Left 4 Dead 2
Left 4 Dead 2 is a single-player and multiplayer co-operative survival horror FPS game.
Today's Top Maps
6 Maps Co-Op Versus Campaign
THIS IS THE LAST OFICIAL FROM ME Emilio3 the developer Symbyosys V12: is comi... More >
Updated 08/07/14
Uploader emilio3
Author Emilio3

Rating
2 Zelda L4D2: The Hyrule Fantasy
2 Maps Co-Op Campaign
Reproduced the NES version of The Legend of Zelda Map. Obtain gold keys and c... More >
Updated 08/21/19
Uploader Herbius
Author Zteer

Rating
3 DeadCity II Campaign
6 Maps Co-Op Versus Campaign
Kill plenty of zombies starting in RiverSide (city) then battling through the... More >
Updated 10/19/10
Uploader ilcannibal
Author ilcannibal

Rating
4 [家乡]
5 Maps Co-Op Survival
Hello everyone, I am Huang He. This is my first official map. After three yea... More >
Updated 08/07/19
Uploader o0DarkQ0o
Author [000]

Rating
5 Deathcraft II
6 Maps Co-Op Campaign
2.1 released, hopefully there's no more broken or missing models. As the last... More >
Updated 11/05/12
Uploader rtsdeathreaper

Rating
6 Divine Cybermancy part1-2 (only maps)异度神召地图文件
7 Maps Co-Op Campaign
Ported to E.Y.E.: Divine Cybermancy. Streum On Studio I hope you can play th... More >
Updated 06/27/19
Uploader MLUI

Rating
7 The Hive
5 Maps Co-Op Survival
The campaign has just had a massive update! Can you still escape The Hive? T... More >
Updated 08/20/18
Uploader texeon
Author Texeon

Rating
8 Haunted Forest v4
4 Maps Co-Op Versus Campaign
Added the line addonContent_Versus 1 in to the addoninfotext.txt file so you ... More >
Updated 07/05/18
Uploader Herbius
Author Dr.Boo

Rating
9 Day Break
5 Maps Co-Op Survival Versus
It's been a long road since I started this project shortly before Left 4 Dead... More >
Updated 09/01/17
Uploader DannBo
Author DannBo

Rating
10 Yama
5 Maps Co-Op Survival Versus
A 5-map campaign set in various locations throughout Japan. Survivors start i... More >
Updated 12/20/12
Uploader surgeon

Rating
Popular Content (Today)
6 Maps Co-Op Versus Campaign
THIS IS THE LAST OFICIAL FROM ME Emilio3 the developer Symbyosys V12: is comi... More >
Updated 08/07/14
Uploader emilio3
Author Emilio3

Rating
2 Zelda L4D2: The Hyrule Fantasy
2 Maps Co-Op Campaign
Reproduced the NES version of The Legend of Zelda Map. Obtain gold keys and c... More >
Updated 08/21/19
Uploader Herbius
Author Zteer

Rating
3 DeadCity II Campaign
6 Maps Co-Op Versus Campaign
Kill plenty of zombies starting in RiverSide (city) then battling through the... More >
Updated 10/19/10
Uploader ilcannibal
Author ilcannibal

Rating
4 PUBG - Tactical Black HK-416 [M16]
Audio Weapons
The HK-416, a German assault rifle and is manufactured by Heckler und Koch. ... More >
Updated 07/06/19
Uploader TheWolf115

Rating
5 [家乡]
5 Maps Co-Op Survival
Hello everyone, I am Huang He. This is my first official map. After three yea... More >
Updated 08/07/19
Uploader o0DarkQ0o
Author [000]

Rating
6 Deathcraft II
6 Maps Co-Op Campaign
2.1 released, hopefully there's no more broken or missing models. As the last... More >
Updated 11/05/12
Uploader rtsdeathreaper

Rating
7 Divine Cybermancy part1-2 (only maps)异度神召地图文件
7 Maps Co-Op Campaign
Ported to E.Y.E.: Divine Cybermancy. Streum On Studio I hope you can play th... More >
Updated 06/27/19
Uploader MLUI

Rating
8 Rochelle Black Demon
Miscellaneous Survivors
Enjoy Rochelle Black Demon and Tatto and pants Purple :D More >
Updated 08/21/19
Uploader DarkKilled
Author DarkKilled

Rating
9 The Hive
5 Maps Co-Op Survival
The campaign has just had a massive update! Can you still escape The Hive? T... More >
Updated 08/20/18
Uploader texeon
Author Texeon

Rating
10 Haunted Forest v4
4 Maps Co-Op Versus Campaign
Added the line addonContent_Versus 1 in to the addoninfotext.txt file so you ... More >
Updated 07/05/18
Uploader Herbius
Author Dr.Boo

Rating
Popular Content (Monthly)
5 Maps Co-Op Survival
Hello everyone, I am Huang He. This is my first official map. After three yea... More >
Updated 08/07/19
Uploader o0DarkQ0o
Author [000]

Rating
2 Z-PTZ v2 (Fixed)
6 Maps Co-Op Campaign
Added stringtable to all maps. One of the underrated maps i've seen. All cre... More >
Updated 07/23/19
Uploader Godzx329
Author DarthDed

Rating
3 Divine Cybermancy part1-2 (only maps)异度神召地图文件
7 Maps Co-Op Campaign
Ported to E.Y.E.: Divine Cybermancy. Streum On Studio I hope you can play th... More >
Updated 06/27/19
Uploader MLUI

Rating
4 Left Turn: Silent Hill 3 Tribute
7 Maps Co-Op Campaign
The survivors take the road north from Liberty Mall, only to run low on suppl... More >
Updated 07/29/19
Uploader Bluecrescento

Rating
5 Tokyo Dark (work in progress)
4 Maps Co-Op Campaign
Campaign Details: This is map is based of Tokyo Dark. Since the game is in 2... More >
Updated 07/18/19
Uploader Kryogen
Author Kryogen

Rating
6 Deathcraft II
6 Maps Co-Op Campaign
2.1 released, hopefully there's no more broken or missing models. As the last... More >
Updated 11/05/12
Uploader rtsdeathreaper

Rating
7 Qiuming City (Fixed)
4 Maps Co-Op Campaign
Added stringtables to 3 out of 4 maps. "chinese city This map has some diffi... More >
Updated 07/20/19
Uploader Godzx329

Rating
8 Wild Ride
2 Maps Co-Op Versus Campaign
Story: A custom campaign that took about 8 months to draw in spare time so fa... More >
Updated 07/22/19
Uploader chatyak
Author chatyak

Rating
10 New gun MOD V3 (第三版枪械MOD)
Audio Weapons
【介绍】这个是枪械武器MOD包,里面有全部的武器皮肤和枪械声音,而且是全新的。里... More >
Updated 07/21/19
Uploader HCHA
Author Unknown

Rating
Symbyosys v12 Left 4 Dead 2
Uploader: emilio3
Author: Emilio3
THIS IS THE LAST OFICIAL FROM ME Emilio3 the developer Symbyosys V12: is coming the new symbyosysfinal.vpk with one or two news maps. please not download the copy paste fuck symbyosysv13.vpk. thanks 
1ª: download addons vpk symbyosysv12 
2ª: download addons vpk symbyosystexturesfull vercion 0.3 fix textures misil launcher in map 4
see in changelog
play in my server 25 players supercoop
UKS Coop.25 (2.1.5.3)
connect 37.187.155.71:27025 
must download symbyosystexturesfull.vpk  not see in pink and black

If you would like to share your own revisions of this addon , please rename the files! I do not want to create confusion for end-users and it will avoid conflict and negative feedback on the official versions of my work. If you choose to keep the same file names for your revisions, it will cause users to assume that the official versions are the source of any problems your revisions may have. This is to protect you (the reviser) and me (the developer)! Thank you!
View Changelog (v12 Complete)
Updated: 08/07/14   •   Views: 362,980  •  symbyosysv12.zip (376MB)