current build when we started tracking2.1 GB on Windows

Patch notes

Aug 18, 2020
PatchAlien Swarm update released
Fixes and Updates Security fixes to client/server file transfers Fixed "Out of thread ids" error when launching Alien Swarm on a computer with 32 or more logical processors Updated localization files
Mar 5, 2013
PatchValve’s artists display digital gallery as part of Steam Community update
Valve are currently beta testing a selection of additions and changes to Steam's Community pages. Not only have they separated out general community activity from your own contributions, and created a Community Home as an all-game version of the Game Hubs, but…
Jul 12, 2012
PatchAlien Swarm Update
- Added latest localization files. - Fixed a crash when viewing the Achievements screen in a non-English language.
Jul 6, 2012
PatchAlien Swarm SDK Update
- Added shader source code. - Matchmaking system supports mods with more than 4 players. - Mods store their config.cfg separately from the base game.
Apr 15, 2011
PatchAlien Swarm Update Released
Updates to Alien Swarm have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include: Alien Swarm * Allow XP gain on custom maps. * Fixed a camera prediction bug. * Added .smd and .qc files for the…
Oct 11, 2010
PatchAlien Swarm Update Released
Updates to Alien Swarm have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include: Alien Swarm * Added TTF font support; * Fixed an engine exploit;

Other news (14)

Oct 16, 2015
The 50 Best Free Games On PC
The best free games are on PC, and if you want to know what the best 50 are then you’ve come to the right place. …
Sep 1, 2015
Have You Played Alien Swarm
Have You Played? is an endless stream of game recommendations. One a day, every day of the year, perhaps for all time. Valve have a game even more forgotten than Ricochet. Despite being only five years old, I bet if I’d asked you to write down all their …
Dec 15, 2014
Mod of the Week: Turn Half-Life 2 into an RTS
MOD OF THE WEEK In  Mod of the Week , Chris Livingston scours the world of user-created adventure for worthy downloads. This week, a mod that turns one of the best shooters ever into an RTS. Lambda Wars (originally HL2 Wars), a real-time strategy set in t…
Dec 9, 2014
Lambda Wars reimagines Half-Life 2 as a real-time strategy game
Half-Life 3 it ain't, but if it's a new Half-Life game you crave then maybe Lambda Wars will do the trick. An RTS spin on the Half-Life universe, Lambda Wars has been kicking around the modding community for a while as HL2: Wars, but now it's absolut…
Oct 17, 2013
Steam Greenlight approves 37 more titles, including Ikaruga, TowerClimb, Steam Marines
Well that was quick. Ikaruga only shot its way onto Steam Greenlight the other day, and it's already emerged from the other end of the Valve's giant approvals machine, covered in a viscous, sticky substance it's probably best not to investigate too strenuously…
Jul 18, 2013
Left 4 Xed? Check Out This Alien Swarm FPS Mod
3761 AD. Seattle. A line of tourists is snaking around a wrecked skyscraper. If we listen closely, we can hear their guide: “… this is the cupboard where they found the ‘test heads’, and this is where they arrested Robin “Mad Hatt…

Patches & builds

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History

What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.

Review score: 94% on 2026-11-01 → 94% today (21,656 reviews)

No changes recorded yet.

History

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Trading cards

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Alien Swarm player count and quick facts

How many people are playing Alien Swarm right now?: 7 people are playing Alien Swarm on Steam right now, making it the 7537th most played game on Steam. In the last 24 hours it peaked at 42 players. The number updates every few minutes.
What is Alien Swarm's all-time peak player count?: Alien Swarm's highest concurrent player count on Steam is 60,527, reached in July 2010.
Is Alien Swarm good? What do Steam reviews say?: 94% of 21,656 Steam user reviews are positive (Very Positive).
How much does Alien Swarm cost on Steam?: Alien Swarm is free to play on Steam.
Does Alien Swarm work on Steam Deck?: Alien Swarm is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Live data from Steam, tracked by SteamPlayerBase.