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
- Blue Archive Arona/Shiroko marinesby imelmanReplaces swarm marines with Shiroko/Arona from Blue Archive. More stocks to exhaust. Art is not mine, used only for in-game images. Model source:1.7k downloadsupdated 4 y ago
- Microsoft Bastille Voice Modby Škoda OctaviaYep, it's voice mod made fully with microsoft Sam. All 281 lines. Includes a lot of swearing, dunk memes, hate and cancer. I hope you will like it! *Fixed 2 missing lines1.7k downloadsupdated 9 y ago
- The Beginningby Fuzzy "aNIMaL"Don't know who the creator is or I would give them credit. Had these maps on USB for over 7 years from the original Alien Swarm game and this is the easiest way to share them with everyone. Post if you know who made it.1.7k downloadsupdated 9 y ago
- Combine Interference (Challenge)by ModdedMarionetteCurrent Version: Beta v4.0 (Local installation's version can be checked via console at mission start by every player) Combine Interference Challenge (First Person + Third Person Over-the-Shoulder Variants Included) We are not the only ones here for the aliens. Combine Interference is a simple but...1.6k downloadsupdated 4 y ago
- SS2 Grenade Launcher (Replacement)by Deagledore_69420Replaces the Grenade Launcher with the Grenade Launcher from Serious Sam 2 Check out my other skins: Credits: Croteam - models, textures, sounds Ported from a Garry's Mod Addon by me Garry's Mod Addon: upset - porting Serious Sam 2 weapons to Garry's Mod pechenko_121 - ripping some models, helpin...1.6k downloadsupdated 10 y ago
- Mb's Weapon Sounds Addonby tercioThis is a personal pack that replaces some weapons with my edits of stock sounds.1.6k downloadsupdated 9 y ago
- Blood and Bulletby ETimeXWith this addon, you can have Auto Regen + Revive Teammate + 250/240 Medgun Ammo + 25/24 Heal Beacon + 25 Ammo Satchel + Drop Medkit(kill 66 aliens) and Ammo(kill 77 aliens) ! !!! only work at single player. !!! OR !!! 1: create a single player game, then exit to main menu. 2: create a public or...1.6k downloadsupdated 9 y ago
- Challenge:Cartridge Weaponsby LansayinThe first challenge: 1.You have 100 ammo bags. 2.Add a bigger fast reload line under your marine. 3.There are your SteamID and your marine's name under your marine. 4.Flamer ignite human immeidately too. 5.Disable the death camera. 6.Remove the weapon requirements. 7.Frag grenades can ignite the...1.6k downloadsupdated 9 y ago
- M1Garandby lucasrojasEste addon esta basado en el arma M1Garand / This addon is based on the M1Garand weapon1.6k downloadsupdated 10 y ago
- Class Unrestrictedby ETimeXAll marines can use all kind of weapons. See more at change log. !!! only work at single player. !!! OR !!! 1: create a single player game, then exit to main menu. 2: create a public or friends-only game. 3: enjoy. !!! DON'T compatibility with this addon Challenge version -----FOR THE PEOPLE DON'...1.6k downloadsupdated 9 y ago
- Jerma985 Voice Modby Twilight SparkleHello everyone, today i bring you a voice mod replacement, since there are few around on the workshop i throught why not do one too, so this one is the voice of Jerma985, he will replace all the lines of Sarge, there are about 227 voice lines, a couple of them are left untouched as im still worki...1.6k downloadsupdated 10 y ago
- Portraits: Alien Swarm 2k4by Duke MCharacter portraits made from the original Alien Swarm 2k4 by Black Cat Games. List of Changes: -Removed names from helmets -Created Vegas portrait out of an original texture (extracted by Facepalm Incarnate, thx) from 2k4's character Lt. Williams -Customized Crashs, Wildcats & Wolfes helmet colo...1.6k downloadsupdated 9 y ago
- Dead Space Sound Pack 1by SarahTheWolf(My 1st AS:RD mod :D) Replaces item pickup (not ammo though), menu sounds (UI), background music and at last, healing sounds! (healthkit, satchel, adrenaline) with sounds from Dead Space!! Enjoy! Part 2 here!1.6k downloadsupdated 8 y ago
- Rude Mission Failed/Complete Messageby legomanasReplaces the english translation's mission completion messages with insults Why would you ever download this? I don't know. But it's funny to me so enjoy it.1.6k downloadsupdated 2 y ago
- Halo 4 main menu theme for alien swarmby Ghostface711this mod here replaces that creepy amb at the main menu with the halo 4 main menu theme for all of us reclaimers and before you ask yes i do plan on making a halo 5 version1.6k downloadsupdated 10 y ago
- Killzone, Survival, Originalby Minigun SpecialistThe original survival map by hardcorekillernl(hk). The objective is to kill 2 000 aliens.1.6k downloadsupdated 7 y ago
- Blue Archive Combine modelsby hangumiChange the model of combine soldier and elite. -Elite - Kurihama Akemi -Soldier & Shot Gunner - Arius GL, Terror1.6k downloadsupdated 23 mo ago
- Silent Hillby Great Shark 🦈SILENT HILL Something purely evil is lurking in the darkness.... Wandering around to consume a daring soul to ever cross the Silent Hill. Do not ever get lost in the dark.... Stay with your buddies, move with caution, only then you might survive. You only have pistols to defend yourself, Meds and...1.6k downloadsupdated 6 y ago
- Revive 2by Uzric RashYou can revive your teammates by holding the use button (E). Unlike the original Revive Challenge by KillStr3aK, when all marines are knocked out the mission instantly fails.1.6k downloadsupdated 6 y ago
- Prey Swarm Marinesby M@GISTERrevision 1.0 ------------ EN: *Port models from Prey 2017. *New music theme from Prey 2017 and other. *New portraits and icons. revision 2.0 ------------ EN: *Fix removed the pilot's picture. *Fix character was bug with textures. revision 3.0 ------------ EN: *New custom helmet. *Fix port done fo...1.6k downloadsupdated 10 y ago
- Kill Or Dieby OrangeNear each second marine lose health. If marine kills an alien it recieve health reward. Kill or Die!1.6k downloadsupdated 9 y ago
- Adopt cute kittenby [CN]GodLikeSuch a cute kitten, don't hold one to fight against aliens together? XD Changed the default loading cycle, including but not limited to: loading cycle, character selection, weapon selection, MOD loading No more staring at the cycle rigidly, Oh yeah ! If you think it's good dont forget to like it...1.6k downloadsupdated 6 y ago
- Larnok 2 (1.1 WIP)by MjäYYY MIAUUU MURR NAUSKsYou are tasked to deliver some Odenatus powersources to the Filand sector power-reactor. Defend yourselves from the swarm in the Fortress equipped with the most powerful of weaponry. Quickly react to objectives as the mission is very time exclusive!1.5k downloadsupdated 8 y ago
- Half-Life 2 Alien Soundsby SarahTheWolfReplaces all Swarm sounds with various enemy sounds from Half Life 2! What is replaced: Biomass - Tentacle (only death sounds / HL1 sounds) Drone - Antlion Ranger - Antlion Worker (or Acid Antlion) Boomer - Gonarch (HL1 sounds) Shieldbug - Antlion Guard Parasite / Xenomite - Headcrab Misc: Boomer...1.5k downloadsupdated 8 y ago
- Bounty's Crosshairby Duke LowpingReplaces the crosshair with a yellow circled one. Reloadbar in transparent green. This is a port from 'Nepumax Circled Crosshair' mod for Alien Swarm Source. The original files can be found here Other stuff used in the screenshot: Colorful Marines No Grain Weapon retexture1.5k downloadsupdated 9 y ago
- Reworked Classes (1.3)by o'niteClasses have been completely reworked - forget about old restrictions! Special Weapons The only class that can carry sentries. Wolfe - strong frontliner Wildcat - fast and deadly Vegas - demolition support Tech Vegas wasn't smart enough to remain being a tech so now Crash is the one of a kind. Cl...1.5k downloadsupdated 9 y ago
- Nahmmodby NahmyRemake of my old mod from 2010. Simple mod re-enables some cut content and content from Classic Alien Swarm (2004) with no regard for balance or map design. Now has a Companion! Nahmmod Companion link: Features: - Pistols may once again be taken as sidearms (sidearm+primary=more ammo) - Classic A...1.5k downloadsupdated 10 y ago
- Silhouette Planaby 7:76Change the silhouette to Plana.1.5k downloadsupdated 2 y ago
- Costalby jhheightCostal: A map that features a boss fight. You have a limited amount of weapons to choose from and a limited amount of ammo. Note: It is hard to complete solo, because it's meant for cooperative play. There are many director spawners, so playing on Onslaught will give a real experience of a boss f...1.5k downloadsupdated 8 y ago
- Skill Training - Challengeby ETimeXThis mod add 3 challenges about skill: Skill 0, Skill 2, Skill 5. Skill 0: Lose all marine's skill bonus. Skill 2: 2 times marine's skill bonus than original. Skill 5: 5 times marine's skill bonus than original, and watch your fire.1.5k downloadsupdated 9 y ago
- Material Design Emotes - white versionby Davide7097Replaces the emote icons with Google Material Design icons. The ammo icon is based from the pencil. If you prefer a eye-catching colors, try out the colored version, or the the newer Material Symbols style.1.5k downloadsupdated 3 y ago
- M1919by lucasrojasEste addon esta basado en el arma M1919 / This addon is based on the M1919 weapon1.5k downloadsupdated 10 y ago
- Lurker Rangerby hangumiThe rangers are affected by the marker. -The Ranger has been replaced with the lurker model. -Changed attack sound -Sound can be scary -Have Fun~! -Model Source - Dead Space - Lurker1.5k downloadsupdated 8 y ago
- 榴弹音效(养耳)by 765611994725016131.5k downloadsupdated 4 y ago
- 游戏优化/CFG(old)by 76561199017573982更多指令可以看看我写的指南 搞了些七七八八的优化指令丢cfg里面了,所以只要你订阅就能使用 主要内容: 禁用胶片颗粒效果 启用队员而外对话 限制动态灯光为4 禁用相机抖动 禁用运动模糊效果(当相机移动过快时) 禁用屏幕两侧的“变暗” 生命值低时禁用红屏闪烁 生命值低时禁用心跳声音 禁用bloom效果 禁用深度模糊效果 关闭死亡慢放 开启镜头旋转 禁用慢动作引起的小窗口 自动准备 关闭所有慢放 关闭老毕登(对就那个讲话的那个b) 水开关 开启计时器 net_graph 1//显示帧数和详细面板 结束任务后显示排行榜 启用队员而外对话 放大右下角小地图 其他的可调节选项我就不加进来了,因为设...1.5k downloadsupdated 2 y ago
- shanghai ! hourai!by 76561198375861947silence,small bugs,I don't want listen your sound,I just want to be happy (doge) change small bugs sound a small sound hate big sound Don't worry about many sounds シャンハーイ! ホウラーイ!!1.5k downloadsupdated 4 y ago
- Low health effectsby AstroCatNipRe-enables the cut yellow and red led health effects while keeping the smoke and spark effects intact. yellow 50% health red 25% health //PLEASE RESTART YOUR GAME AFTER DOWNLOADING THE MOD FOR IT TO WORK PROPERLY, THANKS//1.5k downloadsupdated 21 mo ago
- Touhou Reimu/Marisa marinesby imelmanReplaces swarm marines with Marisa/Reimu from Touhou series. Art is not mine, edited for in-game apperance. Model source:1.5k downloadsupdated 4 y ago
- Hiyori Onslaught Soundby 7:76Change Onslaught Sound.1.5k downloadsupdated 13 mo ago
- Neptunia marinesby imelmanReplaces swarm marines with various Neptunia series characters. This is yet another stock I am exhausting, though it was intended to have voicelines, expect due to fact I am fairly busy as it is, I am releasing it early without it, and due to how bodygrouped fullbody models work, it took a bit of...1.5k downloadsupdated 4 y ago
- Communication Station Sweepby Minigun SpecialistDestroy infestation within the communications office. By HappyHiker82. This is the original, unchanged campaign. Map name is comms9. Note. Set your Options - Video - Bloom to Low or map will look too bright. Tip. As this map heavily uses projectors you may want to set a launch option for AS:RD: -...1.5k downloadsupdated 7 y ago
- Highlander Railroad Colonistby hangumiThey are students from a Highlander Railroad Academy dispatched to an outer planet.1.5k downloadsupdated 2 mo ago
- Antlion Chokmahby hangumiThe guardian of the Decagrammaton has arrived in the remote world. -Change the model and sound of Antlion guards, guardians. -Share some of the particles of Kether and Chesed.1.5k downloadsupdated 9 mo ago
- Player Arrow - Green (animated)by tekLustReplacement for the default player indicator arrow. Animated green glow version. ------------------------------- Workshop Links: ------------------------------- - Blue Arrows - Green Arrows - Red Arrows - Orange Arrows - Pink Arrows - Purple Arrows - White Arrows -------------------------------1.5k downloadsupdated 8 y ago
- Deswarmby KablaaaFirst jump map in Alien Swarm, prepare to rage quit. Master movement to complete all 5 rooms or see how far you can get. How to Air Strafe: If moving up with "W" then wanting to curve to the left. After you jump tap "A" then hold "S" (this works in all directions judging from your initial jump di...1.5k downloadsupdated 7 y ago
- Flat Emotesby Duke MRedesigned emote icons. Flat, bright colored, easily recognizeable.1.5k downloadsupdated 9 y ago
- Extremetttby RevenantEXTREME TIC TAC TOE RAVE!! Map by Sparkes1.5k downloadsupdated 9 y ago
- Colorful Weapons Tracers(多彩的武器轨迹颜色)by hy236As u can see from the pictures, most of weapons' tracer and muzzle are colorful (except the flamer). Such as the Vindicator, minigun, autogun, railgun, pistol, sniper, shotgun and etc. Wish u guys will like them! Enjoy~ P.S.:This addon is not compatible with other tracer or muzzle addons. Please...1.5k downloadsupdated 8 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.

