Alien Swarm is an overhead view tactical squad-based shooter for UT2K4. Set in the the distant future, the players take the role of a Commander in the Interstellar Armed Forces. They must guide their squad of marines through Swarm infested colonies, overrun bases and outposts, to achieve a variety of objectives.

Alien Swarm features:

  • Unique blend of action and strategy.
  • 1-8 players co-operative play.
  • Single mission or Campaign mode.
  • Large array of equipment for your marines, including Assault rifles, Shotguns, SynTek SmartEye Autoguns, Flamethrowers, Pistols, Incendiary Mines, Flares, Stim Packs, Ammo Bags, Sentry Guns, Medkits and more!
  • Four marine classes: Explosives, Special Weapons, Medic and Technical
  • Skill and experience system allowing your marines to improve as they progress through the campaign.

  • Full tutorial to teach you how to play and to use the equipment at your disposal.
  • 8 unique marines with portaits, personality, skills and background.
  • Easy to use emote system for team communication.
  • Full character speech for each marine which adapts to the current situation.
  • Alien parasites which infest your marines and hatch from inside them.
  • A variety of mission objectives.
  • High scores, kill records and medals.
  • A range of difficulty settings and unlockable map variations.
  • Leader and voting system for online play.
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Blog RSS Feed Report abuse Latest News: Alien Swarm: Phalanx Campaign

0 comments by Dalai on Jul 1st, 2005

MjrHuRTz has just released the Phalanx Campaign for Alien Swarm! Alien Swarm is a co-operative squad-based tactical shooter from Black Cat Games, built on top of UT2004. The Phalanx Campaign gives you 6 new missions, ranging from a Greenhouse facility to heavily infested living quarters.

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Head on over to the Alien Swarm site for more details and screenshots!

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AlienSwarm 1.3 to 1.34 Patch zip

AlienSwarm 1.3 to 1.34 Patch zip

Apr 2, 2011 Patch 0 comments

Alien Swarm 1.34 Patch 31st January 2010 Here's a small patch which adds widescreen support to Alien Swarm: * Widescreen resolutions available in the...

Alien Swarm v1.32 Patch

Alien Swarm v1.32 Patch

Oct 27, 2009 Full Version 0 comments

This patch requires Alien Swarm 1.3 or 1.31 to already be installed. To upgrade, extract this patch .zip to your UT2004 folder.

Alien Swarm v1.3

Alien Swarm v1.3

Oct 27, 2009 Full Version 2 comments

Alien Swarm requires UT2004 (if you're looking for the recently announced Alien Swarm: Infested, that is still in development. Stay tuned to the site...

Post comment Comments  (0 - 10 of 67)
Laha_Slayer Dec 27 2013, 2:55pm says:

i like the mod better just for the fact that it doesn't lag like my computer up like the retail version does

+1 vote     reply to comment
Raygoza Mar 23 2012, 5:17am says:

I need to ask, should i get this game on steam or not to be able to playthis mod?

+2 votes     reply to comment
infurnus May 16 2012, 7:48am replied:

They're both good. The Steam one is a separate game, almost like a sequel of sorts. If you have UT2004 the mod is worth checking out, it has its own maps and stuff.

+1 vote     reply to comment
ThisIsVegas Apr 29 2011, 7:56am says:

Alien Swarm is best UT2004 Mod ever

+3 votes     reply to comment
PurpleGaga27 Sep 6 2011, 1:26pm replied:

I agree this as one of the best UT2004 mods ever. This mod is way better than Valve's version of Alien Swarm.

+3 votes     reply to comment
POORBOY13 May 10 2012, 7:43am replied:

jsyk... "valve's version" of Alien swarm was developed by the same team of people.... =.=

+4 votes     reply to comment
Guest Nov 11 2014, 2:45pm replied:

This comment is currently awaiting admin approval, join now to view.

airknightjr Mar 10 2011, 7:26pm says:

arg... i forgot what to do after i download where do i put the file?

+2 votes     reply to comment
Chaplain_Alphitas Apr 4 2011, 10:36pm replied:

Should just have to put the entire folder named 'Alien Swarm' into the UT2004 folder and it should work fine from there.

+2 votes     reply to comment
undeadbobop Feb 1 2011, 3:40pm buried:


wow valve stole this...
that is probably why its free

-6 votes     reply to comment
defragen1 Mar 23 2012, 4:18am replied:

derp, the people that made this mod got hired by valve

+6 votes     reply to comment
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Released Jun 30, 2005
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