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 overrun, off-world colony, eradicating the alien infestation in environments ranging from the icy planet's surface, to a subterranean lava-flooded mining facility.

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Added | Game Name | Type
Alpha Version: 0.2
Alien Swarm

Alpha Version: 0.2

Jul 20, 2010 Infested Office Full Version (3.30mb) 1 comment

The first map of the map pack! Double click the unzipped file to install the addon, then make sure to enable it in game in the settings menu and you are...

Alien Swarm: The Spaceship
Alien Swarm

Alien Swarm: The Spaceship

Aug 13, 2010 Alien Swarm Full Version (1.82mb) 7 comments

A map I have released. I really do hope you enjoy this as much as I have made it.

Alien Swarm: The Spaceship map 2
Alien Swarm

Alien Swarm: The Spaceship map 2

Aug 14, 2010 Alien Swarm Full Version (0.02mb) 7 comments

The second map to The Spaceship. I am thinking of doing a mod using Alien Swarm. I'll think about it. So far I am making maps for pure enjoyment.

AS:SP V Beta 0.3
Alien Swarm

AS:SP V Beta 0.3

Mar 17, 2011 Alien Swarm:SP Full Version (15.25mb) 3 comments

This is version 0.3 beta of Alien Swarm SP. Blah blah blah....

Brawl Busters
Alien Swarm

Brawl Busters

Sep 13, 2011 Brawlers Full Version (238.09mb) 4 comments

Brawl Busters, an online multiplayer action combat game, brings a brand new free-to-play experience to PC gamers from all over the world. Featuring innovative...

Alien Swarm Director Mod - Beta 0.1
Alien Swarm

Alien Swarm Director Mod - Beta 0.1

Oct 3, 2011 Alien Swarm Director Mod Full Version (19.64mb) 0 comments

This is a public beta for ASDM! Please note: in order to play you must have both the Alien Swarm AND Alien Swarm - SDK installed. Both are free on steam...

Alien Swarm Director Mod - Beta 0.2
Alien Swarm

Alien Swarm Director Mod - Beta 0.2

Oct 12, 2011 Alien Swarm Director Mod Full Version (28.17mb) 1 comment

This is version 0.2 public beta for ASDM! This version fixes several problems with doors and adds a new room. Additionally, level generation has been...

Alien Swarm Director Mod - Full Release v 1.0
Alien Swarm

Alien Swarm Director Mod - Full Release v 1.0

Nov 3, 2011 Alien Swarm Director Mod Full Version (26.88mb) 7 comments

Alien Swarm Director Mod full release 1.0! 5 mission campaign with 4 missions built dynamically for ultimate replayability! And ASDM responds to player...

Brawl Busters Open Beta client
Alien Swarm

Brawl Busters Open Beta client

Nov 14, 2011 Brawlers Full Version (268.38mb) 3 comments

The game update features two new modes, all new weapons and cool, never-before-seen outfits. The website will also receive an update that will allow players...

ASDK Version 1.0
Alien Swarm

ASDK Version 1.0

Mar 14, 2012 Alien Swarm SDK Template Conversion Full Version (243.83mb) 1 comment

The latest version of the ASDK. This features ALL from the SDK Template inside Alien Swarm, to re-define what you need; simple edit the shareddef's file!

ASDK - SourceMod Files (Alpha)
Alien Swarm

ASDK - SourceMod Files (Alpha)

Mar 17, 2012 Alien Swarm SDK Template Conversion Full Version (45.30mb) 1 comment

The files you need for SourceMods directory in order to make your game use the ASDK source code. This basically is Alpha because it's ripped directly...

IAF Weapon Drop v1.1
Alien Swarm

IAF Weapon Drop v1.1

Mar 29, 2012 IAF Weapon Drop Full Version (0.42mb) 3 comments

First public version of mod- packed in zip. Contain VPK with mod files and more detailed changelog. IMPORTANT- REMEMBER IF YOU WANT TO PLAY WITH OTHERS...

Hypovolemia 0.1 Alpha
Alien Swarm

Hypovolemia 0.1 Alpha

May 16, 2012 Hypovolemia Full Version (367.52mb) 10 comments

Hypovolemia 0.1 Alpha has been released! Come and get it! EDIT: 12/8/2013 this verison no longer works, don't download it

Swarm Keeper 0.45 Beta ZIP
Alien Swarm

Swarm Keeper 0.45 Beta ZIP

Aug 26, 2012 Swarm Keeper Full Version (211.41mb) 0 comments

A minor update this time. This update makes it easier to create rooms, fixes several bugs and contains various optimizations.

Swarm Keeper 0.45 Beta EXE
Alien Swarm

Swarm Keeper 0.45 Beta EXE

Aug 26, 2012 Swarm Keeper Full Version (211.92mb) 0 comments

A minor update this time. This update makes it easier to create rooms, fixes several bugs and contains various optimizations.

Swarm Keeper 0.50 7z
Alien Swarm

Swarm Keeper 0.50 7z

Apr 7, 2013 Swarm Keeper Full Version (180.22mb) 0 comments

New version of Swarm Keeper. Non explored parts of the map are now made full black, three new spells, selected blocks for digging are now glowing green...

Swarm Keeper 0.51 7z
Alien Swarm

Swarm Keeper 0.51 7z

Apr 13, 2013 Swarm Keeper Full Version (162.86mb) 1 comment

Minor bug fix release to resolve a potential crash for some users.

Rifle Mod Server
Alien Swarm

Rifle Mod Server

Apr 4, 2014 Alien Swarm Rifle Mod Full Version (2.00mb) 0 comments

A number of fixes and features were added into Rifle Mod. You can now play the original Alien Swarm by typing rm_challenge 0 in console. You also can...

Reactive Drop 1.04
Alien Swarm

Reactive Drop 1.04

Apr 9, 2014 Reactive Drop Full Version (1,046.10mb) 2 comments

Full version. Extract archive into sourcemods. Core features are 8 players support, Rifle Mod features, PvP game modes.

Alien Swarm Campaign BETA
Alien Swarm

Alien Swarm Campaign BETA

Aug 2, 2010 Alien Swarm Demo (20.34mb) 9 comments

A beta of my Alien Swarm campaign, Housle cleaning. Please list bugs in comments. TO INSTALL: go to your alien swarm folder and drop the unzipped file...

Alien Swarm Aliens Mod 0.9
Alien Swarm

Alien Swarm Aliens Mod 0.9

Nov 1, 2010 Alien Swarm Aliens Mod Demo (5.45mb) 8 comments

this includes: 4 weapon sounds, smartgun, pulse rifle, desert eagle, smg. motion tracker. swarms now sound exactly like xenomorphs. makes almost ALL of...

Swarm Keeper Alpha 0.1
Alien Swarm

Swarm Keeper Alpha 0.1

Jun 4, 2012 Swarm Keeper Demo (186.63mb) 1 comment

Swarm Keeper is a Dungeon Keeper inspired modification for Alien Swarm.

Swarm Keeper 0.25
Alien Swarm

Swarm Keeper 0.25

Jun 10, 2012 Swarm Keeper Demo (182.38mb) 0 comments

Swarm Keeper 0.25 - a Dungeon Keeper inspired Source Engine mod for Alien Swarm.

Swarm Keeper 0.30
Alien Swarm

Swarm Keeper 0.30

Jun 25, 2012 Swarm Keeper Demo (145.16mb) 0 comments

Minor bug fix release. Fixes randomly broken animations and moves dropping items/creatures to the right mouse button.

Swarm Keeper 0.40 Beta ZIP
Alien Swarm

Swarm Keeper 0.40 Beta ZIP

Jul 2, 2012 Swarm Keeper Demo (138.36mb) 0 comments

This release introduces a new HTML based UI and some major performance improvements for larger maps and dungeons.

Swarm Keeper 0.40 Beta EXE
Alien Swarm

Swarm Keeper 0.40 Beta EXE

Jul 2, 2012 Swarm Keeper Demo (138.61mb) 0 comments

This release introduces a new HTML based UI and some major performance improvements for larger maps and dungeons.

Reactive Drop 1.04 to 1.07 Patch
Alien Swarm

Reactive Drop 1.04 to 1.07 Patch

Apr 16, 2014 Reactive Drop Patch (68.37mb) 0 comments

Extract archive into sourcemods. Requires 1.04 or higher version installed.

Source Multi-Tool 1.0
Half-Life 2

Source Multi-Tool 1.0

Nov 23, 2013 Garrys Mod Mapping Tool (0.91mb) 3 comments

I've been working away at this for quite awhile now and after many revisions I'm happy to release version 1.0 of the new Source Multi-Tool. Source Multi-Tool...

Swarm Tactics 0.5 Readme
Alien Swarm

Swarm Tactics 0.5 Readme

Sep 23, 2010 Alien Swarm: The Darkness Tutorials (0.00mb) 2 comments

SwarmTactics 0.5 readme (also includes The Darkness 0.5 in this version)

The Darkness Beta 0.35
Alien Swarm

The Darkness Beta 0.35

Aug 30, 2010 Alien Swarm: The Darkness Other (18.45mb) 2 comments

The Darkness Beta 0.35 Installation Media Download this Self Extracting Archive to Install.

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Alien Swarm
Platform
Windows
Developer & Publisher
Valve
Engine
Source
Contact
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Official Page
Alienswarm.com
Release Date
Released Jul 18, 2010
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Size
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Downloads
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AS:SP V Beta 0.3
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Reactive Drop 1.04
Reactive Drop 1.04 Full Version (1,046.10mb)
Hypovolemia 0.1 Alpha
Hypovolemia 0.1 Alpha Full Version (367.52mb)
ASDK Version 1.0
ASDK Version 1.0 Full Version (243.83mb)
Swarm Tactics 0.5 Readme
Swarm Tactics 0.5 Readme Tutorials (0.00mb)
Source Sauce
Source Sauce Plugin (0.25mb)
The Darkness Beta 0.35
The Darkness Beta 0.35 Other (18.45mb)
Rifle Mod Server
Rifle Mod Server Full Version (2.00mb)
Alien Swarm: The Spaceship map 2
Alien Swarm: The Spaceship map 2 Full Version (0.02mb)
Swarm Keeper 0.40 Beta EXE
Swarm Keeper 0.40 Beta EXE Demo (138.61mb)
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