Source-checkedWeapons, items & crafting

ZMB-13

by t-bone · for Left 4 Dead 2

You have been kept as human test subjects in an underground biological weapon research facility. A brief power failure has allowed a dangerous mutagen, code-named ZMB-13, to escape into the…

174KDownloads
13 yr agoLast updated
Steam WorkshopSource

About ZMB-13

From Steam Workshop

You have been kept as human test subjects in an underground biological weapon research facility. A brief power failure has allowed a dangerous mutagen, code-named ZMB-13, to escape into the…

You have been kept as human test subjects in an underground biological weapon research facility. A brief power failure has allowed a dangerous mutagen, code-named ZMB-13, to escape into the environment, turning everyone in the facility into the walking dead. Amazingly, your air filtration unit remained active during the blackout, sparing you from their fate. Now you must fight through the hordes to reach the surface and whatever rescue may await.

The campaign comprises three levels: 1. Barracks 2. Labs 3. Surface (Gauntlet finale)

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 13 yr ago.

ZMB-13 on Nxeon

From our catalogue
One-click install
Supported on Nxeon Left 4 Dead 2 servers. We download it from Steam Workshop, place it, and restart the server.
Server load
light
Latest build
2013-07-20, released 2013-07-20

Game versions by loader

LoaderGame versionsNewest
Workshop

From 1 recorded build of ZMB-13.

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
Left 4 Dead 2

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-11-01Open ↗
  • ✓Authort-bone, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

ZMB-13, answered

Generated from the mod’s own source data.

Is it free?

Yes. ZMB-13 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 ZMB-13 on a Left 4 Dead 2 server.

Free to download from Steam Workshop.