Source-checkedGameplay & overhauls

Infernal Nightmare Difficulty

by Forrest Mark X · for Killing Floor 2

Description A difficulty mod that adds a whole new difficulty level to KF2 called Infernal Nightmare. Changes from HOE ZEDs spawn much faster ZEDs move faster Alpha ZEDs can catch you on fire…

1.5KDownloads
7 yr agoLast updated
322 KBFile size
Steam WorkshopSource

About Infernal Nightmare Difficulty

From Steam Workshop

Description A difficulty mod that adds a whole new difficulty level to KF2 called Infernal Nightmare. Changes from HOE ZEDs spawn much faster ZEDs move faster Alpha ZEDs can catch you on fire…

Description

A difficulty mod that adds a whole new difficulty level to KF2 called Infernal Nightmare.

Changes from HOE

ZEDs spawn much faster ZEDs move faster Alpha ZEDs can catch you on fire Fleshpound has an Alpha class that is stronger Alpha zed spawns are increased by 50% All players slowly lose health over time (Disabled by default) Starting dosh is reduced Dosh gain is reduced Respawn dosh has been reduced Death will take away more dosh than HOE Husks will suicide at a higher health value Pat, and Hans can now move in all phases when using minigun/grenades Self damage is much more unforgiving Scrakes will now sprint when spawned

Install

[olist] [*]Subscribe to this item [*]Restart KF2 [*]Open console with ~ [*]Type Open KF-BioticsLab?Mutator=NightmareDifficulty.NightmareMutator?Difficulty=4 [/olist]

Config

KFNightmare.ini

TakeHealthInterval=0
HealthDamage=5
HealthLimit=50
ZedModifiers=(HealthMult=1.250000,HeadHealthMult=1.500000,SprintChanceMult=1.500000)
HealthSound=NightmareMode_rc.st_takehealth_c
ConfigVer=3

If you wish to disable the health drain system then set HealthLimit to 255 or TakeHealthInterval to 0

Source Code

https://github.com/ForrestMarkX/KF2-Infernal-Nightmare

Highlights

From source data

Footprint

A 322 KB download, rated a light load on a server.

Last update

Its author last shipped an update 7 yr ago.

Infernal Nightmare Difficulty on Nxeon

From our catalogue
One-click install
Supported on Nxeon Killing Floor 2 servers. We download it from Steam Workshop, place it, and restart the server.
Server load
light
Smallest plan we suggest
Killing Floor 2 — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
2020-01-20, released 2020-01-20, 322 KB

Game versions by loader

LoaderGame versionsNewest
Workshop

From 1 recorded build of Infernal Nightmare Difficulty.

Run Infernal Nightmare Difficulty on a Killing Floor 2 server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Steam Workshop as “Workshop”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Compatibility

Game
Killing Floor 2
File size
322 KB

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-10-10Open ↗
  • ✓AuthorForrest Mark X, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

Infernal Nightmare Difficulty, answered

Generated from the mod’s own source data.

Is it free?

Yes. Infernal Nightmare Difficulty is free to download from Steam Workshop.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Infernal Nightmare Difficulty on a Killing Floor 2 server.

Deploy in about a minute from $5.99 a month, then add Infernal Nightmare Difficulty in one click.