S.T.A.L.K.E.R.: Shadow of Chernobyl

From PCGamingWiki, the wiki about fixing PC games
Jump to: navigation, search
Cleanup icon.svg
This page may require cleanup to meet basic quality standards. The specific problem is: patches/mod sections are too dispersive. You can help by modifying the article. The discussion page may contain useful suggestions.
S.T.A.L.K.E.R.: Shadow of Chernobyl
Shadow of Chernobyl Box.jpg
Release dates
March 20, 2007
S.T.A.L.K.E.R.: Shadow of Chernobyl at WineHQ
S.T.A.L.K.E.R.: Shadow of Chernobyl at Steam Charts
S.T.A.L.K.E.R.: Shadow of Chernobyl at SteamDB
 S.T.A.L.K.E.R.: Shadow of Chernobyl at Wikipedia
S.T.A.L.K.E.R.: Shadow of Chernobyl 2007
S.T.A.L.K.E.R.: Clear Sky 2008
S.T.A.L.K.E.R.: Call of Pripyat 2010
S.T.A.L.K.E.R.: Lost Alpha (Unofficial) 2014

Key points

Information Installing ZRP is greatly recommended as it eliminates most bugs without modifying the game's experience.
Advantage Large modding community.[1][2]
Information Use the Multi-Patch to replace the GameSpy master server.

General information

More information Official website
More information The S.T.A.L.K.E.R. Wiki
More information GOG.com Community Discussions for game series
More information GOG.com Support Page
More information Steam Community Discussions
More information Steam Users' Forums
More information Official forums
More information TweakGuides guide


Source DRM Notes Keys
Amazon.com DRM details are not known
GamersGate Availability Table Icons - Steam.svg
GOG.com DRM-free
Steam Availability Table Icons - Steam.svg

Essential improvements[edit]



The Multi-Patch replaces the GameSpy master servers and optionally forces Vsync. The Steam version is already patched.


Information This is the latest official patch for the game. It is best suited overall for Single Player as most multiplayer servers use v1.0006


Information Although this is an official patch, it was recalled by the developers due to the extra bugs it caused. It should only be used to gain the optimal multiplayer experience from the game (most servers use v1.0006). Do NOT install this patch otherwise


Information Some mods only work with v1.0004. Only use this patch if those mods have no updated version that work with newer versions of the game
Information For a guide on how to downgrade a copy of the game from v1.0005 to v1.0004, see Downgrading to v1.0004

v1.0008 (Unofficial)[edit]


Downgrading to v1.0004[edit]

Fix Downgrading to 1.0004

  1. Open the Registry Editor:
    • Vista and later: open the Start screen/Start menu, type regedit and press Enter.
    • Windows XP: press Win+R, type regedit and press Enter.
  3. If you can't find it there, search for "installvers".
  4. If there is no "InstallLang" value located here, you need to add a string and enter the language code you use (for the US version, this is "en").
  5. Install the 1.0004 patch from above links (choose the version corresponding to the main language used in-game) which will install the files into a THQ folder in your Program Files by default.
  6. Copy all these files into your STALKER installation's gamedata folder.
  7. If you encounter an error saying the patch can only be used for "[en]", then replace the aforementioned language value with whatever is it in the brackets in the error message.
  8. Delete gamedata.dbc and gamedata.dbd as these are 1.0006 only files.

Skip intro videos[edit]

Fix Start game with -nointro parameter

Xetrill's Modified LuaJIT library[edit]

Advantage Users has reported increased performance, especially in script-heavy mods.

Fix Use replacement files

  1. Download the modified library.
  2. Extract the content of LuaJIT_EXPERIMENTAL_latest.zip/bin in <path-to-game>\bin.


Information It is recommended to backup the conflicting files before replacement.


Information The STALKER series has garnered a dedicated following which includes a very active modding community, most of which is based in Russia. Translations are available for most of the popular mods. The best way to determine which type of mod you will enjoy is by first trying the vanilla game out (with ZRP for bugfixes). Below are some basic recommendations.

Fix Preparing the game for mods

To use mods with STALKER, you will first need to edit your fsgame.ltx - file found under the game's install folder.

  1. Go to the installation folder.
  2. Open fsgame.ltx with a text editor.
  3. Find line:
    $game_data$ = false| true| $fs_root$| gamedata
  4. Change it to:
    $game_data$ = true| true| $fs_root$| gamedata


Information If the mod comes with an executable, you may need to point it manually to the correct installation folder. If it comes as a file package, extract and copy the mod's contents into your gamedata folder.
Information To patch your mod or to add new ones on top, overwrite and merge your installation's gamedata folder with the new one.

Fix Using Smart Mod Manager

Download the program at Codeplex. The program installs the mods from .zip or directly from the folder. It will warn you if there are issues with other mods combined; then you have to choose one of them.

  1. First select the game (Stalker: Shadow of Chernobyl or Stalker Clear Sky)
  2. Set up the right language, version and folder of the game
  3. Go to the gametab and install mods from .zip or folder.
Information Enable/Disable mods also possible in the manager

Below is a list of popular mods:

  • Zone Reclamation Project is a bug fix mod that tries to keep the game as vanilla as possible. Heavily recommended on a first playthrough.
  • Float32 adds many new features while increasing performance. It changes nothing about gameplay or looks (except high-quality effects) and is widely considered a must. It is also included in many large overhaul mods for SoC, so research first before trying to merge it with other mods.
  • Shaders MAX - is a mod that improves both looks and performance of the game. It includes Float32 as a component, along with other various shader mods. Be wary when trying to combine with other mods which may already contain their own shader improvements.
  • Complete Mod 2009 is one of the most popular but also controversial mods. It contains major bug fixes, A.I improvements, upgraded shaders, new higher resolution textures, sounds, music, weather and visual effects but also a large amount of important changes to the gameplay core that may spoil the STALKER experience for some. A list of changes can be found on its MODDB page. (note: contrary to what this mod's page would have you believe, the 2012 version of Complete has not been released. "2009" is the most recent version.)

Game data[edit]

Configuration file(s) location[edit]

Windows %PUBLIC%\Documents\STALKER-SHOC
Information CD key, language and GameSpy ID are stored in HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GSC Game World\STALKER-SHOC

Save game data location[edit]

Windows %PUBLIC%\Documents\STALKER-SHOC\savedgames
Information You can modify the save game data location by editing fsgame.ltx in gamedata.

Save game cloud syncing[edit]

System Native Notes
Steam Cloud Impossible
GameSave Manager Native

Video settings[edit]

Basic video settings
Advanced video settings (Vsync and 60Hz frequency not visible)
Graphics option Option WSGF Notes
Widescreen resolution Native WSGF WS Silver.svg Some HUD elements may be stretched.
Multi-monitor Native WSGF MM Silver.svg Some HUD elements may be stretched.
4K Ultra HD Native WSGF Incomplete.svg
Field of view (FOV) Hackable See Field of view (FOV)
Windowed Native
Borderless fullscreen windowed Hackable Use GameCompanion or similar software.
Anisotropic filtering (AF) Native
Anti-aliasing (AA) Impossible A slider is included but doesn't actually work.
Vertical sync (Vsync) Hackable In-game Vsync option is broken.[3] Use the Multi-Patch to fix it.
High frame rate Native No frame rate or refresh rate cap.[4]

Field of view (FOV)[edit]

Fix Install FOV Switcher

  1. Download FOV Switcher and extract it.
  2. Copy the appropriate exe file to the BIN folder inside of the installation folder and launch it.


Information It's highly recommended not to play online with the FOV hack installed.
Information To restore the settings to default, use the patcher again.

Input settings[edit]

Controls menu
Keyboard and mouse Native Notes
Remapping Native
Mouse acceleration Impossible
Mouse input in menus Native
Mouse Y-axis inversion Native
Controller support Impossible

Audio settings[edit]

Audio menu
Audio options Native Notes
Separate volume controls Native SFX and music only.
Surround sound Native Up to 7.0 output[5]
Subtitles Impossible
Closed captions Impossible
Mute on focus lost Native
EAX support Native EAX 2.0


Language UI Audio CC Notes
English Native Native Native Some unimportant non-conversation speech is Russian (e.g. jokes).
French Native Native Native
German Native Native Native Some unimportant non-conversation speech is Russian (e.g. jokes).
Italian Native Unknown Native
Polish Native Native Native Only available in Polish retail release. Not available digitally.
Russian Native Native Native Steam version only has Russian in Russian version.
Spanish Native Unknown Native
Turkish Native Impossible Native A Turkish fan patch is available here. (Mirror)
Ukrainian Native Native Native An official Ukrainian patch is available here, can be installed over the Russian version of the game only.


Information Multiplayer servers can optionally use BattlEye anti-cheat protection.

Multiplayer types

Type Native Players Notes
LAN play Native 32
Online play Native 32 Use the Multi-Patch to replace the GameSpy master server.

Connection types

Type Native Notes
Matchmaking Impossible
Peer-to-peer Native
Dedicated Native
Self-hosting Native
Direct IP Native


Protocol Port(s) and/or port range(s)
TCP (outbound) 3783, 6515, 6667, 13139, 27900, 28900, 29900, 29901

Issues fixed[edit]

"Unable to connect to master server" error[edit]

Information The GameSpy master server has been shut down; use the Multi-Patch.

Other information[edit]


Technical specs Supported Notes
Direct3D 8, 9 Running the game in DirectX 9 mode is only possible with dynamic lighting enabled.
64-bit executable Impossible


Middleware Notes
Physics Open Dynamics Engine
Audio OpenAL

Optimal settings[edit]

Information Lowering Vision- and Lightning distance, Object quality to 50% improves the performance without suffering major graphical visuals.
Information Reducing Grass Density a point or two may help stuttering issues.

Remove head bob[edit]

Fix Edit User.LTX

  1. Open User.LTX with a text editor.
  2. Change cam_inert to 0.
  3. Save changes.


Information It can also be changed while in game using the console cam_inert X where X stand as a value, which you might want to translate into 0.1

Enable FPS counter[edit]

Fix Use command console

  1. Open the in-game console by pressing ~.
  2. Enter: rs_stats 1

Shorter load times[edit]

Fix Start game with the -noprefetch parameter

Glitchy shadows using widescreen resolutions[edit]

Fix Edit User.LTX

  1. Open User.LTX with a text editor.
  2. Change r2_sun_near_border from the default 0.66 to 1.0.

Large Address Aware[edit]

Improves stability on systems with at least 3GB RAM by allowing the application to use more than 2GB RAM.

System requirements[edit]

Minimum Recommended
Operating system (OS)
2000 SP4, XP SP2
Processor (CPU) AMD Athlon XP 2200+
Intel Pentium IV 2.0 GHz
AMD Athlon 64 X2 4200+
Intel Core 2 Duo E6400
System memory (RAM) 512 MB 1.5 GB
Hard disk drive (HDD)
10 GB
Video card (GPU) ATI Radeon 9600
Nvidia GeForce 5700
128 MB of VRAM
DirectX 8 compatible
ATI Radeon X1850
Nvidia GeForce 7900
256 MB of VRAM
DirectX 9.0c compatible


  1. Stalker Mods, Stalker Maps, Stalker Downloads
  2. Mods - S.T.A.L.K.E.R. Shadow of Chernobyl Game - Mod DB
  3. TweakGuides.com - STALKER: Shadow of Chernobyl Tweak Guide - In-Game Settings (Pt.2)
  4. New 120Hz Games Report
  5. PC Gaming Surround Sound Round-up