PC
$0.00 Region US
Mature content
Action · Valve
Alien Swarm
Mature content
Steam Deck Playable Windows
Very Positive · 95% of 21,555
Chip's verdict · US updated 26 days ago Why this verdict
Player reviews 95% positive of 21,555
Metacritic 77
Quality score 90/100
Offers
Accepted regional prices from official stores
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About this game
What this game is, in the developer's words
Co-operative multiplayer game and complete code base available for free.
Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community.
Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an over...
Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an over...
Media
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Latest news
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Price intelligence
Accepted price history and the lows that matter
No price history recorded yet.
Historical lows
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Alien Swarm price history and best deals
Alien Swarm for PC currently sells from free at authorized stores.
Frequently asked questions
Answered from this game's own price and edition data
Where can I buy Alien Swarm?
Alien Swarm is tracked at steam. We only list authorized stores here and always link out with a clean outbound link.
Media (12)
Tech
Steam DeckPlayable
SteamOSSupported
Requirements
Achievements (66)
ASW_TECH_SURVIVES 55.7%
ASW_PARA_HAT 55.2%
ASW_BOOMER_KILL_EARLY 47.4%
ASW_SHIELDBUG 43.2%
ASW_PROTECT_TECH 41.2%
ASW_FAST_RELOAD 40.5%
ASW_WELD_DOOR 38.8%
ASW_MISSION_NO_DEATHS 36.6%
Facts
Links
Languages (1)
English
Ratings
dejus14
igrs18
steam_germany16