Browsing 'Co-Op' Maps

The original Crash Course extended to 5 maps in length with 1sg_heartless tweaks! 1sg added all weapons, all L4D2 items, panic events, a new atmosphere and also a new finale. Missing models have been fixed. Duplicated models and textu...

Our survivors have several small town adventures but finally ending up in a town disastrously near a fault line. Did I mention this fault line is ready to erupt at a moments notice. Better move quickly and get to the helicopter rescue if...

From a chopper crash stranding the Survivors in the city, you must try to catch up with the military as they pull out of the area. Through a dangerous tunnel system, underneath a harrowing bridge, past a power station and Forward Operati...

Welcome back to San Marino. Pick up the story from where it last left off at the end of 2019 with a vastly improved campaign. After the helicopter crash, Nick and the other survivors must find the last way out of the city - a hidden bun...

For anyone that couldnt figure it out, this project is abandoned in favor of other projects. If you liked the concepts then rest safely in the knowledge that they are being improved upon with future projects.

This campaign would crash on any server due to no stringtable files being in each .bsp map. Added them and it now is playable online without crashing you start game from lobby and that next person joins the server.

The survivors find themselves trapped in the suburbs with Devil Mountain looming large in the distance, its emergency beacon activated. Is it a call for rescue, or a warning of danger? Climb the back of the beast and find out! Devil Mou...

Valve's 2 map tutorial demonstration campaign Now with fixed train model thanks to Rayman1103 Broken door might still be missing textures This problem also happens in No Mercy DEADLINE 2 An example campaign for Left 4 Dead 2's Add...

Welcome back to San Marino. Can you save your favorite mall cop, Paul Blart, from facing an untimely death? He's trapped inside a bunker and needs your help. (The first person to find all hidden Paul Blart posters in the campaign wins ...

Our survivors start out in a subway, working their way through some city adventure until they finally reach an underground bunker where they can catch a helicopter ride out. This campaign is just a re-release with map 2 repaired and putt...

An exert from the past/future project "Haunting Grounds"... and the first of numerous souls you will have to vanquish in order to escape from purgatory... If you find any bugs/problems/issues... Let me know... Always open to feedback.....

A full 5-map campaign featuring random and player-caused map permutations, custom scripted events, custom materials and finale. After escaping New Orleans, the survivors (in a shocking turn of events) find themselves the victims of a he...

At first there were only empty shells, a hand, a hook, an old paper-plate doll, but then a remarkable discovery was made... The attraction now has zombies. No jumpscares in this map. This map may be updated in the future to rectify t...

This is a fixed version of Dead Before Dawn DC. The orignal creator of this campaign haven't updated it since 2013, and had many bugs on some areas and never fixed FREE_EDICTS issue when hosting (only happened on the 3rd map), which many...

(Co-op) You start of at the entrance to the Factory area. From here you can see some stairs going up to the 4th floor outside of the main building, up here you can activate the door to unlock at the warehouse making it possible to conti...

Another day another chopper crash, this time the survivors find them selfs trapped at an abandoned research facility. And the only way out is down to the core. Survivors must escape from half life's black mesa complex. This campaign ...

Here is the final version of this map that never made it on to this site. Long and lost no more. Enjoy everyone!

*v0.2 is available after far too long. No supports Survival! See changelog for more info.* "Stuck in the backcountry swamps of Louisiana, the survivors discover what appears to be an abandoned refuge ready for the taking. Unfortunately ...

Our campaign entry for the China contest. NEWS We posted version 2 update. you can download from mediafire too This is a map take place in Hong Kong China. Hong Kong is infected and survivors found themselves trapped in Hong Kong This ...

After losing Bill and helping four strangers on their way to New Orleans, Francis, Louis, and Zoey have finally made it to the Florida Keys. Unfortunately, they weren't the first ones here.

This is NO MERCY DAYTIME made by me, and this is finale version, I will keep update if necessary, hope you enjoy it !

* NEW AND IMPROVED!* Bad Neighborhood is a four map campaign that has players fight through a suburban street, a school used by the military, a sewer and a park. Also supports Survival. You can check out my YouTube channel where I have...

Echo Evac is a 3 map campaign that picks up as a sequel to Blood Harvest (L4D1) The campaign was first posted on L4Dmaps back in 2010 This campaign has had over 20k downloads before it was taken down due to lack of updates over the past ...

This is not intended to be like the official No Mercy. It's based off of early developmental footage (videos and screenshots). You will NOT have L4D2 specific items and weapons playing this. Urban Underground takes place back during a ti...