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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Hey, hey hey! We are here, as we promised a month ago. It was a long road up until now, but there is finally a sun shining over us brightly. After almost three years, we can finally present you Lost Alpha Developer's Cut. We decided to release it as a patch for now, but after some hotfixes, we will create a full release of Lost Alpha containing all patches and DC as well! The files will be uploaded soon, and they will need to be authorized by ModDB crew, so be patient, and in the end... Have Fun!
Here is a little tutorial: After you download the DC patch, which is quite big (around 2.3gb packed) you need to unpack the zip file (with winrar or any archiving tool) to a clean directory, or to your desktop. But before you would do anything with those files, don't forget, that you need to have Lost Alpha patched up to the 3rd public patch (1.3003) first! If you don't have that installed, DC won't work at all. So if you have LA installed and patched up till 1.3003, run the DC patch installer and wait until it finishes. You can now run the game with the well known icon on your desktop. You will quickly notice the version number in bottom left corner, saying: "Lost Alpha ver. 1.4000 Developer's Cut". If you see that, then you are ready to play the game. Have fun, and if you have questions or something to report, send email to or post here on the chat window, and be patient, someone will surely respond.EMPTY LINE
Here is the final changes log of LA DC 1.4000: click here to open it!

Lost Alpha Developer's Cut v1.4000!


Lost Alpha Developer's Cut release announcement

Lost Alpha Developer's Cut release announcement

News 77 comments

Lost Alpha - Developer's Cut release announcement!

A little status update for the holidays!

A little status update for the holidays!

News 41 comments

Here is a small update and summary about our current tasks with LA:DC!

It's been another year!

It's been another year!

News 16 comments

Christmas is knocking on our doors again, chestnuts roasting on open fires and Jack Frost nipping at our nose. An other year passed by, which brought...

S.T.A.L.K.E.R.: Lost Alpha Developer's Cut Announcement

S.T.A.L.K.E.R.: Lost Alpha Developer's Cut Announcement

News 134 comments

In this news post you can read about the planned developer's cut release!

Add file RSS Files
Lost Alpha Developer's Cut v1.4002 Small Patch

Lost Alpha Developer's Cut v1.4002 Small Patch

Patch 173 comments

Lost Alpha Developer's Cut v1.4002 small patch for those, who already own 1.4000!

Lost Alpha Developer's Cut v1.4002 Big Patch

Lost Alpha Developer's Cut v1.4002 Big Patch

Patch 374 comments

Lost Alpha Developer's Cut v1.4002 repacked version, containing pre-dc v1.3003 + dc v1.4000 + 1.4001 + v1.4002!

S.T.A.L.K.E.R. Lost Alpha v1.4000 Developer's Cut

S.T.A.L.K.E.R. Lost Alpha v1.4000 Developer's Cut

Patch 407 comments

S.T.A.L.K.E.R. Lost Alpha v1.4000 Developer's Cut download!

S.T.A.L.K.E.R.: Lost Alpha SDK Addon 1

S.T.A.L.K.E.R.: Lost Alpha SDK Addon 1

SDK 25 comments

Here is the 1st addon package for Lost Alpha SDK v.2.6.

S.T.A.L.K.E.R.: Lost Alpha SDK v.2.6 beta

S.T.A.L.K.E.R.: Lost Alpha SDK v.2.6 beta

SDK 29 comments

Here is the S.T.A.L.K.E.R.: Lost Alpha Software Development Kit (SDK) v.2.6 beta release! It contains the basic editors and tools we used for creating...

S.T.A.L.K.E.R.: Lost Alpha v1.3003 Patch

S.T.A.L.K.E.R.: Lost Alpha v1.3003 Patch

Patch 471 comments

Here is the long awaited third patch for S.T.A.L.K.E.R.: Lost Alpha. Due to the changes in storyline and engine, it's required to start a new game after...

Comments  (0 - 10 of 39,695)

Nice work you guys did here, but I have a small problem. I just did a fresh install of LA 1.4000 and then installed the patch 1.4002, and when I start the game I only get a black screen with an error running in the background (\ui_font_hud_01.ini). I already tried a lot of things like: reinstall, relocate, update drivers and stuff, run as admin and in compatibility mode. Some guy even suggested downloading the 1.4004 patch and I actually found one on some third world russian site but that didn't help, I still have the same problem... Any help would be much appreciated. :)

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Hello ... you installed the wrong files .. you need version 1.3000 Part 1 - 4 and then only the 1.4002 Big patch .. nothing else.

Let us know how it goes ;)

here you get 1.3000 Part 1 - 4

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Thanks m8! It works now! More or less :D now i have a different problem: When I launch the game with DX11 (max or min settings) I get around 6-10FPS after I leave Sid's bunker. When I launch with DX9 I get a crash when the MC wakes up and looks at his hands. When I load a DX11 save (when you're talking with Sid) with DX9 everything is pitch black... I can move and hear sounds etc. but it's like a black screen except I can see the light sources. Static lightning works well but meh... Tried messing with the settings but nothing helps :/ My specs:
FX 9590 4.7GHz Turbo off ZI-FF+ 2x140mm vents, MAX 50C under load
2x4GB HyX Beast running at 2133MHz
RX460 Strix 4GB running at base settings, no OC or Gaming mode
I installed the game on a WD Blue 1TB HDD
Also, Im running W7 Ultimate

Thanks in advance!

Edit: I'm currently checking the usage with Afterburner.
Edit2: I've checked everything:

VGA Usage 45%
CPU Usage on core1 14%
CPU Usage from core2 to core8: 3-10%
MEM Usage 4,5-5GB
Maxed out on DX11 sadly I cant use 1080p in most games because I'm playing on a TV, so all of this is 720p
And I got a majestic 2,8 - 3,4 FPS

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Ok i guess you touched the Advanced Graphic settings right ? :)

lets say you set shadowmap to high , that means the Game is rendering the Shadows with 8k resolution .. crazy :P

So delete your user.ltx then choose one of the Graphic Presets and dont touch the advanced settings , cause they are still in development

let me know if this helped you out :)

Reply Good karma Bad karma+4 votes

Well, I tried setting everything to low with DX11 (except textures, lighting dist., grass, and the upper sliders mostly) and I had like 10-12FPS. Then as you said I deleted user.ltx and started with basic maximum settings and now I have 45-60FPS... You're my savior man, thanks much!

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Youre Welcome , have a good Game ;)

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Hello Devs/Modders ! Just discovering the mod, aside from the unfortunate hard crashes and some questionable game design choices (military respawns at each map change for example), this is one of the best game I've ever played ! And that's coming from a STALKER veteran ! (+1500 hours total on 3 main games together)

It looks like you are working on a new patch for the game, if it is true, I'm very happy to hear that, also I was wondering a few things, is it possible to alter AtmosFear settings in the game to have a brighter night and only hemisphere lighting ? ultra dark night + full sun and hemisphere lighting make it hard to enjoy on a TV due to very whitewashed oriented colors and too dark forced contrasts, can work well on an OLED screen, but unfortunately OLED TVs are very expensive. So if it is not possible, that would be very cool to be able to tweak those settings.
And for the very hard question, since X-Ray engine runs on a single CPU Core, is it possible that even in a distant future, the engine can support more cores for rendering ? I heard of a project called OpenXRay, does that mean the X-Ray engine went open source somehow ?
Well anyways that's a lot, thank you for reading !

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haha cant beat me for being a STALKER veteran i been playing since 2002 5 years before it went world wide in 2006/7

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dezodor Creator

Hi, glad you like our work. The upcoming patch has a reworked weather and some shaders, if modders haven't made such yet, we will release a "brighter nights addon" for the game to the "addons" menu after the release.

LA has multicore support, but on that level, which we could squeeze out from this old engine. When the game is running actively (not put down to taskbar), it does use more cores, although not on max. We also created multicore support for game assets loading, so creating new game, or loading saves became much faster as well. About xray engine being open source: the engine sources were leaked 2 years ago, but they aren't released officially, although GSC did not request dmca takedown, they did not let anyone to use the engine for profit oriented purposes, or engine parts being used in other games.

Reply Good karma+4 votes

Amazing, thanks a lot :) for atmosfear the idea was to have the choices for when you install it (for clear sky for example it asks night brightness level and complexity of sun lighting)

Can't wait for the next patch ! We are in intense roleplay with friends since last week !

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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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