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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We're happy to announce that in four days we were able to raise the necessary 90 euro to pay the Steam Greenlight Submission Fee. We have now submitted Reactive Drop to the Greenlight and seek your support to help this mod get on Steam. Vote, follow, add to favourites, share to steam status and send link to friends :)
Also if you use facebook, vk or twitter you can post the link there. In twitter, please, use #reactivedrop hash tag.


Here is our 2nd promotional trailer made by Negative Slayer. Big thanks to him!

Feel free to download the most recent version of the mod(1.20). Try it out and provide feedback in our Steam Group Forums. You can either download an archive

Reactive Drop 1.20 Full


Below are some tasty screenshots of our official maps. Enjoy :)

Our official mapsOur official maps

Cold Catwalks and Factory maps


Our official mapsOur official maps

Paranoia campaign map 2 Hostile places


Our official mapsOur official maps

Syntek Hospital


Our official mapsExtermination Port and Road maps

Communication Center and Midnight Port


Bunker mapExtermination Port and Road maps

Bunder and Road to Dawn


Reactive Drop 1.20 Update Released and Greenlight Fundraising

Reactive Drop 1.20 Update Released and Greenlight Fundraising

Alien Swarm: Reactive Drop

We have released version 1.20 and trying to get mod on Steam Greenlight.

Game Updates

Game Updates

News 3 comments

We have a new video update regarding the development of the game!

HYP 0.5 - Preview Update 01

HYP 0.5 - Preview Update 01

Hypovolemia 5 comments

Hypovolemia version 0.5 is approaching the inevitable release. Here's what we've been working and planning on!

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.

Add file RSS Related Files
Reactive Drop 1.20 Full

Reactive Drop 1.20 Full

Alien Swarm: Reactive Drop Full Version 2 comments

Full latest version. Delete old version. Extract to <path to steam>\SteamApps\sourcemods. Restart Steam. If you use Laucher app there is no need for this...

Alien Swarm: Reactive Drop Launcher 1.03

Alien Swarm: Reactive Drop Launcher 1.03

Alien Swarm: Reactive Drop Installer Tool 1 comment

Allows users to easily install, update or delete Alien Swarm: Reactive Drop mod. Version 1.03. More user friendly version with more dialogs and notifications...

Alien Swarm: Reactive Drop Launcher

Alien Swarm: Reactive Drop Launcher

Alien Swarm: Reactive Drop Installer Tool 1 comment

Allows users to easily install, update or delete Alien Swarm: Reactive Drop mod. It uses Subversion(SVN) to download and update the mod.

Rifle Mod Server DLL 2016.05.04

Rifle Mod Server DLL 2016.05.04

Alien Swarm: Rifle Mod Full Version

Extract it into Alien Swarm\swarm\bin. Use console commands to activate game modes in each round. rm_mod 0 - classic Alien Swarm, rm_mod 5 - Solo Player...

Reactive Drop 1.19 Full

Reactive Drop 1.19 Full

Alien Swarm: Reactive Drop Full Version 1 comment

Full latest version. Delete old version. Extract to <path to steam>\SteamApps\sourcemods. Restart Steam. If you updated using patches there is no reason...

Reactive Drop 1.17 to 1.19 Patch 2

Reactive Drop 1.17 to 1.19 Patch 2

Alien Swarm: Reactive Drop Patch

This patch adds Silent Corridors campaign and resolves issues with Antlion Guard. Requires 1.17 or higher version installed. Extract this archive into...

Comments  (0 - 10 of 177)
RequiemLux
RequiemLux

used to play this long time ago, it was nice

Reply Good karma Bad karma+1 vote
TheFinalSeeker
TheFinalSeeker

A Time Splitter mod for this uhh mod would be so good

Reply Good karma Bad karma+1 vote
nando259
nando259

Man, I need to download and play this game :)

Reply Good karma Bad karma+1 vote
Guest
Guest

It's free on Steam.

Reply Good karma Bad karma+2 votes
kakkin
kakkin

Como diablos pongo Desura en EspaƱol????? How do you go again Desura in Spanish???

Reply Good karma Bad karma-1 votes
EASTEDERD
EASTEDERD

This game was fun to play when you have four friends who also like it.

Reply Good karma Bad karma+2 votes
babyman1
babyman1

you guys can get this game on steam for free

Reply Good karma Bad karma+4 votes
PurpleGaga27
PurpleGaga27

(buried)

Team Fortress 2 is now Valve's best free game ever over this Alien Swarm game.

Reply Good karma Bad karma-22 votes
defragen1
defragen1

tf2 is todays power rangers

Reply Good karma Bad karma0 votes
SIR_halyavshik
SIR_halyavshik

Alien Swarm is made by fans

Reply Good karma Bad karma+17 votes
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Alien Swarm
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Windows
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Valve
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Alienswarm.com
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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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Arcade
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Sci-Fi
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AAA
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