Steam Workshop::Random mutations

Created by bruhlord

It's like an old zombie movie. Only common infected spawn, and they hit much harder. The only weapons are pistols, pump shotguns, molotovs, pipe bombs, melee weapons and chainsaws, as well as the good ol' M16. You start with a baseball bat and some pain pi...

Day Break (Campaign)

Created by DannBo

It's been a long road since I started this project shortly before Left 4 Dead 2 came out, but I'm happy to share with you my custom campaign: Day Break! Campaign Description: The survivors must escape San Francisco before the military bombs it! After their...

Derailed v5

Created by Rick_0_Shay

A brand new 4 level campaign for Autumn 2020. A long running project finally completed due to Covid-19 lockdown. A train wreck an underground lab and a zombie prison riot, can this day get any worse? Featuring original maps created by Rick_0_Shay and oodid...

Mutation: Tetramagnum

Created by Ben Lubar

Four survivors. Four magnum pistols. That's it. No other guns. No health packs. No special infected, apart from a few boomers. Well, QUITE a few boomers. Stock up on painkillers. You're going to need them....

Mutation: Homerun

Created by Rye

You only have a baseball bat to deal with a bunch of Chargers... In Homerun, all weapons are replaced with Baseball bats and you are faced against hordes of Chargers (Tanks and Witches are still in the game), Medkits are also there, but no pills or adrenal...

Speedrun!! Mutation [Beta]

Created by Rectus

A mutation where you battle the other survivors getting to the saferoom first. With infinte ammo and regenerating health, the infected are merely there to slow you down. Items are replaced with adrenaline and molotovs. Features server persistant scoring. C...

Gun Hunt Mutation

Created by Rectus

A modified survival mode where guns and items spawn randomly throughout the area at timed intervals. The guns have limited ammo forcing survivors to constantly search for new ones. Currently has custom item spawnpoints on: c1m4_atrium c2m5_concert c3m4_pla...

Mutation: Mental Health

Created by Ben Lubar

Maintain your sanity through the deliberate assassination of others. You're bleeding out and the only way to recover health is by finishing off enemies with headshots. Accuracy and teamwork will be necessary to survive....

Middle School

Created by AlwaysToast

Middle School Mutation No L4D2 special infected. Meaning: No Jockeys, No Spitters, No Chargers. Only specials are Hunters, Smokers, and Boomers. All other things from L4D2 still in place....

I Hate Mountains Part 1/4 - Don't forget the other 3 parts to avoid errors !

Created by El Moroes

I Hate Mountains is the name of a Left 4 Dead 1 and 2 campaign made by three French friends. Be aware that this campaign is built the Valve way, we are not trying to revolutionize anything, we just want to provide more content to this awesome game. • • Be ...

I Hate Mountains Part 2/4 - Don't forget the other 3 parts to avoid errors !

Created by El Moroes

I Hate Mountains is the name of a Left 4 Dead 1 and 2 campaign made by three French friends. Be aware that this campaign is built the Valve way, we are not trying to revolutionize anything, we just want to provide more content to this awesome game. • • Be ...

I Hate Mountains Part 3/4 - Don't forget the other 3 parts to avoid errors !

Created by El Moroes

I Hate Mountains is the name of a Left 4 Dead 1 and 2 campaign made by three French friends. Be aware that this campaign is built the Valve way, we are not trying to revolutionize anything, we just want to provide more content to this awesome game. • • Be ...

I Hate Mountains Part 4/4 - Don't forget the other 3 parts to avoid errors !

Created by El Moroes

I Hate Mountains is the name of a Left 4 Dead 1 and 2 campaign made by three French friends. Be aware that this campaign is built the Valve way, we are not trying to revolutionize anything, we just want to provide more content to this awesome game. • • Be ...

Plan B

Created by Rectus

After a car crash, you are stranded in the middle of nowhere with a storm approaching. You need shelter and possibly find a way to continue your journey. A 3 map campaign playable in Co-Op and Versus. Features exploring, dynamic weather, lots of easter egg...

Urban Flight

Created by The Rabbit

The city is burning. As ash falls, the survivors attempt to flee to a small military airfield on the other side of the river. It's a straight path down the main boulevard, but nothing is ever simple. Crashed cars, blazing fires, police barricades, and the ...

Death Row

Created by Saleck

Originally made in 2009 and ported from L4D1 to L4D2, As the only known group of survivors left, you and your group must make your way through the town and out to an abandoned prison for shelter or for some kind of rescue. This campaign was my first attemp...

The Floor is Lava

Created by Individual

Do you hate spitters? Are you scared of burning to death in a pool of acid? Prepare to be horrified. This coop mutation removes most of the infected, but not spitters; increasing the maximum number from 2 to 14. Witches and tanks are left unchanged. Splat!...

BIG Terror

Created by shotgunefx

Giant infected + Boomers. Infected are slower, but have a lot of health and hit hard. Aim for center mass down, head shots won't count on standing infected atm due to model bbox issues. I'd simply recompile them but don't want to mess up other campaigns. H...

Shotgun Hunter

Created by F3AR_E4TERdotexe

Armed with a combat shotgun and a baseball bat, you must prevent infected from knawing your fat. Common infected can slow you down, while jockeys and hunters lurk around. Mutations include: Lone Shotgun Hunter Singleplayer Combat shotgun (spas) and basebal...

Walls Special Infecteds

Created by M1LF HUNTER

Compatible with The Last Stand Update. you can see them through things and walls. I don't take care of trolls using this in vs, it's done for campaign or singleplayer. ...

New Special Training

Created by mt2

It may not work properly when used with the Admin System or Admin Menu or the weapon script change addon if other addons overwrite coop.nut, realism nut, survival,nut. this addon doesn't work Subscribe and make campaign or realism or survival room Practice...

Batter Up

Created by bruhlord

A survival mutation. You are given baseball bats, adrenaline, and healing items. Only Chargers and the occasional Tanks spawn. Your goal: Level as many Chargers as you can, before they get a chance to level you. The Charger cap has been raised to 15. Place...

SI Plus

Created by shotgunefx

coop/versus mutation that tweaks infected. Tanks startle all zombies in their radius to attack random survivor. Startling a witch, will cause all zombies in radius of witch to attack startler. Special Infected can control zombies to attack a random player ...

Biters

Created by bruhlord

The infected have evolved to bite. And with each bite comes infection. In this co-op mutation, you have to make your way through this horde of "biters". When you get bitten, you start bleeding out. Not only that, but zombies love the smell of blo...

Boomer Peril (Tank Rush mod)

Created by Neil - 119

This mutation is like Tank Rush with a twist: There are only boomers at first, but boomer vomit will attract a mob of tanks. The goal: finish without getting vomited (and if you do get vomited, finish without dying). It may sound simple, but as you will se...

Lone Survivor

Created by bruhlord

There's no time for friends in this apocalypse. No special infected spawn, but there's a lot more common infected. You spawn with a pack of pain pills and a melee weapon. Good luck. This mutation can be accessed through the main-menu....

Plague of the Dead

Created by Rayman1103

Only one of each weapon will be available, and only common Infected spawn. The Infected may be slow, but they pack a punch. Only headshots will kill the Infected. If you get incapacitated you'll be auto-revived, but an Infection timer will appear. You have...

Tank Rush! Mutation

Created by iChun

No commons, specials, witches. Just plenty of tanks. Two modes to choose from. Tank Rush! or Tank Rush! Extreme. Tank Rush! features an M60 with infinite ammo whilst Tank Rush! Extreme features the normal weapon spawns with a decreased tank spawn timer. Ki...

Top Gun (Mutation)

Created by CWMlolzlz

How good are you? Can you race your friends to being the most powerful mofo in the game? Start with the measly pistol and work you way up to becoming the top gun! Each weapon requires more kills than the last. At certain weapons you will be given a bonus i...

Mutation: Attack of the Boomers

Created by some sort of giant enemy crab

Only boomers, getting vomited doubles their spawn rate. Defaults to expert with lowered FF Highly reccomend sniper rifles for killing them (250hp boomers) Credit to Neil - 119 for the base code (boomer peril)...

Three Of Us

Created by Zev.

"Third time's the charm, fourth: disaster." English: Modification which supports max 3 players without 1 bot. Environment was balanced in terms of mutation. General Information: - Character chosen by the host is affecting playable characters setup! - Up to...

Dead Fun 1

Created by ₩ɨƶ

Infinite ammo / crouch run Fast heal / revive / rescue time Long pipebomb timer and big booms Mini gun longer, no over heating Moon jumping in campaign only Bots will take over if you die Far melee range for bats, axes, etc Solo or host a Local Server game...

Locked Doors (2 Players)

Created by poM

Some doors are locked. You need keys. In this mutation, you are a group of injured survivors. You'll start with a limited ammo magnum pistol and it's the only gun in this mutation. Magnum pistol is your primary so you can (should) have a melee weapon as yo...

Mutation: Chain Smokers *Beta*

Created by some sort of giant enemy crab

Lots of smokers. They deal very high damage if they pull you, but they will die in one hit. Did I mention there was a lot of them?...

Super Gib Fest Mutation

Created by AlexBLR

You and your best friends! You have M60 with unlimited explosive bullets and Chainsaw. On the other side a lot of hungry zombies. Much more special infected! Features: - No friendly fire even for your self! - Your attacks isn't infinity, surprise! - You sh...

Old School

Created by eleCt_eXile

Old School is a mutation that tries to replicate the older style of zombies, creating a slower, longer lasting sense of suspense; as opposed to a straight out action romp. Zombies are slow and plentiful, and only go down with a headshot. Don't get bogged d...

Overrun Mutation Pack

Created by Fine

"Overrun", another singleplayer mutation mod that aims to bring the survival experience to Left 4 Dead. "All Alone" veterans will be particularly pleased with the challenge this gamemode poses. Mastered the art of sneaking around zombies with melee weapons...

Mutation : Army of Two

Created by AymericTheNightmare

2 Survivors with only M-16 and Desert Eagle....

Last of us Mutation

Created by ExPR

"I have not... Come this far... To die now." HUGE UPDATE FOR ALL OF YOU GUYS Introducing Last of Us Mutation This is a two-player mutation, similar to the Last of us Series where two remaining survivors must survive the apocalypse. With the onslaught of ho...