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Recommended 'Research' Add-ons
Research maps for Left 4 Dead 2.
Kink 3/4 maps

Plot: The survivors have escaped from the zombies by using a boat, but an incident forced them to dock.
The army seems to be here, but they quickly notice that they cannot count on them...
What happened to that boat? What to do? Where to go? Will survivors survive again? o_O

Please note: The MAIN GOAL of this campaign is to be CHALLENGING (mainly made and tested for Realism Expert mode)
Thus, you may be stuck by searching your way, being blocked by puzzles, or a missing key that is lying around.

* Challenging
* Puzzles (some optional)
* Find the way
* Secrets & counter
* Traps
* Custom content

  04/18/2014Version: 128 (beta) Views: 59077 By: bybloViews: 59077 L4D2
Witch Execution - Training map
Witch Execution - Training map

First and only witch crowning training map, that will not just put you in a room with a witch and a shotgun (meh), but show where and when exactly you have to shoot that scum for 100% crowning in every possible situation.

Crystal blue button - spawn a witch
Green button - open room mode on/off

Tip: spawn witch, get as close as possible to her and wait until she'll raise her head and/or neck above glass shield then shoot. Aim for the neck, chin, higher part of a chest.
And if you're crazy enough, there're some melee weps.

To run this map, open console (press ~) and type map sb_witch then press Enter.

  02/08/2014Version: 69.2 (complete) Views: 22947 By: Swooping BearsViews: 22947 L4D2
Smoker's Tongue Reflection - Training Map
Smoker's Tongue Reflection - Training Map

Even though humankind is dead, human curiosity is still livin'.
This small and cozy underground lab allows you to develop all
necessary skills and reactions, needed for successful Smoker's tongue reflection.

Swooping Bears.

To run this map, press ~ and type map sb_smoker in console.

  02/06/2014Version: 69.3 (final) Views: 42170 By: Swooping BearsViews: 42170 L4D2
Ron Swanson
Ron Swanson 3/3 maps

my first map. Some tips to enjoy the game:
_ Cut the music.
_ Play with a team, this is very important.
_ Kill the zombies very quickly (prevent lag)
_ Prefer use pipe bombs, grenade.
_ Find cheats,teleports and WTF stuffs hidden in the 3 maps.

I wait your advice.

  10/25/2013Version: 3 (beta) Views: 28573 By: ChokinoViews: 28573 L4D2
The Convoy
The Convoy

Buy vehicles ranging from the unstoppable Killdozer to the high tech CEDA Research Trailer and modify them to purchase weapons, deployable traps, sentry turrets, fences and even battlefield leveling support powers!

Hire mercenaries to support you in your attempts to salvage the parts to build your escape, including the original cast of L4D1 survivors and series legends such as The Rescue Pilot, Jimmy Gibbs, Jr., Virgil and the Midnight Riders!

Version 4.0 has been released with a number of improvements and fixes!

NOTE: Several SERIOUS issues have arisen with other maps. Please disable them and reload L4D2 before playing!

  10/16/2013Version: 5.1 (beta) Views: 101633 By: Robert RiterViews: 101633 L4D2
Let's Build 2 Core
Let's Build 2 Core

The core to the sequel Let's Build a Rocket. This powerful setup allows players to freeform build their forts and defend their base against zombies! Included are source files and a playable example map. Help make Let's Build maps better by contributing maps, sounds, script, or models!

  10/14/2013Version: 1.0 (complete) Views: 40431 By: RimrookViews: 40431 L4D2
Prototype Mk. 3
Prototype Mk. 3 5/5 maps

Take part in the Synergenic Technologies Inc. Hazardous Environment Teambuilding Study. Fight your way through teeming hordes of the undead to escape the testing area. It's almost identical to Prototype Mark 2, but edited to play better in L4D2.

  08/18/2013Version: 1.0 (beta) Views: 31484 By: Jon WhitleyViews: 31484 L4D2
Let's Build:Deconstruction
Let's Build:Deconstruction

New Update 06/17/13.


Players must build barricades to protect themselves,loot corpses and research weapons while looking for carparts to complete the car,fuel it and escape the madness.

  06/17/2013Version: 3.0 (complete) Views: 49713 By: MapeaterViews: 49713 L4D2
Facility 13
Facility 13

UPDATE 5/12/13: Survival mode added (BETA)! Difficulty lobby added!

A research/barricade based game inspired by rimrook's 'Let's Build a Rocket!' with an added twist. Players must build barricades to protect themselves, while using gas cans as fuel to unlock weapons.

There seems to be some issues with other VPKs not playing nicely with my map. If you're getting crashes or the game just won't start, temporarily DISABLE any other add-ons and RESTART L4D2.

SEE CHANGELOG for latest updates.

  05/12/2013Version: 1.1 (complete) Views: 81579 By: raulness & dustpupViews: 81579 L4D2
Half-Life 2: Route Kanal
Half-Life 2: Route Kanal 6/6 maps

REQUIRES additional addon to display textures: Half-Life 2 Texture Pack (linked below)
Chapter 3.
Follow the footsteps of Gordon Freeman as our survivors make their way thru the HL2 content.
-Exploration is rewarded!


Better to not be afraid of some water as our survivors embark upon "a dangerous route to my father's lab, through the old canals." On there way to Black Mesa East the survivors discover traces of the combine still remain in the infected city 17.

But are they prepared for this long and exhausting journey?

v1.1 Released!

Read the changelog!

  05/08/2013Version: 1.1 (complete) Views: 76343 By: schayk91 aka |NFG|AngerfistViews: 76343 L4D2
Let's Build the Finale
Let's Build the Finale

Features in Let's Build The Finale:
- complete all four events to create Finale Builder
- collect gnomes and put them in marked spot to unlock weapons and barricades(they spawn every two minutes in random places)
- use shop machine to buy suplys example defibrilator(read change log for more info)
- rebuild barricades to temporaly stop zombie

With Finale Builder you can choose:
- rescue vehicle
- ending camera
- sound after ending camera start
- weather during finale

I recomend to turn on game instructor!!
Also disable other vpks or temporaly move them somewhere else.
And read Change log for more information

  03/08/2013Version: 14 (complete) Views: 36720 By: greenhoodViews: 36720 L4D2
Let's Build an Iceplane
Let's Build an Iceplane

Our 4 survivors gathered together after the zombie apocalypse started. They decided to go to the kinda-famous Plaza they used to go to. Upon arrival , they noticed there was nobody. Soon the zombies became flooding in , the survivors decided to go away on their own. Build barricades , research weapons and build an iceplane while fighting off hordes of zombies and meeting the nature's snowy storm.

This map was quickly built , and is also a very fast map. Details will be added later. If this map is too easy , try change difficulty.

The Tank spawns on the outside - He also throws rocks first when heading to you. You have no idea where he will come from.

  02/28/2013Version: 1.1 (complete) Views: 21057 By: Rev_deaddietViews: 21057 L4D2
Rocket Escape
Rocket Escape

Build a rocket to escape from the hordes of zombies.
inspired by Rimrook's "Let's build a rocket" map.

  02/06/2013Version: 1.3 (beta) Views: 32587 By: Tobe_The_MuteViews: 32587 L4D2
Stargate SG-4 v2
Stargate SG-4 v2 5/5 maps

Stargate Command Center resurected Bill in Goauld sarcofag, so our survivors can find the source of infection and destroy it once and for all. Problem is that its not on Earth.

Soundcache file is included but if you still dont hear conversation with Hammond or stargate sounds write in console snd_rebuildaudiocache.

  12/03/2012Version: 6 (complete) Views: 58561 By: greenhoodViews: 58561 L4D2
Crash Bandicoot: The Return of Dr. Cortex
Crash Bandicoot: The Return of Dr. Cortex 7/7 maps

2.0 Update now available with many bug fixes, new sounds and longer maps :)

Crash Bandicoot: The Return of Dr. Cortex, is a campaign based on the amazing Crash Bandicoot for the PlayStation. Survivors will have to travel through various levels to collect crystals for Dr. Cortex. Also included are a couple of survival maps and a scavenge map too with working warp room.

- If the campaign freezes or crashes shortly after gameplay starts try disabling anti-alias or disabling other addons -

  10/22/2012Version: 2.0 (final) Views: 403515 By: James Davis (LordShoot2Kill)Views: 403515 L4D2