Left 4 Dead is a FPS with a strong coop mode, that was developed by Turtle Rock Studios and published by Valve for PC Windows and the Xbox 360 in 2008. The Left 4 Dead beta characters were changed, and at the Electronic Arts E3 2008 press conference, Valve revealed a new characters design for the survivors. As we can read on Wikipedia, Left 4 Dead underwent many phases of development; influenced by playtesting, Turtle Rock Studios removed many of the features that were originally in the game. Another significant element removed was a long introduction between campaigns; because the game is designed for replayability, it was difficult to hold the player’s attention for repeated viewings of cut scenes, so they were dropped in favor of a sparse narrative.
Also, the game started out with one big city design with many routes for the survivors, but playtesters were confused when they began to play, and later they always chose the same route; ultimately Turtle Rock Studios cut the city maps into the first “No Mercy” and “Dead Air” campaigns.
Here’s a comparison between the old characters (top) and the new ones (below):

As Nastykill has made us to notice, at the Official L4D Blog we can find a lot of interesting infos and screens / videos from the game development, like the early experiments with the lights in the backgrounds and some test cutscenes. Some more screenshots from an early build show the beta characterts and a couple of beta areas.
At Left 4 Dead Wikia we can read a lot of info about the game’s development.
Upgrades are a scrapped feature that can still be found hidden in the game’s code, but they can only be activated by using an hack command. Some of these upgrades are:
A small upgrade system is implemented in Left 4 Dead 2, including the Laser Sight originally meant for Left 4 Dead.
Originally the melee weapons were supposed to break after prolonged use, but the development team ultimately decided against it after testing. Break sounds for the Axe and Frying Pan weapons can still be found in the game files.
The Hunter has an unused animation of it hanging upside-down. The Hunter’s ability was originally to become invisible. It did this when backed up against a wall, then the pounce ability can be used. For some reason, it was cut to just leaping, possibly due to that Left 4 Dead tries to keep a realistic theme, and an invisible Infected may have simply been too far-fetched. It also could regenerate, but was cut along with the invisibility.
The original design of the Smoker was to “pop in” to the Survivor group in a cloud of smoke, seize any Survivor, and “pop out” again to leave the unlucky Survivor stranded. Valve changed the design, however, saying it was “too challenging for the players.” This design has never been seen in any video footage, suggesting that it was dropped early in development.
A later video shows that the player took something called “poison damage” from a Smoker. When a person was affected by poison damage, the damage inflicted would turn into temporary health.
The Screamer was a Special Infected in the early stage of game development, preceding the Witch and the Boomer’s vomit attack. The Screamer did not have any actual attacks: if agitated enough, it would run off to hide. Once hidden, it would let out a scream, attracting a horde, like the Boomer’s bile. It was therefore important to kill the Screamer as quickly as possible while it tried to run off.
Originally, the Witch was to attack the entire group upon being startled. However, this was cut from the final game because it was deemed too difficult as she would often wipe out the whole group with little trouble.
Originally, Valve intended Zoey and Francis to have a relationship, but this was deemed to be “distracting” by the play-testers. In her cut quotes, Zoey picks on him often [3]. Although their former relationship is no longer very evident, she still seems to be friendly towards him (“Groovy,” which was something he’d said before). In The Passing, she’s baffled by Rochelle showing an attraction to Francis, and claims she’s going to throw up. On the other hand, she finds it cute that Francis still has “that side of him” deep down despite his tough guy attitude when he flirts with Rochelle.
Thanks to DCodes7 and Ace.Dark for the contributions!
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U64 is an archive with articles, screens and videos for cancelled, beta & unseen videogames. Every change & cut creates a different gaming experience: we would like to save some documents about this evolution for curiosity, historic and artistic preservation.
11 Responses to Left 4 Dead [X360 PC - Beta]
Nastykill
January 22nd, 2009 at 4:45 pm
Bello,nel blog ufficiale potete trovare tantissime altre cose,come un’immagine del gioco e vari filmati beta.Consiglio di agggiungere il materiale perchè è molto.
http://www.l4d.com/blog/
monokoma
January 25th, 2009 at 3:20 am
Grazie per il link Nastykill! Aggiunto le foto e i video appena possibile :D
Stephen
June 4th, 2010 at 7:07 pm
This Is Just For , Left 4 Dead 2. I Was Playing , The Passing And Found Something Strange. Remember How Bill Can Be Found Dead?. If You Look In The Background On The Passing Poster Bill Is Not Dead. I Wonder If He Was Made To Help You When They Were Still Working On The Level?.
zonnic
July 7th, 2010 at 12:37 pm
There is also a never used infected “the screamer”, they even say it in the maker commentary in the game, and there is in l4d2 also a unused infected “the haggard” but it was cut in early stages of the game
Unknown.
August 10th, 2010 at 2:13 am
Where Can You Find Pictures For “The Screamer” & “The Haggard?.
Unknown
October 10th, 2010 at 10:25 pm
Can you hack Left 4 Dead on a Xbox 360 to get the Kevlar Vest?. Also please let me know if there are any beta copys of the game / data of the beta survivors.
Anonymous
October 12th, 2010 at 3:05 pm
“The Haggard” (I think):
http://www.moddb.com/events/left-4-dead-concept-art-contest/images/haggard
Unknown
October 15th, 2010 at 3:54 am
I have heard of “The Haggard”. How can you insert him into the game & what Left 4 Dead?.
Unknown
October 15th, 2010 at 2:49 pm
Oh and nevermind what I said about Bill in The Passing. The Sacrifice is out now.
blah
December 5th, 2010 at 9:45 pm
sdfasfasdfsdfafsdafblahblahblahafsdkfsaklsfalkblahblahblah! im infected blahblahblah
Gavin Tobiasson
December 14th, 2010 at 3:33 pm
You nailed the writing for other people thing too