Outbreak: Apocalyptic Bioweapons | Killing Floor | Left 4 Dead logo

Outbreak: Apocalyptic Bioweapons | Killing Floor | Left 4 Dead

Mod

by Fyrrage

Brutal, gruesome, and challenging. An outbreak of failed bioweapons invades your world. Currently Added: Killing Floor

Downloads

46,320

Type

Mod

CurseForge ID

1394128

Last Updated

Apr 9, 2026

Description

description_3e63cb7e-30cf-4305-a868-85f4719ee261.png

 

 

Outbreak aims to add apocalyptic monsters inspired by other medias into minecraft.

 

Key Features:

  • A fine addition for zombie apocalypse modpacks!
  • Headshots! hitting monsters in their heads rips them off.
  • Stylish Armor! Look cool while wiping out the abominations.
  • Lightweight! This mod only adds mobs and a few armor sets.
  • Configurable! Mobs' health and damage can be tweaked through a config file.

Currently Added Themes:

  • Killing Floor

Recommended to pair with Timeless&Classics(TaCZ), LesRaisins Tactical Equipements, Extra Gore

Requires Geckolib

 

If you find any bug related to this mod, please feel free to report in the comments, I will try to fix them asap.

 

description_c844bf26-95db-43e4-ab62-3827f5b6ca70.pngMobs:

Small Class // **Trivial Target**

 

Cyst

description_3e328143-e0d9-41f9-b8b1-7edac4ac7b2e.png

description_c0f0d9cb-f2a6-49f5-8af5-d7008cc4e064.gif

Clot

description_211c980f-976f-437e-82a2-00ffcdefd8fa.png

description_bb4d5105-e4f2-4e2f-9b17-7c6a122163b0.gif

Cysts and Clots have low health but comes in swarms.

 

 

Gorefast

 

description_0cec0985-ff88-4cb1-acf0-59b5eaae0fd6.png

description_5b3eb865-6f7b-4b16-9b6f-b309b9dc8cdd.gif

Gorefasts moves quickly, making them harder to aim at.

 

 

Crawler

description_e7bbe29b-d9d1-41d4-889a-44cfa665ae7d.png

description_71bae653-b7cb-4fe3-9510-c7eb604a534d.gif

Crawlers climb walls like spiders, have smaller hitboxes, and their black skin makes them a menace in dark enviroments.

 

 

Stalker

description_1ac4f4c6-65aa-4b4c-8cd6-3a6083ded0b9.png

description_8cfe5568-099c-43e9-bcaf-d7480f3cf339.gif

Stalkers are nearly 100% invisible, only showing themselves when they're close enough to lay their hands on you.

watch out for floating white eyes, or alternatively, wear Foster's Facade to reveal all Stalkers around you.

 

 

 

Spitter

description_cc8dca8a-a20b-4075-aa7c-274fe66013e2.png

description_aa9c3299-a182-4058-993f-a8de096652dd.gif

Spitters, as their name suggests, spits out toxic goops that lingers for a short duration on the ground they land on. 

these ladies can launch their attack at quite a long-range, utilize sidesteps to avoid taking DOT damage.

 

 

Medium Class // **Moderate Threat**

 

Bloat

description_20bbf106-630f-4dcb-ab20-92e2f31a7b98.png

description_55863e36-e75d-41a3-81a2-1779fee5f931.gif

Bloats spits out acid to poison you. Their bloated belly explodes if taken too many hits, prioritize their head to avoid the explosion.

 

 

Husk

description_96e809fa-d52e-46c5-87b4-be30280ed789.png

description_fa876fa6-e523-4cc6-a664-7576342233f0.gif

Husks are ranged attackers that shoots fireballs from afar, try to sidestep them while they're busy aiming.

 

 

Siren

description_7a767e0e-d729-47d6-ba77-363c92c33022.png

description_ef7effc9-eeae-408a-bf6a-3efb832440a1.gif

Sirens lets out ear-bleeding screams that hits all 360 degrees around them. Their damage can stack up really fast if not dealt with swiftly.

Equipping Scully's Mask grants user immunity to siren's screams.

 

 

 

Large Class // **Extremely Dangerous**

 

Scrake

description_13b99890-c1b0-4f90-97ae-36faa61127f2.pngdescription_2437990b-1404-45aa-8042-71a2ba1e7622.png

description_3ff83b61-c545-4445-960f-70171058f29b.gif

The Scrakes are raging monsters that chages at you with their chainsaw. be sure to keep your distance before engaging as they can take quite a lot of damage before going down.

 

 

Fleshpound

description_7f62d5e6-d820-40b5-af00-c38eeb412f20.png

description_d53ac45b-e8a2-4a3c-a301-a698a01e5d29.gif

This towering fear known as The Fleshpound are fast, tanky and will shred anything into pieces that comes in their way, direct approach is not adviced.

Instead, build a trap to immobilize them, or engage in groups to ensure survival.

Explosives preform extraordinarily well against Fleshpounds as well.

 

 

description_c0b2cb11-f207-49f8-9727-21f7dd9e576f.pngItems:

 

Bio Sample:

 

 description_26fb4c28-2cb5-4148-b1c3-cf4d65260abe.png

Dropped by most monsters from this mod, larger the monster, the more bio samples drop.

 

 

 

Bio Fabric:

 

 description_44dbbae5-8743-41ba-a68d-58b947e66072.png

Craftred by combining Bio Samples with strings. Used for equipment crafting.

 

Recipe:

description_78c94348-f8fd-4058-abd3-ab3357347bd8.png

 

 

 

Armor Scrap:

 

description_7d88beb4-8c85-4879-a853-cf2f02d7873e.png

Obtained by killing large monsters.

 

 

description_dbd3fdb9-4e8d-4c9d-a6f2-b74aa26a4bb3.pngArmor:

 

Horzine Mark 7 Armor:

 

description_73d96b6a-4001-4356-8ace-9b4bc1098220.pngdescription_cfe41b68-23cc-4499-9b3f-e29970e7f388.png

Recipe:

description_318a6993-f908-4f68-a013-635932ddaf90.pngdescription_94109505-c205-491b-92f9-b350a908dcad.pngdescription_47139f92-a9c4-4414-851b-f3e5df68302f.pngdescription_34fca0dc-1768-49c9-b006-8a12a8e1a5bd.png

 

 

 

DJ Scully Outfit:

 

description_bc9d9dd3-8080-47b3-b45d-0ce09a7d5a92.png     description_ec7a0f59-05a0-4552-8395-d27fa5487003.png

Recipe:

description_5498bf1e-c96c-4bd8-b32b-0af167fd244c.pngdescription_266864c2-84c1-4d77-9daa-d498505227e1.pngdescription_a50009b5-0ab7-426a-a9a5-02817a68db65.pngdescription_c907b8e2-1238-4d0f-a5a3-3e3897761ffe.png

 

 

 

Foundry Worker Outfit:

 

     description_0e231c1d-bd7f-43c9-8d2b-86c7c9de13f1.png

Recipe:

description_92379f07-9f72-4915-8adc-f7cb5387e159.pngdescription_fa337db8-93b8-4c60-9cac-12eaffeca027.pngdescription_a3cd0b92-ab57-4479-bd54-41927a35a91f.pngdescription_73ef2ad1-d20d-4c35-a8c9-e1a880a2690f.png

 

 

 

Mr.Foster Outfit:

 

     description_c818bdb8-811d-4583-aaf7-23857989f87d.png     description_c6ed2e79-5c67-470a-871b-6c71284b6c9b.png

Recipe:

description_d3d89494-f931-4c82-b62a-8e5d53d74b09.pngdescription_305162db-129d-4fc2-a1d8-b3b6339f45c2.pngdescription_ff44b888-cf3e-4736-aa35-ecf7be442cd9.png

Screenshots

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