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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Great followers of Hypovolemia.

This is what you can expect in HYP 0.5

( We are no longer calling this version 0.2 )

- Many guns have been added.

- Handgun model blowback animations.

- Optimized server-side ragdolls for faster networking, as a result - ragdolls now appear to move faster, suddenly and more violently.

Curb stomping is now a possible method of execution, by repeatedly jumping on top of incapacitated bodies! *death by trampling is possible

- Character Randomization

In Free For All, everytime you spawn, a random model will be picked for your character. Skin and body groups are randomly chosen.

While in Team-Based-Modes the randomization is more narrowly set for each Faction.

- Networked inventory system.

  • Ammo and ammo containers are now accurately weighed. Asymmetric balancing with US and RUS faction. Accounting for "Firepower and Less ammo" vs "Fire Rate and More ammo" dynamics.

Firing heavy caliber or grenade based weapons will now noticeably decrease weight per shot.

- Improved sound

  • new custom recorded footsteps sounds for all default materials.

  • increased the amount of custom surface props materials for variety.
  • Bullet whizz sounds if tracers near miss you. * sounds made already
  • Bullet impacts can now be heard just as far as gunshots.
  • Bullet impact sounds now have a different realistic sound for distant echoes.( Distant concrete can be heard being slapped, instead of sounding like it's happening next to you )
  • All new vox from being incapacitated, hit by explosives, arm shots, bleeding to death or actually dying. Screaming is heard interrupted mid gibbing.

* Improved Physics

  • Push forces for world objects is now scaled per weapon.

( I.E. Railgun will fling barrels across the room, or in many cases instantly gib the prop and send the gibs flying at high speed )

  • You can expect manual weapon handling for all rifles and handguns now and not just shotguns like before.

Upper-Receiver/Bolt-Carrier/Slide racking, audible cues that give your position away.

With rifles it's possible to do a quick reload by skipping racking, if you change mags before expiring the last bullet.

Equipment Changes:

  • Carrying over 15kg now enables equipment rustling sounds accompanying your footsteps. And enables the backpack bodygroup.
  • Added SUPER MEDKIT

Heals 150hp with faster healrate. Regular medkit heals 50.

  • Introducing “medkit sacrificing”. You may sacrifice an unused medkit to increase your max health by 5hp. The maximum achievable overheal is 200hp, but be careful overdosing on nanocain leads to death.
  • Russian faction spawns with two vodka bottles, each healing 25hp. Charging sounds are replaced with drinking sounds.
  • Added variety of magazines for most weapons, including drum mags and c-mags.
  • New mechanic "encumbrance" momentarily increases your spread, scaled by the weight of your weapon and how fast you turn.( I.E. Handguns have low encumbrance while swinging around, while machineguns take longer to zero in after turning quickly. This accounts for swaying motions. )
  • Three types of shotgun ammo. Civilian Buckshot, Double-Ought buckshot and Shot ammo.
  • Civilian buckshot has only five pellets, While military buckshot has nine. Civilian buckshot will now be seen as red and double-ought as military green. Shot ammo is a single more powerful slug. Slugs are more accurate and will allow shotguns to play the sniping role. What will happen when somebody uses slugs in a fully automatic shotgun saiga-12 with drum mags!?!!11 1

- Modular Weapon Scripting.

  • No more duplicating weapon classes, this will decrease weapon code bloat a lot. We can easily support and add more weapons now.

- Improved Hud

  • Vector based panels. Borders will render properly on panels that resize dynamically. It's possible to use animated VTF for the background of these panels!
  • Better fonts that now read more clearly on most video resolutions.
  • Icons for PUMP-ACTION, indicating if the slide is in the forward or back state.
  • New font color code for brown ^&
  • New font effect ^s for shaking text. ( limit to 5 max for anti-trolling )
  • New font effect ^x randomized rapid color changing text "ACID TEXT"

- Vastly improved particle FX

  • More extreme muzzle flashes and more intense wall impacts - yet more optimized.
  • Energy weapons now leave glow sprites on impact
  • Russian thermobaric grenade fragments leave walls temporarily on fire.
  • Added support for "onbreak" spawning unique particle FX when props gib

- Casings are scaled by distance to the camera, to make them more noticeable further away. At all the close ranges the casings will be sized true for realism, while the camera zoomed out will have the casings scale up.

Lambda Wars Update

Lambda Wars Update

Lambda Wars 16 comments

Last Wednesday we released our biggest update yet! This update includes three new units, two new buildings, many balance changes and improvements.

Happy Birthday, Swarm Director 2!

Happy Birthday, Swarm Director 2!

Swarm Director 2 3 comments

Has it been a year already? Let's look back at what we've accomplished so far.

May the Fourth be with you

May the Fourth be with you

Swarm Director 2 0 comments

v2 adds per-player first person, an even more powerful director, ASB2's spawn lists, player2k's Better HUD Mod, new entities, and bugfixes for several...

March 2015 Update

March 2015 Update

The Survival 3 comments

Despite a temporary hiatus in media releases, development of The Survival continues on!

Post download RSS feed Related Downloads
silenced weapons (vpk file)

silenced weapons (vpk file)

Alien Swarm:Silencer Mod Full Version 0 comments

Thanks for Geotavros' help, the vpk version is released.

Reality Arms MOD

Reality Arms MOD

Reality Arms MOD Full Version 2 comments

Here is the download, enjoy it! To install it please read Help.txt in the pack.

AS Enhanced IAF

AS Enhanced IAF

Enhanced Interstella Armed Forces Full Version 0 comments

Nothing special, download and extract it as a new game. Start Steam then start swarm.exe. More information in READ ME.txt, please read it before playing...

Reactive Drop 1.17 to 1.19 Patch

Reactive Drop 1.17 to 1.19 Patch

Alien Swarm: Reactive Drop Patch 2 comments

Adds updated version of Biogen Corporation, restores medgun functionality, improves onslaught hordes, fixes bugs and improves some maps. Requires 1.17...

Serious Swarm Marines Patch 13.1

Serious Swarm Marines Patch 13.1

Serious Swarm Marines Patch 3 comments

revision 13.1 | New update on mod Serious Swarm Marines, have fun. :)

Serious Swarm Marines

Serious Swarm Marines

Serious Swarm Marines Full Version 6 comments

revision 12.1 | New mod for Alien Swarm so much models and other, have fun. :)

Post comment Comments  (40 - 50 of 180)
saivert
saivert

hmm.. if this is to be compared to UDK, then you would have to be able to make any kinds of games with the Alien Swarm SDK and not just mods for it.

so is this possible?

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MrCrimson
MrCrimson

No Alien swarm is not the UDK; alien swarm is a game UDK is an SDK much like, hey I don't know, the source SDK.

Reply Good karma Bad karma+2 votes
ThisIsGamer
ThisIsGamer

Lol... Faith. Looks exsactly like her...

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synecdoche
synecdoche

Alien Swarm 3d...

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catman_94
catman_94

list of available comand for alien swarm
Forums.steampowered.com
some really fun and useful ones are there

Reply Good karma Bad karma+4 votes
pifroggi
pifroggi

an alien schooter 2 od would be cool ;)

Reply Good karma Bad karma-4 votes
Magirock
Magirock

-Excellent- game, nothing else has to be said.

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Highmist
Highmist

This game is soo fun. With the console commands i figured out from a steam news update, its even better. L4D-esque horde spawns add a little spice, especially when tweaked a little to specifications. It made soloing Landing bay on easy, well, not so easy :P but i actually made it through one >.^

Reply Good karma Bad karma+4 votes
badMEDIA
badMEDIA

any1 know how to set up a server with cheats on? I tired everything
I could think of and followed the Developer console's instructions but it didn't work...

Reply Good karma Bad karma+3 votes
Oy
Oy

1. Start a multiplayer server normally
2. Close it
3. Type "map lobby" in console
4. Type "sv_cheats 1" in console
5. Invite friends

Reply Good karma Bad karma+4 votes
klemen1702
klemen1702

Possible maps or mods
alien ( the movie mod) like u are marine and shoot aliens
u already have the vision for seeing aliens

also mod or map (starship troopers)
love the game :)

Reply Good karma Bad karma+4 votes
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Alien Swarm
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Valve
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Highest Rated (4 agree) 10/10

for a free game, this is one incredibly fun sci-fi creation, building on steam's co-op capabilities, which gives it immersive replay value, making it an awesome return-back platform for general cooperative-skills practice with new gamers and relaxing eye-hand coordination training gamers usually seek. given its free access to the game's sdk, enriches the experience even further, adding various creative production of new game content based on valve's source engine. what would u need more from a top-down…

Jun 6 2011 by goodone

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