Alien Swarm: Reactive Drop
Alien Swarm: Reactive Drop mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
1,902 mods, most downloaded first · newest update 27 Oct 2026
challenge281skin247Sound170Weapons142Marine141campaign116model102prototype rifle89Assault Rifle87heavy rifle82Music80vindicator79Autogun79combat rifle76marksman rifle75bulldog72Weapon70devastator62Deagle59shotgun57HUD53Sounds52Models47Bonus45Grenade Launcher43halo42UI407:7634replacement33ASBI30survival29Texture27Minigun24Config24Blue Archive21Glow19Voice19Space18Dead Space18flag18alien18Railgun17Drone16Particles16marines15animated15Flamethrower14Crosshair14Chainsaw14Meme13Combine13Background12particle12Half Life12rifle12Ammo12Horde11Challenges11blue11warframe11Custom11emote10Adrenaline10Grenade10Textures10Color10aliens10Swarm10faith10Skins9Arrow9 Soundtrack9Emotes9Audio9VGUI9Fun8Glowing8Effect7Starcraft7loading7crash7menu7Barrel7Training7Max Payne6Loading Screen6Anime5fix5Guns5Interface5Red5Gun5Escape5health5Medkit5gunshot5modding5
- AS:I Beta aliens (2023 fix)by AstroCatNipReplaces the 90% of the retail aliens with the AS:I closed beta variants. (and additional fan content.) -Beta Drones including elite and uber variant. -Rangers all no longer weak old drones but baby mortarbugs "Cheeky little bastards" but also kinda cute. -Harvest are no longer as streachy as the...203 downloadsupdated 3 y ago
- Red Grenade Launcher Explosion (none explosive particles)by hy236Red grenade launcher explosion (none explosive particles). based on "None grenade explosion particle" by Juras #Duo. update: replace certain particles with special ones.202 downloadsupdated 8 y ago
- Robot-1by 5564653254Replaces marine model to this one. Created by Lucas Rojas202 downloadsupdated 9 y ago
- 青色榴弹/cyan grenadelauncherby 76561199017573982202 downloadsupdated 3 y ago
- Call of Duty 4 weapon pack 3by imelmanReplaces various weapons with ones from Call of Duty 4 Modern Warfare. A 3rd pack with other variations. Model source:202 downloadsupdated 4 y ago
- CODWW2 US ammo boxby imelmanReplaces the ammo box with one from Call of Duty WW2. Model source:202 downloadsupdated 4 y ago
- Blue Steel railgunby Ax-nowSkin for Railgun201 downloadsupdated 4 y ago
- Break those Boxesby AstroCatNipEver wanted to break those cartboard boxes or wooden supply creates and get loot from them ? Well now you can. Use normally or combine with other chellenges if you like Credits: Astro - had this idea randomly one day ModdedMarionette - The entire code for it, big thanks201 downloadsupdated 15 mo ago
- rainbow door-半透明门补档by 76561198413520989唉,还要重新套色= =,好麻烦!还要把彩虹锯子和彩虹喷重新补档.201 downloadsupdated 2 y ago
- Classic Marine Modelsby element109Restores classic Alien Swarm marine models.200 downloadsupdated 4 y ago
- Better call saul briefing menu musicby 76561199089663656Resound briefing menu Sound:Better Call Saul Main Title Theme 风骚律师的主题曲,替换准备界面BGM。200 downloadsupdated 4 y ago
- HDTF weapon packby imelmanReplaces various weapons with ones from Hunt Down the Freeman. Don't even ask why I made this besides trying to show what I can do with weaponry.200 downloadsupdated 4 y ago
- Kamikaze Drones Challengeby jhheightaliens want to kill you at any cost. even if they have to put a barrel on their back and rush to explode you. dont get too close grenade launcher is not allowed199 downloadsupdated 4 y ago
- Oops! All Bastilleby Got Pentium?Looks like someone accidentally released the Bastille Clones... Every marine is now Bastille. This isn't a reskin or sound replacement mod. No, my friend! The real Bastille actually replaces each marine. The only thing untouched was classes and their skills so that it can remain balanced (or as b...199 downloadsupdated 7 y ago
- Fatality Hordeby RevenantReplaces horde sounds to fatality sound from MKX198 downloadsupdated 9 y ago
- JC2 Mile High Club Adrenalineby OreganoReplaces Adrenaline Music with the Mile High Club Music from Just Cause 2 By unrelenting requests... i have added a preview link... are you all happy now?198 downloadsupdated 9 y ago
- sniperby 76561198413520989198 downloadsupdated 21 mo ago
- Black amber flamer skinby Ax-nowSkin for Flamethrower Blacker metal, gas canister with brighter colors197 downloadsupdated 4 y ago
- Headcrap havester's bug / Parasiteby ターニャ196 downloadsupdated 9 y ago
- BackFire Challengesby *unnamedAdds Energy Weapons, Level One, One Hit, Rifle Mod, Difficulty Tier 1 and Difficulty Tier 2 challenges with BackFire enabled. Returns friendly fire. Challenges are identical otherwise. Based on BackFire by Orange. Does not include BackFire or ASBI BackFire.196 downloadsupdated 9 y ago
- Change the shot sound of rifleby LansayinDo you think the shot sound of rifle is too noisy? I think so too. So I change it to the shot sond of tech rifle.195 downloadsupdated 9 y ago
- Speedrun/速通by 法克*尤尔*马泽尔*******IMPORTANT****** This is a challenge comes from Dev Team menber Mithrand. 这是一个由开发组成员Mithrand制作的挑战。 For more infomation on Speedrun and Leaderboard, see: 点击以下连接以了解更多关于“速通和排行榜“的说明 What does this Challenge do: 这个挑战修改了以下设置: 1.Speedrun - default settings - asw_marine_rolls 1 - rd_marine_stuck_in...195 downloadsupdated 4 y ago
- [W.I.P} Alien Swarm Beta Dronesby geewormRemember that old beta drone replacement that got taken down? Now here's another one, and its even better. Features: -Full animations, including climb, leap and unburrow -Cool eye glow on drones -Some custom animations too! Including an improved idle -Semi-beta styled Ranger -Beta Styled Mortarbu...195 downloadsupdated 8 y ago
- Meleeby jhheightChallenge: Only equipment you have are sentry guns and your bare fists!194 downloadsupdated 9 y ago
- Rotating Camera Challengeby jhheightMoving your mouse horizontally rotates your camera. It is like a steering wheel, if you keep your mouse on the left side of the screen it will rotate left, if you keep it further left it will rotate faster.193 downloadsupdated 4 y ago
- Action Source/Dystopia weapon packby imelmanReplaces various weapons with a mixed selection of Dystopia/Action Source weaponry.193 downloadsupdated 4 y ago
- Do Not Dieby 7:76If you die, we die.191 downloadsupdated 3 y ago
- The Chainsaw based on its iconby AstroCatNipThis mod makes the chainsaw look more like its ui counterpart.191 downloadsupdated 6 y ago
- Hololive Shishiro Botan vtuber marineby imelmanReplaces the 1st marine group(Sarge, Wildcat, Faith, Crash)with virtual youtuber Shishiro Botan from Hololive. Art is not mine, used only for in-game images. Model source:191 downloadsupdated 4 y ago
- Drones have eyes ???by AstroCatNipThis mod gives drones eyes and fangs. -Works with both Drones and UberDrones -Their eyes glow in the dark -Supports custom skins "I heared the claws of a swarm drone can rip right through our amour." -Sarge191 downloadsupdated 4 y ago
- 替换炮虫音效/Cannonball bug sound replacementby 76561199017573982This is a spoof mod.The spoofed person agreed. This is my first time to do mod, and I hope to point out the bad things. Thanks for downloading. 替换炮虫对大自然美好向往的音效(诺希酱同意了撒)191 downloadsupdated 4 y ago
- Yoba flashlightby OrangeSimple reupload of this addon: All credits to original author.190 downloadsupdated 7 y ago
- Vtuber Azuma Lim marineby imelmanReplaces the 2nd marine group(Jaeger, Wolfe, Bastille, Vegas)with virtual youtuber Azuma Lim. 3rd addon of my seperated collection, to see if people want more of it. Art is not mine, used only for in-game images. Model source:190 downloadsupdated 4 y ago
- Payday 2 soundtrackby imelmanReplaces various music with one from Payday 2.190 downloadsupdated 3 y ago
- The christmas seasonby AstroCatNipMarry Christmas my fellow marines. Recommended with:189 downloadsupdated 6 y ago
- Modern Warfare menu music for lobby replacerby MoustacheTimeReplaces lobby music with menu theme from Call of Duty Modern Warfare.189 downloadsupdated 3 y ago
- Yellow Gasby hangumiThe gas turns color yellow. Have Fun!188 downloadsupdated 21 mo ago
- Throwing knifesby AstroCatNipTurns the hornet barrage of mini rockets into homing in throwing knifes. -Custom models -Customs sounds -Custom Particles bugs: -Since rockets and grenades share the same particles, grenades will have red trails too188 downloadsupdated 22 mo ago
- E.Y.E weapon packby imelmanReplaces various weapons with ones from E.Y.E Divine Cybermancy.188 downloadsupdated 4 y ago
- Timed Door audible countdown (REUPLOAD)by locklannReupload of MID's now-deleted heavy door warning addon. Adds an audible 10 second countdown to timed doors. All credit goes to the original author "MID" whom I would've never been able to track down and get the permission from if not for 漠羅紗 thanks to them and checkout their cool mods!188 downloadsupdated 15 mo ago
- Overwatch korea ver Luciu - Crashby ターニャOverwatch korea ver Luciu - Crash187 downloadsupdated 10 y ago
- More Alien Wanderersby AutoGavy187 downloadsupdated 5 y ago
- DRG Weapon soundsby AstroCatNipReplaces most of the weapon sound with DRG weapons. //weapon models will come later, sadly porting textures from the game isnt easy so it will still take a bit// All assets belong ghostship games all rights reserved187 downloadsupdated 4 y ago
- MARINES RESKINNED+ (custom helmets)by Ax-nowA slightly modified version of the legendary o'night marine skin, this version changes the colors of marine helmets with the same class for better distinction of each characters. Sarge: brown and green military strip Jaeger: full military green Wildcat: gray and blue strip Wolfe: full gray Faith:...187 downloadsupdated 14 mo ago
- Blue Archive Kazusa/Mika marinesby imelmanReplaces swarm marines with Mika/Kazusa from Blue Archive. While I am still working on a revision of an old addon, those extras should keep you busy. Art doesn't belong to me, used only for in-game imagery. Model source:186 downloadsupdated 2 y ago
- USP-S BlueSteel (Deagle skin)by Ax-nowSkin USP-S BlueSteel based on USP-S Cyrex from CSGO. this skin replaces Desert Eagle. feat perfectly with this sound addon:184 downloadsupdated 4 y ago
- Black Mesa: Scientist Deathmatch Announcerby EddieboyThis add-on replaces the deathmatch announcer with a Scientist from Black Mesa. NOTE: If the mod isnt working, open console and type in "snd_rebuildaudiocache" without quotations and restart your game when its done loading. You can enable developer console in the Mouse/Keyboard settings.184 downloadsupdated 4 y ago
- Drone Color White 70%by DmitriyMakes alien drones white colored with 70% reflectivity by overriding their texture.183 downloadsupdated 9 y ago
1.9k mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.

