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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Alien Swarm pulse rifle

Alien Swarm pulse rifle

Weapons Model 9 comments

Replaces standard rifle with an M41A Pulse Rifle from Aliens movie. Replaces model, sounds and UI icon. Also changes motion tracker sound.

Minigun Heavy

Minigun Heavy

Weapons Audio 0 comments

This addon changes the sound of minigun and autogun to a more bass variant. snd_rebuildaudiocache command is required after installation

Silent Corridors

Silent Corridors

Multiplayer Map 0 comments

Silent Corridors is currently a one map campaign created with asw_tilegen. It will be updated frequently.

Postapocalypse addon *Fixed*

Postapocalypse addon *Fixed*

Multiplayer Map 4 comments

This is my very first campaing for alien swarm and bla bla bla.Some locations have allies, quests and other weird stuff. So ready your Zaporozhec, grab...

Beyond Limits Texture Mod 2

Beyond Limits Texture Mod 2

Textures 0 comments

This addon replaces textures in Beyond Limits campaign map one.

Beyond Limits Texture Mod

Beyond Limits Texture Mod

Textures 0 comments

This addon replaces textures in Beyond Limits campaign map one. All textures are taken from textures.com and are licensed under the textures.com license.

Beyond Limits -> Updated

Beyond Limits -> Updated

Multiplayer Map 2 comments

Campaign updated with second map. Enjoy! More map coming later.

Delusion

Delusion

Multiplayer Map 1 comment

Delusion is a one map campaign created by ShadowsInRain. It's a hard map, so be ready for it.

Absolute Madness

Absolute Madness

Multiplayer Map 2 comments

Finally it is here. Most complex unlinear openworld map with additional areas and quests with huge amount of custom models, textures, particles and even...

Map Overview Loading Screen

Map Overview Loading Screen

Textures 0 comments

This addon replaces the Alien Swarm map loading background image. Extract it to Alien Swarm/swarm/addons folder

Sepia Color Correction

Sepia Color Correction

Effects GFX 0 comments

Adds sepia color correction. Three addons that override color correction used in Jacob's Rest.

Alien Eggs Loading Screen

Alien Eggs Loading Screen

Textures 1 comment

This addon replaces the Alien Swarm loading background

Landing Bay Exterior Color Correction

Landing Bay Exterior Color Correction

Effects GFX 1 comment

Changes the color correction of the exterior part of Landing bay and all of Syntek Residential, Deima Bridge

Jacob's Rest LDR

Jacob's Rest LDR

Multiplayer Map 0 comments

This is an official Jacob's Rest campaign but compiled with LDR lighting which gives much darker environment similar to the original Alien Swarm UT mod(2005...

Nest Textures

Nest Textures

Textures 0 comments

Retexturing the Nest map with high resolution textures to make it look better

Nest

Nest

Multiplayer Map 1 comment

Nest is a one mission campaign used in Alien Swarm: Reactive Drop mod(RD) for showcasing the power of the "Red drones". In RD these drones can't be ignited...

Silenced Rifle

Silenced Rifle

Weapons Audio 0 comments

This addon replaces Assault Rifle shooting sound to a silenced shooting sound

Alien Swarm MapPack 1.2+ to 1.4 Update

Alien Swarm MapPack 1.2+ to 1.4 Update

Multiplayer Map 9 comments

This is the Update 1.4 to Alien Swarm MapPack 1.2+ by goodone, the ultimate collection of campaigns, maps and enhancements for Valve's Alien Swarm, made...

Hive

Hive

Multiplayer Map 11 comments

Marines we have received an emergency beacon from the genetic lab at LVR-784,but we have no response on the comms! Hustle up and investigate the situation...

The labyrinth

The labyrinth

Multiplayer Map 0 comments

this is a multiplayer alien swarm map. its very hard and takes 10-30 minutens.

Reduction: The Alien Swarm Campaign

Reduction: The Alien Swarm Campaign

Multiplayer Map 1 comment

You are a squad of "Offworld Drop Marines". You are engaged in a war with hostile creatures in the Outer Systems. Your tour ending, you have returned...

Realistic Mod - Weapon and Difficult v.1.0.0

Realistic Mod - Weapon and Difficult v.1.0.0

Prefabs 4 comments

Hy. This is my first Addon for Alien Swarm i ever did. I'm finally played with that addon only with a fev friend's , becouse we enjoying this game on...

Puzzle Bundle

Puzzle Bundle

Multiplayer Map 0 comments

Puzzle Bundle is a campaign containing puzzle maps Brainwater Shieldbug Wrangling and Brainwater Warehouse by Nightgunner5, Industrial Jungle by Lycosa...

Extermination Campaign v1.5

Extermination Campaign v1.5

Multiplayer Map 5 comments

Extermination is a campaign which unites single maps

Jacob's Practice

Jacob's Practice

Multiplayer Map 0 comments

This tiny addon allows you to play Jacob's Rest Practice map in multiplayer. It is Landing Bay and Cargo Elevator maps united in one map.

Dead City v 1.2

Dead City v 1.2

Multiplayer Map 5 comments

Dead City is a 3 mission campaign by Daniel101. Version 1.2 contains network optimization for mission 3.

Weapon Sounds

Weapon Sounds

Weapons Audio 0 comments

This addon replaces sounds for Autogun, Minigun, Rifle, Prototype Rifle, Flamer, PDW, Tesla.

Ancient Ruins

Ancient Ruins

Multiplayer Map 6 comments

Ancient Ruins campaign with bloom fix and a working DL link to Mod DB.

Russian Translation \ Русский перевод

Russian Translation \ Русский перевод

GUIs 4 comments

Russian translation of UI. Русский перевод пользовательского интерфейса.

Operation Cleansweep

Operation Cleansweep

Multiplayer Map 0 comments

Campaign Operation Cleansweep with bloom fix and a working DL link to Mod DB.

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Alien Swarm
Platforms
Windows
Developer & Publisher
Valve
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Homepage
Alienswarm.com
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Addon Categories
- Multiplayer Map
20
- Prefabs
1
- Weapons Model
1
- Animal Audio
2
- Weapons Audio
4
- Language Sounds
1
- Effects GFX
2
- GUIs
1
- Textures
5