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L4d forest01 orchard.png
Chapter 1
Campaign Dam It
Dam It Chapter Chronology
Chapter 1
Chapter 2
"The C-130 Landed in small rural airstrip, avoided planes on the runway and plowed through some buildings"
Turtle Rock Studios Development Notes

Orchard is the first chapter of the Dam It campaign.

The Survivors start off in the back of the C-130 Airplane that they boarded at the end of Dead Air.

The Survivors must fight through four areas: the civilian airfield's base installations; a misty apple orchard; an elevated stretch of railroad and a shallow muddy river; and an open meadow which is subject to a never-ending spawn of Infected. The safe room is upstairs in a farmhouse located on the far side of the meadow.

The Airfield: This features a close-set environment of 'gray box' airplane hangers and exploding barrels. It is well supplied with weapons upgrades, grenades and pills. All species of Special Infected are likely to be encountered.

The Orchard: A large walled enclosure with poor visibility on account of an obscuring blanket of mist, this area is located on a hillside which dips down to an apple packing shed and storage facility. The area is heavily populated with enemies and will generate at least one hurry-up horde which swarms over the walls to attack. A useful tactic is to hand-rail one of the walls and in this way avoid a 360-degree attack.

The Railroad: Another gray-box area with many semi-complete artifacts, players follow an elevated stretch of railroad track to a shallow muddy river which they then wade across and climb a slope to the farmland beyond. Although numerous, enemies are generally dispersed on either side of the tracks and provide good sniping opportunities.

The Meadow: An wide-open undulating field with a cluster of trees and rusting car in the center. The safe room is located upstairs in the farmhouse on the opposite side. Entering the field triggers a crescendo event involving never-ending streams of Infected attacking from multiple directions. The Survivors must sprint and fight across the meadow to safety. Infected will pursue their quarry right up to the safe room door.


Also see: Tactics

All campaign walkthroughs are done on Normal difficulty in single player, and are meant to give tips on what to do and generally point out things that might otherwise be missed.

There are, of course, a few key things to always remember:

  • Stop, look, and listen.
    • Being observant might alert you to something nasty ahead of time, like a Witch, Special Infected or Tank, and allow you to prepare yourself.
  • Teamwork.
    • This cannot be stressed enough. Left 4 Dead is supposed to be a cooperative game. Communicate with your teammates, if you're playing with others, or if you're by yourself with the AI, point out things they might otherwise miss. In all cases, watch out for each other and take care of each other. You are not going to survive the zombie apocalypse by yourself.
  • Be ready for anything.
  • Don't panic.

Making your way through the Orchard won't be easy. Sight lines are poor, and Infected can come running at you from all sides. Stick together, watch each other's backs, and you'll make it through.


At the beginning, the Bot Survivors will grab:


The Survivors[]

Now that humans are controlling the Special Infected, things can only get harder. However, they can't spawn until you leave the safe room. That doesn't mean that you should let them have a good chance to find just the right spot, though! Hurry up and get your supplies, and get running!

Throughout the level, remember that you are playing against human players. They will not wait for you to come to them, and if they do, it's because they have an ambush location that could be deadly to you and your team. With this in mind, you need to keep moving. However, moving blindly could be your downfall. Move quickly, but with caution. Also, under all circumstances: stick close to your team.

Remember that in Versus, your melee is limited so you cannot properly use corner melee-spamming tactics. However, having the entire team together will be helpful as you can generally see the Special Infected and you'll be able to kill most of them before they reach you. Other than in the orchard itself, you can see quite far, so avoiding Boomers shouldn't be a problem, provided you don't get split up and bogged down in the orchard.

In the orchard itself, the Smokers and the Boomers are your primary concern. A Smoker can split up the team without anyone spotting him and it's fairly easy for a Boomer to sneak up on teams by hiding in the bushes and trees.

Remain vigilant for the Witch's cries. If you spot a Boomer not moving in the distance and staring you down while the Witch can be heard ― don't shoot! If he moves away or towards you, then you can safely assume he's not concealing a Witch. Witches, although avoidable, can be the fatal blow to the Survivors especially if there are competent Special Infected lying in wait.

As with all levels, when you know you're near the safe room, make sure you are with your teammates before you make a dash for it. If you make a break for it alone, it is not unlikely that a Hunter or a Smoker will be waiting for your arrival and possibly kill you before the others can reach you. No one can survive the infection alone. Teamwork is essential.

The Infected[]

See also: The Boomer, The Hunter, The Smoker, The Tank

They've survived an airplane crash, but you can bet they're shaken up. Now's the time. Work together to make sure they're victims of this rampant virus, one way or another.

Overall Tips

  • Any survivors that choose to run ahead of or fall behind their teammates will be much easier to seriously damage and kill. The farther away they are from their teammates, the more likely they are to be incapacitated or die before their teammates can reach them.
  • The Survivors all have outlines around them, showing their status and location. Green means they're healthy. Yellow means they're hurt. Red means they're low on health. Purple means they've been covered in Boomer bile. You can probably discern which to seek out first if possible.
  • Think like a Survivor. When you play as one, when are the worst times that something could come at you? Exploit that knowledge.
  • Teamwork, as aforementioned. Has a Boomer gotten their bile all over the Survivors? Jump one of them or a clean one. They can't see their teammates' aura until they're clean...and by then, it might be too late.
  • As much as teamwork is a strength for you and your enemies, a lack of it will be their downfall. If you can focus all of your energy on killing one of the Survivors, the rest will be that much easier to take down. Not only will they have one less gun, but they will have three Survivors to your three incapacitating Infected.

Boomers: ?

Hunters: ?

Smokers: ?

Tanks: ?

Witches: ?

Behind the Scenes[]

The Survivors start in the back of the C-130 Airplane from Dead Air because this campaign was originally supposed to bridge that campaign with Blood Harvest. Despite this, there's no indication as to what happened to the pilot himself.

Additionally, the Infected were originally supposed to crawl through the thick orchard, as noted by the developers who listed it as a glitch that they do not currently do so. This would create a special area in which all Common Infected would move similarly to a mud man from the Left 4 Dead 2 campaign, Swamp Fever.


  • The Crescendo Event takes place in open ground in front of the first safe room at the end of the level. It isn't triggered by anything other than players entering the area and leaves no explanation as to why a horde spawns to attack here.
  • Tier two weapons can be found all across the map, including within a few feet of the first starting point. They are often spawned as lone weapons, such as a single Assault Rifle.
  • As with the other levels in Dam It, multiple Tanks can spawn on this level.
Left 4 Dead Left 4 Dead 2
L4d no mercy.jpg
No Mercy
The Apartments / The Subway / The Sewer / The Hospital / Rooftop Finale Price chopper.jpg
Dead Center
The Hotel / The Streets / The Mall / The Atrium
L4d achievement survive garage.png
Crash Course
The Alleys / The Truck Depot Finale Torch-Bearer.gif
The Passing
The Riverbank / The Underground / The Port
L4d death toll.jpg
Death Toll
The Turnpike / The Drains / The Church / The Town / Boathouse Finale Midnight rider.jpg
Dark Carnival
The Highway / The Fairgrounds / The Coaster / The Barns / The Concert
L4d dead air.jpg
Dead Air
The Greenhouse / The Crane / The Construction Site / The Terminal / Runway Finale Ragin cajun.jpg
Swamp Fever
Plank Country / The Swamp / Shanty Town / The Plantation
L4d blood harvest.jpg
Blood Harvest
The Woods / The Tunnel / The Bridge / The Train Station / Farmhouse Finale Weatherman.jpg
Hard Rain
The Milltown / The Sugar Mill / Mill Escape / Return To Town / Town Escape
Supreme sacrifice.png
The Sacrifice
The Docks / The Barge / Port Finale Bridge burner.jpg
The Parish
The Waterfront / The Park / The Cemetery / The Quarter / The Bridge
L4D last stand.jpg
The Last Stand
The Lighthouse Streamcrosser.jpg
Cold Stream
Alpine Creek / South Pine Stream / Memorial Bridge / Cut-throat Creek
L4d outbreak.jpg
Dam It
Orchard / Campground / Dam Achievement Still Standing.png
The Last Stand
The Junkyard / Lighthouse Finale