Got a LOST ALPHA Game problem?
Don't post it here or anywhere else on Facebook. Why? The ModDB and FB formats make posts descend to the bottom with each new one and your concerns can easily be lost. Too many pages and posts can make your problems disappear.
Where to go?
The GSC Forums LOST ALPHA section is designed to post Game problems and to provide answers. In addition the format makes it easy to find previous problems posted where you may not have to ask.



For all of you that prefer to download via torrent here is the link:
After downloading, please help to seed that beast ;)

All materials are property of GSC Gameworld and dez0wave group. Header image by Jeremiah Humphries.

Have you ever dreamt about playing the old, forgotten S.T.A.L.K.E.R. ?

We were amazed by GSC's work when they released the first S.T.A.L.K.E.R. screenshots in 2002. The old design, and atmosphere was stunning and we couldn't believe our eyes. Later in 2005 things has changed. They redesigned almost all old levels. Some of them became smaller, simpler (still nice, but different), and some levels were removed. After the release in 2007 we played the game a lot, and quickly noticed that some areas are missing. We opened forums, and talked countless nights about those for almost a year. Nowdays we could say, we have a full vision about GSC's old levels, due to the collected materials, videos and forgotten screenshots. We decided to remake those stunning areas, maybe they won't be the same, but we will try everything to make them look really nice, as we always wanted to see them. In early 2009, GSC released a build from 2004, which contained many old materials. We used some of the sdk objects for the level remakes, but adjusted (and bugfixed) them for our liking, also we didn't throw out our own levels. So expect to see our own Darkscape, Dead City, Rostok Factory and some more in Lost Alpha :)

Also need to say, Lost Alpha addon is not just about levels and levels. We will try to make a somewhat, but not fully restricted alife, and deliver a lot of new, never seen features, among with some old ones, which many people wanted to see for long. If you are interested in, check the Features menu for FAQ, Interview, Features List, and many more. Also do not forget to check the gallery, and the movies. All comments are welcome, also we are glad to see suggestions too, however at this stage those won't be considered.
Thanks for your understanding!

Finally, we would like to thank to the old Stalker Team this wonderful game. Without them, S.T.A.L.K.E.R. wouldn't be a "dream-game". Big respect to: Glory, Karma, Lex, Prof, Rainbow, Frodo, Dach, Koan, Mike, Jip, Jim, Jon, Yuriy, Terazoid, Tuz, Haron, Stohe, alexmx, chugai, Oles, Zmey, Iov, Sidorovich, CyLLlKA, dandy, Descruo, dima, Olga, LeSTAT, MadMax, Man0waR, Chapaev, Cy27-dw, Shyshkin, Narrator, Rolik, Atem, Yava, and many many more :)

"the original you always wanted brought to life"
Mod of the Year 2014 I Player's Choice
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RSS Articles


News 2 comments

With the announcement/new vid of STALKER 2 I see more traffic here, so I wanted to give a quick guideline on the different LA DC versions.

LA DC 1.4007: Is a mix of all the original teams work along with the RU team. The main thing it did was get rid of a bunch of cut scenes and the “Illuminati” bits along with lots of fixes and adding in more side quests. Must use the Storyline changes v1.08 mod from the launcher for full effect of the story changes.

LB's LADC 1.4007 Compilation: My comp is just an extension of 1.4007, read all the notes. It retains the vanilla ideals, but updates/fixes some more stuff. It adds in the item usage mod for immersion that was released on the RU VK page as well. Also includes an unpacked Storyline changes v1.08 with additional changes by me, so no need to use the mod. This comp will only work with a few mods mentioned in the description. Link below:

LA DCE: Was solely made by the RU team, none of the original team (which includes me) had any involvement in it. It does have lots of cool fixes/updates, but it is more like "misery" type game play. The save system has also been changed to a check point save system. Read more about it from my article below:

*All DCE discussion is to take place under the DCE articles comments section.

**LA DC/most mods made for DC and my compilation ARE NOT COMPATIBLE WITH DCE

New Version of LA (DC Extended)

New Version of LA (DC Extended)

News 163 comments

There is a new version of LA out (DC Extended). Check out the details below for more information.

Resource for LA updates

Resource for LA updates

News 5 comments

This news post is to be used more as a resource for LA updates from the RU team/modders.

S.T.A.L.K.E.R. Lost Alpha DC 1.4007 Release

S.T.A.L.K.E.R. Lost Alpha DC 1.4007 Release

News 43 comments

We wish you a Merry Christmas with the release of Lost Alpha Developer's Cut 1.4007!

S.T.A.L.K.E.R. Lost Alpha DC 1.4005 Release

S.T.A.L.K.E.R. Lost Alpha DC 1.4005 Release

News 52 comments

We wish you a Merry Christmas with a special full release of Lost Alpha Developer's Cut 1.4005!

Add file RSS Files
LB's LADC 1.4007 Compilation

LB's LADC 1.4007 Compilation

Full Version 87 comments


S.T.A.L.K.E.R.: Lost Alpha Game Manual (updated for 1.4007)

S.T.A.L.K.E.R.: Lost Alpha Game Manual (updated for 1.4007)

Guides 55 comments

Here is the users guide for Lost Alpha. You will find the default controls, system requirements, and basic layout things in it. Have fun! Last update...

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 1 of 6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 1 of 6

Full Version 47 comments

S.T.A.L.K.E.R. Lost Alpha v1.4007 Developer's Cut download part 1/6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 2 of 6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 2 of 6

Full Version

S.T.A.L.K.E.R. Lost Alpha v1.4007 Developer's Cut download part 2/6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 3 of 6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 3 of 6

Full Version 1 comment

S.T.A.L.K.E.R. Lost Alpha v1.4007 Developer's Cut download part 3/6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 4 of 6

S.T.A.L.K.E.R. Lost Alpha v1.4007 DC 4 of 6

Full Version

S.T.A.L.K.E.R. Lost Alpha v1.4007 Developer's Cut download part 4/6

Comments  (0 - 10 of 44,462)

I'm playing Lost Alpha DC (I like it a lot), but I have a problem with my game. I come to Great Metal Factory and when I get close to a phone booth area, the game hangs and I have to force close the game.

I have tried reducing the graphic quality and Directx version, but it does not solve the problem.

These are the log's last lines:

! DetailPathManager has failed : from [-182.000000,0.072495,95.200012] to [-171.500000,-0.008291,149.799988]
! DetailPathManager has failed : from [-175.699997,-0.039160,77.000000] to [-171.500000,-0.008291,149.799988]
! DetailPathManager has failed : from [-184.100006,0.001560,91.000000] to [-171.500000,-0.008291,149.799988]


[error]Expression : assertion failed
[error]Function : CSafeFixedRotationState::create
[error]File : c:\stalker_games_src\stalker\xray-svn-trunk\xr_3da\xrgame\phvalidevalues.h
[error]Line : 81
[error]Description : dBodyStateValide(b)

stack trace:

0023:6B254743 xrCore.dll, xrDebug::fail()
0023:70A8CF11 xrGame.dll, CDialogHolder::operator=()
0023:70CFAAAA xrGame.dll, xrFactory_Create()
0023:70CFAFAE xrGame.dll, xrFactory_Create()
0023:70B307B3 xrGame.dll, CDialogHolder::operator=()
0023:70B4FABC xrGame.dll, CDialogHolder::operator=()
0023:70BD4FD9 xrGame.dll, CDialogHolder::operator=()

Is my game broken or I can save it somehow? Thanks!

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LiquidBronze Creator

Ya seems like some mod, do you have one of those NPC packs installed? Or what other mods did you install?

Are you playing vanilla DC or my comp? Because my comp is only compatible with 3 mods listed under the description.

Reply Good karma+2 votes

It worked. I'm not sure about the solution. Disabling Closed Optical Sights, Free A-Life and Darker Nights (the other two mods required starting a new game) worked, but I think the problem was not the area, was a Controller monster near, it crashed when his mind control effects started. After killing him, I enabled again those mods and all works fine now.


Reply Good karma Bad karma+2 votes

I have S.T.A.L.K.E.R. Lost Alpha v1.4007 DC (the six parts download)

I'm trying removing the mods I have installed from the launcher:
Closed Optical Sights, Extended Weather, Free A-Life, PRM Weapon Pack, Darker Nights

I this does not work I will try reloading an older save before arriving at the 100 Rads bar.

Thanks for your answer!

Reply Good karma Bad karma+1 vote

Extended Weather mod and Darker Nights mod have a love-hate relationship ..they work together or they cause crashes ..mostly the latter one

Reply Good karma Bad karma+2 votes

Looks like a mod crashing .
Try to make a new save before the point of the crash , restart the game without mods and try to get beyond that point .

Reply Good karma Bad karma+2 votes

Thanks for your answer! I have only mods from the launcher. I'm trying by removing them or find which one crashes

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I was wondering if the armor bullet protection is capped to a certain percent, and if I can increase that percent via a certain file. any idea where the file would be located?

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LiquidBronze Creator

Everything can go above 100% (I am not actually sure if there is an effect above that though), you want to look for "fire_wound_immunity" section under the name of the outfit you are trying to change in "outfit.ltx". Note that the names of the outfits in "outfit.ltx" located here: ...config\items\equipments are not always the same as the name in game.

You may need to look in ...config\text\eng for "string_table_outfit" to find the actual name, then the corresponding string id.

For example, the BP-b "Python" Merc suit is ID'ed as:

<string id="killer_outfit_">

So you would do a search for "killer_outfit_" in the "outfit.ltx" file.

If you make changes those will happen upon loading up the game next. So it is pretty easy to go back and forth with changing the numbers and testing it, by loading then exiting, until you have it right.

You would also need to unpack all the files, you can use the database extractor. Click my name to go to my profile, then check my comments, I have links to it a few posts down, then a few pages back I have how to use it.

Reply Good karma+1 vote

Hello, I have a question about Invisible Anomalies, I'm pretty sure I didn't install Invisible anomalies but in the game the anomalies are very hard to spot, not like in vanilla where you can see the deformation of space effects, other example is the lightning anomaly in Cordon, it is just a tiny lighting effect when it is triggered, did I install invisible anomalies by accident?. Is the game really supposed to be this way?

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LiquidBronze Creator

Is this for DC or DCE? If for DC, then you have "hidden anomalies" mod installed, just uninstall it under the mods section in the launcher.

If it is for DCE, please post under the DCE article section and I will delete this post.

Reply Good karma+1 vote
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Ratings closed.

Highest Rated (108 agree) 10/10

It's Lost Alpha. Should it be rated any less?

Apr 25 2014 by stooe


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