This version of these mutations is now defunct and obsolete, however I will still leave it on the Workshop for archival purposes. It's been replaced by my better Veteran Difficulty, which is a much more accurate realization of my original intention. This w...

This difficulty is meant to serve as a taste test to Expert mode. This is just normal campaign with Expert mode rules, ONLY difference is that common infected deal 10 damage instead of 20 (like on Expert). Harder than Advanced, but a appetizer to Expert. T...

This addon randomly places additional objects in the official campaign. You play the same official map all the time, don't you want something new every now and then? Wouldn't it be possible to change gaming experience, just by slightly changing the placeme...

This add-on increases the difficulty of the game. Are you bored of doing the same thing every day in L4D? Then let's try a new challenge. This addon turns on/off alarms for cars on the map. You'd better forget about the familiar location of the alarm car. ...

What is this? and Why? This is a common library package that must be subscribed to in order to properly use add-ons created by Manacat. Previously, every each addons i made contained the common script parts. but, as the number of addons increased, it becam...

A script that adds the possibility of different item positions in finales to add more replayability. The campaigns not present in the screenshots either already had differing item positions, were gauntlet finales, or were Hard Rain where I don't know what ...

A simple script that randomizes the mounted guns you find in any map, with a 50/50 chance of being replaced. Features: Works on custom maps Compatible with Manacat's Random Item Spawner Please let me know if you find any bugs, cheers. ...

Fork of Error 305: Cannot load username's Human-Like Survivor Bots script. It is the exact same except it prevents bots from continue playing when all human players are dead. This is done by setting the ConVars allow_all_bot_survivor_team and sb_all_bot_ga...

Description: Attention!!! The addon does not remove the shaking of the screen permanently. All the addon does is prevent bots from shooting at you in order to avoid shaking. Bots stop firing when a player is in their line of fire. This addon only works in ...