Source-checkedWeapons, items & crafting

Zedternal Unlimited

by Duke · for Killing Floor 2

Zedternal Unlimited A perk expansion pack for Zedternal Reborn's endless mode. Zedternal Unlimited adds 47 custom perks, 300+ skills and 26 weapon upgrade types to Zedternal Reborn. Each perk is…

1.3KDownloads
37d agoLast updated
901 MBFile size
Steam WorkshopSource

About Zedternal Unlimited

From Steam Workshop

Zedternal Unlimited A perk expansion pack for Zedternal Reborn's endless mode. Zedternal Unlimited adds 47 custom perks, 300+ skills and 26 weapon upgrade types to Zedternal Reborn. Each perk is…

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Zedternal Unlimited

A perk expansion pack for Zedternal Reborn's endless mode.

Zedternal Unlimited adds 47 custom perks, 300+ skills and 26 weapon upgrade types to Zedternal Reborn. Each perk is built around its own mechanic, with its own skill tree, milestone abilities at levels 10 and 20, and HUD elements made for it.

Overview

  • 47 perks, each with its own core mechanic and playstyle
  • 300+ skills spread across the perk trees
  • 26 weapon upgrade types on top of Zedternal Reborn's own
  • A level 10 milestone and a level 20 capstone on every perk
  • Custom HUD elements that track each perk's mechanics
  • Works in multiplayer on dedicated and listen servers

Key Features

Roguelike Upgrade System

Between waves you buy perk, skill, weapon and equipment upgrades from the trader. Six rarity tiers affect what shows up, so the trader looks different every run.

Evolution & Progression

A lot of the perks have mechanics that build up the more you play them, so sticking with a perk pays off. Every perk gets a new mechanic at level 10, a capstone at level 20, and its own pool of skills, so builds differ from one perk to the next.

Custom HUD & UI

Perks add their own HUD elements where they need them, like evolution stage counters, dosh trackers and escalation indicators. They sit inside the existing KF2 interface.

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Installation

[olist] [*] Subscribe to this mod on the Steam Workshop [*] Subscribe to Zedternal Reborn (the required base mod) if you haven't already [*] Launch Killing Floor 2 [*] The perk pack loads automatically alongside Zedternal Reborn [*] If you're not comfortable with .INI files and server settings, my Zedternal Unlimited website has an INI configurator with import/export, so you can set the mod up the way you want [*] If you need help, feel free to join the Zedternal Unlimited Discord. I'm always happy to help! [/olist]

Requirements:

  • Killing Floor 2 (latest version)
  • Zedternal Reborn, which you can get here

Note: This is an expansion for Zedternal Reborn and needs the base mod to run. It adds to Zedternal Reborn's existing systems.

Recommendations:

The INI configurator on the Zedternal Unlimited website supports all of the above, so you can mix and match them.

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Dedicated Server Setup

Quick Setup

[olist] [*] Subscribe to both Zedternal Reborn and Zedternal Unlimited on the Workshop [*] Add both mods to your server's workshop subscription list [*] Launch your server or singleplayer game with one of these commands (replace KF-SteamFortress with any map you like):

1. Default Zedternal Reborn gamemode (random weapons appear in the trader every wave)

open KF-SteamFortress?game=ZedternalRBPerkpackage.DKGameInfo_Endless?mutator=ZedternalRBPerkpackage.DKMutator

2. Zedternal Reborn with all weapons available in the trader

open KF-SteamFortress?game=ZedternalRBPerkpackage.DKGameInfo_Endless_AllWeapons?mutator=ZedternalRBPerkpackage.DKMutator

[*] Only put one ?mutator= in the command line. If you run other mutators, separate them with commas in that same parameter, otherwise only the last ?mutator= is used and DKMutator never loads. [/olist]

Registering the perks, skills and upgrades

Zedternal Reborn only loads what is listed in KFZedternalReborn_Upgrades.ini. If the perks don't show up in your trader, they are almost certainly not registered in that file.

The complete, copy-paste block is here: zedternalunlimited.com/ini

It contains every entry in the pack:

  • 47 PerkUpgrade_Upgrade lines for [ZedternalReborn.Config_PerkUpgrade]
  • 300+ SkillUpgrade_Upgrade lines for [ZedternalReborn.Config_SkillUpgrade]
  • 26 WeaponUpgrade_Upgrade lines for [ZedternalReborn.Config_WeaponUpgrade]

Paste each block under its matching section header, keep the entries you already have from other packs, and restart the server. The list is too long for this description, which is why it lives on the site. The configurator can generate the same file for you if you would rather click than paste.

Server Configuration

All perks are configurable through Zedternal Reborn's configuration system. Server admins can:

  • Enable or disable individual perks
  • Adjust perk availability per wave
  • Configure skill pools and restrictions
  • Set the unlock rules that gate perks behind base perk levels

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FAQ / Troubleshooting

Q: Do I need Zedternal Reborn installed?

Yes. This is an expansion for Zedternal Reborn. It extends the base mod's systems and won't run without it.

Q: I don't see the perks in the trader

Two common causes. First, they may not be registered in KFZedternalReborn_Upgrades.ini, see the server setup section above. Second, most perks are locked behind a prerequisite, so on wave 1 you will only see the perks that have no requirement. Level a base Zedternal Reborn perk and the rest appear.

Q: Does this work on dedicated servers?

Read the full description on Steam Workshop →

Highlights

From source data

Footprint

A 901 MB download, rated a light load on a server.

Last update

Its author last shipped an update 37d ago.

Zedternal Unlimited 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
2026-09-09, released 2026-09-09, 901 MB

Game versions by loader

LoaderGame versionsNewest
Workshop

From 1 recorded build of Zedternal Unlimited.

Dependencies

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run Zedternal Unlimited 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”

Weapons, items & crafting

New weapons, gear, items and the recipes to make them.

Compatibility

Game
Killing Floor 2
File size
901 MB

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-10-16Open ↗
  • ✓AuthorDuke, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

Zedternal Unlimited, answered

Generated from the mod’s own source data.

Is it free?

Yes. Zedternal Unlimited 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 Zedternal Unlimited on a Killing Floor 2 server.

Deploy in about a minute from $5.99 a month, then add Zedternal Unlimited in one click.