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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Half-Life 2: Wars v0.5 ZIP

Half-Life 2: Wars v0.5 ZIP

Lambda Wars Full Version 14 comments

This is the zip archive version of the latest HL2:Wars release, v0.5. Please be sure to uninstall any previous versions prior to installation.

Half-Life 2: Wars v0.5 EXE

Half-Life 2: Wars v0.5 EXE

Lambda Wars Full Version 58 comments

EXE version of the 0.5 release of Half-Life 2: Wars. Please ensure you have uninstalled any previous versions of HL2:Wars before running it.

Half-Life 2: Wars Beta 0.5 SOURCE CODE

Half-Life 2: Wars Beta 0.5 SOURCE CODE

Lambda Wars Source Code 9 comments

This is the source code for HLW v0.5, our July 2008 public beta release. The game executable is not included, only the modification's raw source files...

Alpha Version: 0.2

Alpha Version: 0.2

Infested Office Full Version 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 Campaign BETA

Alien Swarm Campaign BETA

Demo 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: The Spaceship

Alien Swarm: The Spaceship

Full Version 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: The Spaceship map 2

Full Version 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.

The Darkness Beta 0.35

The Darkness Beta 0.35

Alien Swarm: The Darkness Other 2 comments

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

Swarm Tactics 0.5 Readme

Swarm Tactics 0.5 Readme

Alien Swarm: The Darkness Tutorials 2 comments

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

Swarm Tactics 0.5 7z Download

Swarm Tactics 0.5 7z Download

Alien Swarm: The Darkness Other 0 comments

Swarm Tactics 0.5 7z Download: The readme file is also available for download in the Downloads section.

Swarm Tactics 0.5 Zip Download:

Swarm Tactics 0.5 Zip Download:

Alien Swarm: The Darkness Other 0 comments

Swarm Tactics 0.5 Zip Download: The readme file can be found in the downloads section.

Alien Swarm Aliens Mod 0.9

Alien Swarm Aliens Mod 0.9

Alien Swarm Aliens Mod Demo 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...

Half-Life 2: Wars Beta 1.0.3 ZIP

Half-Life 2: Wars Beta 1.0.3 ZIP

Lambda Wars Full Version 4 comments

ZIP version of the client installer for the Beta 1.0.3 of HL2: Wars.

Half-Life 2: Wars Beta 1.0.3 FULL - Client EXE

Half-Life 2: Wars Beta 1.0.3 FULL - Client EXE

Lambda Wars Full Version 20 comments

EXE installer for the Half-Life 2: Wars Beta 1.0.3 client.

Half-Life 2: Wars Beta 1.0.4 PATCH ZIP

Half-Life 2: Wars Beta 1.0.4 PATCH ZIP

Lambda Wars Patch 4 comments

ZIP version of the client installer for the Beta 1.0.4 PATCH of HL2: Wars.

Half-Life 2: Wars Beta 1.0.4 PATCH EXE

Half-Life 2: Wars Beta 1.0.4 PATCH EXE

Lambda Wars Patch 13 comments

EXE version of the client installer for the Beta 1.0.4 PATCH of HL2: Wars.

AS:SP V Beta 0.3

AS:SP V Beta 0.3

Alien Swarm:SP Full Version 4 comments

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

Bloodlines Resurgence Demo Installer 1.0.1.4

Bloodlines Resurgence Demo Installer 1.0.1.4

Bloodlines Resurgence Demo 6 comments

This installer converts your original version of the game into the latest Source engine with various working maps as demonstration of the mod. The installer...

Source Sauce

Source Sauce

Plugin 26 comments

A simple Out-Of-Game Tool that let's you set options for multiple Source Games at once, and even let's you set options that are not normally available...

Brawl Busters

Brawl Busters

Brawlers Full Version 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 Director Mod - Beta 0.1

Alien Swarm Director Mod Full Version 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 Director Mod - Beta 0.2

Alien Swarm Director Mod Full Version 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 Director Mod - Full Release v 1.0

Alien Swarm Director Mod Full Version 8 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

Brawl Busters Open Beta client

Brawlers Full Version 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

ASDK Version 1.0

Alien Swarm SDK Template Conversion Full Version 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)

ASDK - SourceMod Files (Alpha)

Alien Swarm SDK Template Conversion Full Version 2 comments

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

IAF Weapon Drop v1.1

IAF Weapon Drop Full Version 4 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

Hypovolemia 0.1 Alpha

Hypovolemia Full Version 11 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 Alpha 0.1

Swarm Keeper Alpha 0.1

Swarm Keeper Demo 1 comment

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

Swarm Keeper 0.25

Swarm Keeper 0.25

Swarm Keeper Demo 0 comments

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

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Alien Swarm
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