Source-checkedMaps & scenarios

Complex Course

by Raze · for Left 4 Dead 2

UPDATE: This campaign now has 6 maps with a new additional Map 5: AI. Remember during Map 4 where the AI asks you to meet it? The time has finally arrived to fight against the Boss of Complex Course.…

128KDownloads
8 yr agoLast updated
Steam WorkshopSource

About Complex Course

From Steam Workshop

UPDATE: This campaign now has 6 maps with a new additional Map 5: AI. Remember during Map 4 where the AI asks you to meet it? The time has finally arrived to fight against the Boss of Complex Course.…

UPDATE:

This campaign now has 6 maps with a new additional Map 5: AI. Remember during Map 4 where the AI asks you to meet it? The time has finally arrived to fight against the Boss of Complex Course. This update also fixes most of the bugs reported and adds some new stuff that you can check out in the changelog.

This boss is balanced for Normal Difficulty: Single Player. Which means it should be possible with 4 players on Expert.

Campaign Information:

Are you ready to have your teamwork and friendship tested to its limits?

Survivors have found themselves trapped in a sadistic course created by an AI. Can you brave through all the traps and shenanigans to leave this "Complex" alive? Or play the Survival Map to experience a new "What If" path where the AI decides to leave them for dead in the final map...

Highly inspired by Questionable Ethics campaign, but harder and smaller in scale because time constraint is a thing. Recommended to play this campaign in Co-Op. Remember! This campaign is unlike your typical Valve Standard Campaign. It is as mentioned earlier, MUCH HARDER than the usual campaign you'll normally play.

YOU MUST PLAY WITH INSTRUCTOR HINTS ON! EVEN THE SURVIVAL MAP AS WELL TO RECEIVE INDICATION OF CERTAIN EVENTS.

Teamwork is an absolute essential to survive! Don't leave any survivors alone!

Also, if you're interested in knowing the tactics needed to clear this campaign on the highest difficulty, do check out the discussion section. Though I would highly encourage you to try it out for yourself since that's really half the fun.

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 8 yr ago.

Complex Course 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
2019-01-30, released 2019-01-30

Game versions by loader

LoaderGame versionsNewest
Workshop

From 1 recorded build of Complex Course.

What kind of mod it is

From the catalog
Listed on Steam Workshop as “Workshop”

Maps & scenarios

Custom maps, arenas and scenarios to play on.

Compatibility

Game
Left 4 Dead 2

Verified at the source

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

Complex Course, answered

Generated from the mod’s own source data.

Is it free?

Yes. Complex Course 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 Complex Course on a Left 4 Dead 2 server.

Free to download from Steam Workshop.