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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HYP -  New video! Greenlight! Facebook!
Alien Swarm

HYP - New video! Greenlight! Facebook!

Jan 21, 2014 Hypovolemia 4 comments

We working hard to deliver a good 0.2 release. New video. Get your friends and help us achieve 1k likes on our facebook before we release!

Lost Squad Official Trailer Released!
Alien Swarm

Lost Squad Official Trailer Released!

Jan 13, 2014 Lost Squad 1 comment

This article is about new Lost Squad Trailer and about Steam Greenlight too.

The Revenge : About Source Engine 2010.
Game

The Revenge : About Source Engine 2010.

Dec 15, 2013 The Revenge 1 comment

The Revenge : About Source Engine 2010.

Lost Squad - Media Release #1
Alien Swarm

Lost Squad - Media Release #1

Dec 13, 2013 Lost Squad 9 comments

Today we are going to show new media and talk about some news.

Bloodlines Resurgence - Progress Update #1
Alien Swarm

Bloodlines Resurgence - Progress Update #1

Nov 6, 2013 Bloodlines Resurgence 16 comments

A quick overview of the upcoming multiplayer release and the current status of the mod.

Hyp 0.2 Prerelease gameplay!
Alien Swarm

Hyp 0.2 Prerelease gameplay!

Sep 13, 2013 Hypovolemia 8 comments

Hyp is nearing release, we've been busy smashing and gibbing bugs. Here is some gameplay footage for you all.

Swarm Keeper 0.50 Beta released
Alien Swarm

Swarm Keeper 0.50 Beta released

Apr 7, 2013 Swarm Keeper 0 comments

New release of Swarm Keeper! Swarm Keeper is a Dungeon Keeper inspired modification for Alien Swarm (Source Engine).

Greenlight Update #2
INFRA

Greenlight Update #2

Apr 5, 2013 INFRA 2 comments

Where we currently stand on Greenlight and what is coming!

INFRA: now with lead filled zombie action! (APRIL FOOLS!!!)
INFRA

INFRA: now with lead filled zombie action! (APRIL FOOLS!!!)

Mar 31, 2013 INFRA 16 comments

We're currently at 76th position on Greenlight. This blows our mind. Thanks a ton for the votes. However, it's time to move on.

Greenlight Update
INFRA

Greenlight Update

Mar 5, 2013 INFRA 2 comments

This update has information on our current Greenlight status and what to expect from us in the future.

Teaser Trailer and Greenlight
INFRA

Teaser Trailer and Greenlight

Feb 16, 2013 INFRA 10 comments

The promised news is finally here! We introduce our plans moving forward and how you can support INFRA's creation.

The Start of a Few Good Things
Alien Swarm

The Start of a Few Good Things

Feb 7, 2013 Anamorphosis 0 comments

To make a mod like Anamorphosis, I've had to add features to the Source engine, improve what was already there, and go above and beyond what would generally...

Reactive Drop November Update
Alien Swarm

Reactive Drop November Update

Nov 27, 2012 Reactive Drop 0 comments

Added "Gun Game" mode, DM Desert map, created Steam group for scheduling game play events. Team deathmatch is in progress.

November Media Update
INFRA

November Media Update

Nov 26, 2012 INFRA 3 comments

It’s update time! We appreciate our followers who have been waiting patiently while we toil away behind the scenes.

Hyp - Progress 10/18/2012
Alien Swarm

Hyp - Progress 10/18/2012

Oct 18, 2012 Hypovolemia 8 comments

New updates, original soundtrack, maps, models and general progress.

October media update #1
INFRA

October media update #1

Oct 5, 2012 INFRA 3 comments

Another media update. This time also featuring new work in progress gameplay video.

September media update #1
INFRA

September media update #1

Sep 2, 2012 INFRA 6 comments

Summer is over and development continues. INFRA has been under development for over a year now and a lot has been done.

Swarm Keeper 0.45 Beta released
Alien Swarm

Swarm Keeper 0.45 Beta released

Aug 27, 2012 Swarm Keeper 2 comments

Swarm Keeper is a Dungeon Keeper inspired modification for Alien Swarm. This release makes it easier to construct rooms, fixes several bugs, improves...

 Hypovolemia - Update 8/5/2012
Alien Swarm

Hypovolemia - Update 8/5/2012

Aug 6, 2012 Hypovolemia 3 comments

We've been making some big changes to Hypovolemia!

We have a website!
INFRA

We have a website!

Aug 3, 2012 INFRA 9 comments

I'm happy to announce that we have our own website now! Oh, and trees!

Slow development ahead!
INFRA

Slow development ahead!

Jul 8, 2012 INFRA 7 comments

For me and another vital team member Zuntti, mandatory military service is starting soon, so we doesn't have much time to work with this, atleast during...

Swarm Keeper 0.40 Beta released!
Alien Swarm

Swarm Keeper 0.40 Beta released!

Jul 2, 2012 Swarm Keeper 3 comments

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

June media update #1
INFRA

June media update #1

Jun 16, 2012 INFRA 3 comments

Summer is here and it's time to ship another media release. This time we are featuring three different locations, both modern and old, manned and abandoned...

Hypovolemia 0.1 Alpha Release
Alien Swarm

Hypovolemia 0.1 Alpha Release

May 17, 2012 Hypovolemia 17 comments

Hypovolemia Version 0.1 Alpha download now available.

May media update #1
INFRA

May media update #1

May 4, 2012 INFRA 2 comments

The spring is starting to show it's signs and work with the maps continues. Although this update still has screenshots of maintenance tunnels, we have...

March media update #2 - Making Progress
INFRA

March media update #2 - Making Progress

Apr 16, 2012 INFRA 1 comment

Infra feels like it used to and our mappers are doing brilliant work.

March media update #1
INFRA

March media update #1

Mar 30, 2012 INFRA 2 comments

This time both new and old maintenance tunnels and also a currently not so busy metro station.

Hyp March Media Release
Alien Swarm

Hyp March Media Release

Mar 12, 2012 Hypovolemia 3 comments

Lots of new models being made for Hypovolemia. Let's have a look at what's cooking!

ASDM Gameplay Video on Youtube
Alien Swarm

ASDM Gameplay Video on Youtube

Nov 9, 2011 Alien Swarm Director Mod 2 comments

Click the link below to see in game footage of ASDM. I tried to upload it here, but the video was too big.

August Update
Alien Swarm

August Update

Aug 11, 2011 Lylat's Last Stand 5 comments

Small update this month. But it feature some concept art and a short video wip of the fixed 1st person/3rd person player.

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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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