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Grand Theft Auto IV

From PCGamingWiki, the wiki about fixing PC games
Grand Theft Auto IV
Grand Theft Auto IV cover
Developers
Rockstar North
Windows Rockstar Toronto
Publishers
Rockstar Games
Japan Capcom
Russia 1C-SoftClub
Engines
RAGE
Release dates
Windows December 2, 2008
Reception
Metacritic 90
IGDB 88
Taxonomy
Monetization One-time game purchase, Expansion pack
Microtransactions None
Modes Singleplayer
Pacing Real-time
Perspectives Third-person
Controls Direct control
Genres Open world, Action
Vehicles Automobile, Bus, Helicopter, Motorcycle, Naval/watercraft
Art styles Realistic
Themes Contemporary
Series Grand Theft Auto
Grand Theft Auto IV on HowLongToBeat
Grand Theft Auto IV on IGDB
Grand Theft Auto IV guide on StrategyWiki
Grand Theft Auto IV on MobyGames
Grand Theft Auto IV on Wikipedia
Grand Theft Auto 1997
Grand Theft Auto 2 1999
Grand Theft Auto III 2002
Grand Theft Auto: Vice City 2003
Grand Theft Auto: San Andreas 2005
Grand Theft Auto IV 2008
Grand Theft Auto: Episodes from Liberty City 2010
Grand Theft Auto: iFruit 2013
Grand Theft Auto: San Andreas 10 Year Anniversary 2014
Grand Theft Auto V 2015
Grand Theft Auto: Chinatown Wars 2021
Grand Theft Auto: The Trilogy – The Definitive Edition (series)

Warnings

For Games for Windows - LIVE on Windows 8 or later, install the latest Games for Windows - LIVE software.

Grand Theft Auto IV is a singleplayer third-person open world and action game in the Grand Theft Auto series.

The PC version allows importing music files for playback in a custom radio station. Rockstar Games has removed some music tracks from the game due to expired licenses as it has done with Grand Theft Auto: Episodes from Liberty City. See Restore removed music

Visual effect shaders are known to be broken in the PC release when compared to both the Playstation 3 and the Xbox 360 releases.[1] See FusionFix for partial fixes. The game has an extensive modding community, with mod compatibility split between the Complete Edition and older, retail versions. It is also notorious for poor performance (especially on maxed out settings) and frame-pacing issues, even on high-end systems[2]. Lowering settings and/or DXVK are strongly advised.

General information

GTAForums - Grand Theft Auto IV Discussion
GTA Modding - A wiki hosting mod-information for the Grand Theft Auto series.
GTA Network - A huge network of fansites all dedicated to the Grand Theft Auto series.
Rockstar Support
Steam Community Discussions

Availability

Source DRM Notes Keys OS
Retail
Icon overlay.png
Disc check (requires the CD/DVD in the drive to play)
CD key
Requires online activation
Games for Windows - LIVE and SecuROM PA DRM.[Note 1] Additionally uses SecuROM 7 DRM for disc checking. Released on 2 DVDs.
Icon overlay.png
Windows
Official website
Icon overlay.png
Complete Edition.
Windows
Steam
Icon overlay.png
Icon overlay.png
Complete Edition.
Windows
Amazon.com (unavailable)
Icon overlay.png
Icon overlay.png
Requires online activation
The Complete Edition is also available.
Windows
GamersGate (unavailable)
Icon overlay.png
Icon overlay.png
Requires online activation
The Complete Edition is also available.
Windows
Games for Windows Marketplace (unavailable)
Icon overlay.png
[3]
Windows
Gamesplanet logo.svg (unavailable)
Icon overlay.png
Icon overlay.png
Requires online activation
The Complete Edition is also available.
Windows
Green Man Gaming (unavailable)
Icon overlay.png
Icon overlay.png
Requires online activation
The Complete Edition is also available.
Windows
Humble Store (unavailable)
Icon overlay.png
Icon overlay.png
Requires online activation
The Complete Edition is also available.
Windows
Rockstar Social Club is not needed to run the game using retail patches 1.0.6.0, 1.0.7.0, or 1.0.8.0.[4]
The Complete Edition includes Grand Theft Auto: Episodes from Liberty City.
The March 2020 update to the Steam version upgraded the game to the Complete Edition, adding achievements, introducing Rockstar Games Launcher DRM and removing multiplayer[5], SecuROM PA DRM and Games for Windows - LIVE DRM entirely (see Network for solutions).
CD keys can be redeemed on the Rockstar Games Launcher to activate the Complete Edition.[6]

DLC and expansion packs

The Complete Edition includes the DLCs now. All previously bought copies on Steam were freely upgraded to that version, and original retail versions can be freely upgraded to the Complete Edition by registering a Games for Windows - LIVE key on Rockstar Games Launcher.
Name Notes
The Ballad of Gay Tony
Windows
The Lost and Damned
Windows

Essential improvements

Patches

The latest Steam/Rockstar Games Launcher version may be incompatible with some modifications, so downgrading to 1.0.8.0 or earlier may be required (check desired mods' requirements).
Patches after 1.0.8.0 were released only for the game's digital versions. Although the first numbered upgrade was referred as "1.20", subsequent versions of the game adopted a "1.2.x.x" model.

DXVK

Can vastly improve the game's performance.
Install DXVK[7]
  1. Install DXVK to <path-to-game>\GTAIV.
  2. Create a text file, name it dxvk.conf, and add d3d9.maxFrameLatency = 1 to it to avoid or reduce occasional frame skipping and stuttering[8]
  3. Add d3d9.presentInterval = 1 to the file, which forces using DXVK's Vsync implementation. This may give less CPU overhead compared to the game's own Vsync implementation.
  4. Add d3d9.numBackBuffers = 3 to the file. This may further improve frametime stability while using Vsync.

Notes:

The game may wrongly detect the amount of VRAM available and only show 512 MB instead while using DXVK.
The game may not use the desired resolution and refresh rate while using DXVK. Use the respective commands to remedy this.[9]

Ultimate ASI Loader

Ultimate ASI Loader is the primary tool used by the game's modding community to allow players to load mods into the game.

Included with ZolikaPatch and FusionFix.
Installation[10]
  1. Download Ultimate-ASI-Loader.zip.
  2. Extract the file to <path-to-game>\GTAIV\.

Note:

Rename the included dinput8.dll file to xlive.dll to disable Games for Windows - LIVE.

FusionFix

Fixes various gameplay and visual issues, includes an accurate, adjustable frame rate limiter, and restores and improves broken shaders which were lost or broken as a result of porting from consoles to PC[11]
Includes Ultimate ASI Loader.
Supports both the Complete Edition and retail versions 1.0.7.0 and 1.0.8.0.
Shader fixes and improvements performed utilizing Shader Fixes.
Installation
  1. Go to Releases and download latest version.
  2. Extract the contents of the archive to <path-to-game>\GTAIV\

ZolikaPatch

Fixes various gameplay and visual issues, addresses several problems when running at high framerates, vastly improves loading times and removes certain limitations to make modding easier[12][13]
Natively supports Complete Edition saves.
Given user confirmation, downgrades the Complete Edition to retail version 1.0.8.0, moves Complete Edition saves to correct retail save game location, automatically downgrades any incompatible mods it can, while leaving all remaining mods alone.
Compatible with 1.0.4.0, 1.0.7.0, or 1.0.8.0.
Requires Ultimate ASI Loader.
Installation
  1. Download the ZIP file from bottom of the first post of the linked forum topic.
  2. Extract the files to <path-to-game>\GTAIV\.

Downgrading

Downgrading a digital (Complete Edition) copy of the game to a retail version of the game is useful for situations where a majority of desired mods and fixes will not work with the Complete Edition.

Use ZolikaPatch

Skip intro videos

Install FusionFix or ZolikaPatch[14]
Edit loadingscreens_pc.dat[15][16]
  1. Go to <path-to-game>\GTAIV\common\data\.
  2. Open loadingscreens_pc.dat with a text editor.
  3. Alter the value of duration for sections 1, 2, 3, 4, 5 and 6 to 0.

Game data

In-game general settings.
In-game general settings.

Configuration file(s) location

System Location
Windows %LOCALAPPDATA%\Rockstar Games\GTA IV\Settings\SETTINGS.CFG
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/12210/pfx/[Note 2]
Configuration files are encrypted. See Command line parameters for an alternative.

Save game data location

System Location
Windows %USERPROFILE%\Documents\Rockstar Games\GTA IV\Profiles\<user-id>\ (Complete Edition)
%LOCALAPPDATA%\Rockstar Games\GTA IV\savegames\<user-id>\ (Retail patches)
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/12210/pfx/[Note 2]
If a Complete Edition save is not detected, Rockstar Games Launcher offers to search for retail (Games For Windows - LIVE) saves and import them.
On retail patches, %LOCALAPPDATA%\Microsoft\XLive must also be backed up; the save data is bound to the Games for Windows - LIVE profile.
See GTASnP to convert Complete Edition saves to retail-compatible saves.

Save game cloud syncing

System Native Notes
OneDrive
Requires enabling backup of the Documents folder in OneDrive on all computers.
Steam Cloud
Uses Rockstar Games Launcher cloud saves for the Complete Edition.
Rockstar Games' cloud saves can be disabled while playing the game in Online Mode using the overlay's menu.

Video

In-game video settings.
In-game video settings.

Graphics feature State WSGF Notes
Widescreen resolution
Multi-monitor
Ultra-widescreen
Cutscenes and loading screens are Vert-.[17] Use FusionFix for Hor+.
4K Ultra HD
Field of view (FOV)
Modifiable using a trainer. ZMenuIV additionally allows an FOV multiplier. FusionFix allows modifying cutscene FOV.
Windowed
Run the game with -windowed parameter.
Borderless fullscreen windowed
Install FusionFix or ZolikaPatch.
Anisotropic filtering (AF)
Up to 16 samples.
Anti-aliasing (AA)
FXAA, SMAA, and SSAA 2x with FusionFix.
High-fidelity upscaling
See the glossary page for potential workarounds.
Vertical sync (Vsync)
60 FPS
120+ FPS
Frame rates above 60 cause some bugs, like buggy vehicle physics, motorcycles getting extremely slippery. Unofficial fixes and patches, such as FusionFix and ZolikaPatch, do not completely fix these issues.
High dynamic range display (HDR)
[18]
Ray tracing (RT)

Input

In-game key map settings.
In-game key map settings.
In-game keyboard/mouse settings.
In-game keyboard/mouse settings.
In-game gamepad settings.
In-game gamepad settings.

Mouse deadzone

The game has a non-toggleable mouse deadzone that makes it really hard to aim at low DPI values.[19]
Use FusionFix[20] or ZolikaPatch[21]

Notes:

Can be enabled back by changing the MouseFix value to 0 in GTAIV.EFLC.FusionFix.ini or ZolikaPatch.ini.

DirectInput controller support

Run the game with -usedirectinput parameter[22]
Enable support in in-game options[23]
  1. Open the in-game Options menu.
  2. From the list which appears, select Controls.
  3. Click Enable DirectInput under Controller Options.

Right trigger does not work when using Steam Input

Bind Soft Pull Action to Right Trigger[24]
  1. Right-click the game in the Steam library and go to manage/controller configuration.
  2. Click Right Trigger and bind Soft Pull Action to Right Trigger.

Audio

In-game audio settings.
In-game audio settings.

Audio feature State Notes
Separate volume controls
Music and SFX.
Surround sound
Up to 5.0 output.[25]
Subtitles
Closed captions
Mute on focus lost
Royalty free audio
Command line arguments responsible for the in-game audio:
  • -fullspecaudio: forces higher quality audio (default).
  • -minspecaudio: forces lower quality audio, good for lower-end CPUs (removes some extra audio details, not reducing audio quality; reduces CPU load).
DSOAL for using as alternative DirectSound wrapper (with or without HRTF) works on the Rockstar Games Launcher version and on Windows 10 builds prior to 1809.

Localizations

Language UI Audio Sub Notes
English
Czech
Fan translation, download.
French
German
Hungarian
Fan translation, download.
Italian
Japanese
Only the main game is translated, user must change game language to access DLC content.[26] See this to enforce different language without having to change Rockstar Games Launcher or Steam language.
Polish
Fan translation, download. Download this for the Complete Edition.
Brazilian Portuguese
Fan translation, download. Download this for the Complete Edition.
Russian
Official localization by «1C-Softclub» included in the Complete Edition. Download this for retail versions.
Spanish
Turkish
Fan translation, download.

Network

HappinessMP does not support any mods or improvements which require Ultimate ASI Loader, meaning FusionFix is incompatible with it.[27]

Multiplayer types

Type Native Players Notes
Local play
4 Co-op, Versus
Use Nucleus-Coop Unofficial mod - Guide.
LAN play
32 Co-op, Versus
For 1.0.7.0 and 1.0.8.0, use vanilla Games for Windows - LIVE's LAN feature, or use IV:MP. For the Complete Edition, use HappinessMP.
Online play
32 Co-op, Versus
For 1.0.7.0 and 1.0.8.0, use vanilla Games for Windows - LIVE's LIVE play feature, or use IV:MP or Grand Theft Auto Connected. For the Complete Edition, use HappinessMP.

Connection types

Type Native Notes
Matchmaking
Games for Windows - LIVE[28] and Grand Theft Auto Connected[29] both have an option for matchmaking, titled Quick Play in the in-game Multiplayer menu
Peer-to-peer
Games For Windows - LIVE is P2P, Grand Theft Auto Connected has an optional toggle for P2P.
Dedicated
Requires a third-party multiplayer client, such as IV:MP, Grand Theft Auto Connected, or HappinessMP.
Self-hosting
Some unofficial third-party multiplayer clients, such as HappinessMP, do not allow self-hosting.
Direct IP

Ports

Protocol Port(s) and/or port range(s)[30]
TCP GFWL: 3074
UDP GFWL: 3074, 88; IV:MP: 8888
This game supports Universal Plug and Play (UPnP) for automatic port configuration.
UPnP is used on the Games for Windows - LIVE version.

VR support

3D modes State Notes
Nvidia 3D Vision
Use Helix Mod: Grand Theft Auto IV for better support.
vorpX
G3D
Officially supported game, see official vorpX game list.

Issues unresolved

Timing-related issues

A framerate higher than 60 FPS can result in timing issues, including, but not limited to:
  • Menu fade in/out becomes increasingly longer at framerates above 60
  • In the mission "Out of Commission", while trying to climb onto the helicopter, no matter how often the jump key is pressed, the player character will not be able to get onto the helicopter. Reportedly fixed with patch 1.0.8.0.[31], but may still break above 60 FPS.
  • Brucie's garage door in the mission "Easy as Can Be" closes, prematurely leaving Niko trapped.[32]
  • The use of the virtual keyboard of the police car computer becomes impossible to control with the keyboard due to the sensitivity being increased too much.
  • Several activities, such as pool and air hockey, have their physics break, causing them to not play as expected.
  • The handbrake camera and regular camera movement become excessively slow.
  • The entire game runs faster than normal when above 250 FPS.[33]
  • Cutscenes zoom in above 30 FPS.[34]
  • Postprocessing effects are inconsistent at different framerates.
  • Rain effects are inconsistent on different framerates.
Use FusionFix[35][36] or ZolikaPatch[37] on retail patches

Note:

Does not completely fix timing-related issues.
Cap frame rate to 60 FPS.[38]

Note:

FusionFix has an in-game FPS toggle, configurable in the in-game Graphics section of Settings.[11]

Issues fixed

Game language does not follow the Rockstar Games Launcher/Steam settings

Apply Language Loader[39]
Requires Ultimate ASI Loader.
  1. Download and extract Language Loader to <path-to-game>\plugins\.
  2. Edit GameLanguageID in IVLanguageLoader.ini to the desired language.

No bullet spread/recoil

Not recommended to use in multiplayer[40]
Use FusionFix[41]

Note:

Requires 1.0.7.0, 1.0.8.0, or the Complete Edition.
The option is enabled by default, but can be toggled off by changing RecoilFix to 0 in GTAIV.EFLC.FusionFix.ini.
Apply Bullet Spread/Recoil Fix script[42]

Notes:

Requires Ultimate ASI Loader.
Requires 1.0.8.0 or earlier.

Unable to play in offline mode with the game's Steam version

This solution will enable offline mode with local game saves.
Run the game from the Rockstar Games Launcher[43]
  1. Ensure both Rockstar Games Launcher and Steam are already set for offline mode: Rockstar Games Launcher's how-to. Steam's how-to.
  2. Disconnect the system from Ethernet and Wi-Fi.
  3. Run the Rockstar Games Launcher using Windows' Start Menu, that uses a shortcut to LauncherPatcher.exe (usually located in %PROGRAMFILES%\Rockstar Games\Launcher).
  4. Run the game from this launcher by clicking "Play on Steam".

VRAM amount is wrongly detected

The game can wrongly detect the amount of VRAM available, showing only 512 MB instead.
Claimed to be fixed on 1.0.8.0,[44] but may still happen on certain system configurations[45] such as laptops with dual GPU configurations[46], when using wrappers like DXVK or when downgrading to a pre-1.0.8.0 game version.
Use -availablevidmem XXXX.0 command line argument and replace XXXX by the wanted amount of VRAM in MB[47]

Notes

Using any value above 3072.0 on latest Complete Edition version is not recommended as it seems to cause texture popping all throughout the map.[48][dubious – discuss]
Use ExtendVidMem[49]
Works on the Complete Edition.
  1. Download the dinput8.dll file in this page.
  2. Extract it to <path-to-game>\GTA IV\.

Notes

Rename the ASI loader's variant of dinput8.dll to dsound.dll to use this fix along with Ultimate ASI Loader.

DRM-related errors

Absent from the Complete Edition, where GFWL and SecuROM were removed from the game.
Install the latest Games for Windows - LIVE in case of old versions on Windows 8 or later.

Fatal error: WTV270

See In-game interface does not open

SecuLauncher: failed to start application. [2000] error

Install Visual C++ Redistributable 2005 SP1 and .NET 3.5[50]
Remove any administrator compatibility fix from <path-to-game>\GTAIV\GTAIV.exe

All civilian cars are taxis (taxi bug)

Example of a game affected by the "taxi bug".
Example of a game affected by the "taxi bug".

During gameplay with mods, civilian cars can be entirely replaced with taxis.[51][52][53]

Use RIL.Budgeted[54]
  1. Download the mod.
  2. Extract to <path-to-game>\GTAIV.
  3. Open RIL.Budgeted.ini with a text editor.
  4. Find the following line in the opened file: VehicleBudget=40000000
  5. Change 40000000 to 120000000
  6. Save and close the file.

Note:

Requires Ultimate ASI Loader.
FusionFix already includes this mod, edit the value in GTAIV.EFLC.FusionFix.ini instead.[55]
If using IV Tweaker on retail patches, edit the value in IVTweaker.ini instead.[56]
The value given for VehicleBudget should be the size of vehicles.img in bytes (i.e. the 120,000,000 bytes shown in the above instructions is 114.44 MB) plus the combined size in bytes of all vehicle model and texture mods in use. Increase this value if the bug re-occurs. Decrease it if cars stop having engine sounds.
Use Simple Traffic Loader[57]

Note:

Requires Ultimate ASI Loader and any retail version.
Rather than being a direct solution, it's a workaround that completely changes how traffic is handled.
Allows to limit selected cars to specific in-game regions.
Attempting to limit modded cars to specific in-game regions can result in the game world failing to render.[58]

Film grain noise texture size depends on water quality setting

Example of film grain effect issue, using Low and Very High Water Quality settings, respectively.
Example of film grain effect issue, using Low and Very High Water Quality settings, respectively.

In "The Lost and the Damned" (TLAD) expansion pack, the size of the noise texture used for the film grain effect is tied to the Water Quality setting and game resolution. This results in the film grain effect being virtually-invisible at the highest settings.

Use FusionFix[59]

Other information

API

Technical specs Supported Notes
Direct3D 9.0c
Shader Model support 3
Executable 32-bit 64-bit Notes
Windows

Middleware

Middleware Notes
Physics Bullet, Euphoria
Audio DirectSound
Interface Flash
Cutscenes Bink Video 1.9r
Used for in-game television.

Launch options

It is possible to alter the way the game runs by creating a file called commandline.txt and saving it to <path-to-game>, or by using parameters as command line arguments.
Parameter Description
-help Lists the available commands.
-adapter Uses the specified screen adapter.
-autoconfig Automatically adjusts the graphics settings depending on computer specifications.
-availablevidmem Sets the amount of available physical video memory.
-benchmark Launches the game in Benchmark mode and then quits it.
-detailquality Sets the game's detail distance (0-99).
-disableimposters Turns off imposter rendering for vehicles.
-forcehighqualitymirrors Enables 64-bit mirrors.[dubious – discuss]
-forcer2vb Forces rendering to Vertex Buffer.
-frameLimit Limits the FPS to the refresh rate of the monitor being used.
-framelockinwindow Forces framelock to work even in a window.
-fullscreen Forces fullscreen mode.
-fullspecaudio Forces high-end CPU audio footprint.
-gpucount Allows to manually set the GPU count if query fails.
-height Sets the vertical resolution.
-managed Uses D3D runtime managed resources.
-memrestrict Restricts the amount of available memory the game can use.
-minspecaudio Forces low-end CPU audio footprint.
-no_3GB Disables 3GB memory support on 32-bit OSes which have been set to allow games and applications to use that much memory.
-noBlockOnLostFocus Prevents the game from blocking window updates during focus loss.
-noprecache Disables precaching of resources.
-nomemrestrict Disables memory restrictions.
-nominimize Disables the ability to restore the game from minimize and altering resolutions (reduces system memory footprint).
-norestrictions Disables restrictions on graphics settings.
-noswapdelay Disables sleep delay before Present (disables the hard present stalls fix).
-notimefix Disables Time Fix.
-novblank Disables vertical blanking for V-Sync.
-percentvidmem Percentage of video memory to be made available for the game.
-refreshrate Sets the refresh rate (values set must be supported by the monitor used).
-reserve Sets the amount of memory to be used by other programs.
-reservedApp Sets the amount of memory to be left available within application space.
-renderquality Adjusts anisotropic filtering (0-4).
-safemode Sets the game's graphics to the lowest setting possible.
-shadowdensity Adjusts night shadows (0-16).
-shadowquality Sets the shadow quality (0-4).
-stereo Enables stereo audio support.
-texturequality Sets the game's texture quality (0-2).
-unmanaged Uses application managed resources.
-usedirectinput Allows DirectInput support alongside XInput support.
-viewdistance Sets the game's view distance (0-99).
-windowed Forces windowed mode.
-width Sets the horizontal resolution.

Custom music

The game allows users to play their own music on a custom radio station: Independence FM.[60]

Instructions[60]
  1. Place any audio files/folders or create shortcuts into %USERPROFILE%\Documents\Rockstar Games\GTA IV\User Music\ folder.
  2. Go into the in-game settings.
  3. From the in-game settings, go to Audio.
  4. Click on either Quick Scan or Complete Scan to perform a one-time scan of User Music or enable Auto Scan to have the game automatically scan User Music).
  5. Tune into the Independence FM radio station in-game.

Notes:

The minimum amount of tracks in the folder for the station to work is 3.[61]
iTunes must be installed for M4A support.
Supported formats are M4A, MP3 and WMA. Other formats and extensions are not detected.
Use shortcuts to audio files/folders to improve performance and save disk space.
Supports high-resolution audio files. Up to 96 kHz/24 bit.
Supports Surround audio files. Up to 6 channels.
Monaural audio files are not supported.

Restore removed music

Over 50 radio station tracks were removed from the game in April 2018 due to expired licenses.[62]
Restores the original PC pause menu music for The Ballad of Gay Tony.
Install music 'downgrader'[63]
  1. Download the music 'downgrader'.
  2. Extract the downloaded zip file.
  3. Open the folder which the zip file was extracted into, and run IVCERadioRestorer.exe.
  4. Follow the installer's instructions.
  5. Launch via Steam or Rockstar Games Launcher.

GTASnP

Gives an incomplete checklist of objectives to reach 100% based on your save.
Can be used to convert Complete Edition saves to retail saves.
Converting Complete Edition saves to retail saves[64]
  1. Go to GTASnP
  2. Upload your save from %USERPROFILE%\Documents\Rockstar Games\GTA IV\Profiles\<user-id>\
  3. Expand the Modifications section
  4. At Downgrade Version, select 1.0.8.0 IV / 1.1.3.0 EFLC and older
  5. Select your download slot below to download the save
  6. After downloading, place your save at %LOCALAPPDATA%\Rockstar Games\GTA IV\savegames\<user-id>\

OpenIV

Used to install mods that are packaged in .oiv format.
Required for mods which expect the user to package their contents into a format usable by the game.

Trainers

While trainers are usually used for fun and extra features, ZMenuIV is highly recommended for multiplayer play as it permits the creation of custom game modes similar to what can be done in GTA:Online.

ZMenuIV

Multiplayer-focused - highly recommended for multiplayer.
Includes a variety of useful and fun options, such as noclip or Chaos mod for streamers.
Requires ASI Loader.
Not compatible with Complete Edition.

Liberty's Legacy Trainer

Compatible with Complete Edition, 1.0.7.0 and 1.0.8.0
aru's Script Hook (additionally, Compatibility Patch for CE if you're using Complete Edition) and ASI Loader are required.

Modifications

Important things to consider

Due to the nature of modding the game, here are some important things to consider before engaging in general (e.g. non-essential) mod installation:

It is strongly recommended to backup any files these mods may replace.
Mods should not be used in multiplayer unless using a multiplayer-focused trainer such as ZMenuIV.
OpenIV may be required for some mods. Such mods do not depend on a specific version unless stated otherwise.
Installing mods that replace files can follow a different procedure which don't require replacing files if you have Ultimate ASI Loader. For example, <path-to-game>\GTAIV\update can include all non-img files in their respective folder structure, while all the .img files can be separately batched into one (or three if they affect EFLC too) .img file with OpenIV in a separate folder.[65]

Run EFLC as DLCs

For older patches - 1.0.6.0 to 1.0.8.0. Unneeded on the Complete Edition.
Unneeded after downgrading.
Merges the radio stations and songs from EFLC into the base game.
Removes RamJam FM, Self-Actualization FM and Vice City FM radio stations.

Improved Animations Pack

Requires OpenIV.
Fixes many issues with gun animations, like the firing delay on the assault rifles.
Ammo depletes much faster on weapons, such as Micro SMG.

Console Visuals

Restores additional console-only visual effects and content.
FusionFix is required.

ColAccel

Drastically decreases loading times[66]
Requires Ultimate ASI Loader.
Compatible with Complete Edition and retail patches (the releases are different - 1.5 is for CE and 1.4 is for retail).
Can be used alongside FastLoading option from ZolikaPatch for increased effect.[67]
Produces memory issues and increased load times on some PC's instead.
May cause bugs and/or other inconsistencies, mostly related to scripted models or objects that alter their appearance via story progression.[68]

System requirements

Windows
Minimum Recommended
Operating system (OS) XP SP3
Processor (CPU) Intel Core 2 Duo 1.8 GHz
AMD Athlon X2 64 2.4 GHz
System memory (RAM) 1.5 GB
Hard disk drive (HDD) 22 GB
Video card (GPU) ATI Radeon X1900
Nvidia GeForce 7900
256 MB of VRAM
DirectX 9.0c compatible


Notes

  1. Games for Windows - LIVE DRM features: Legacy activation, supports local profiles.
  2. 2.0 2.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/12210/ in addition to or instead of this directory. The app ID (12210) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.

References

  1. YouTube video comparison (2:06) - last accessed on 2023-01-16
  2. https://www.youtube.com/watch?v=HZ48QRa4U0U&t=156s
  3. GTA IV PC - Games For Windows - last accessed on 2022-09-09
  4. Grand Theft Auto IV Patch Changelog - last accessed on 2022-09-20
    "Separate RGSC application no longer required to launch game."
  5. Grand Theft Auto IV and Grand Theft Auto: Episodes from Liberty City updates to remove Games for Windows Live - Rockstar Games Customer Support - last accessed on 2022-09-20
    "As a result of this update the following services will no longer be available in Grand Theft Auto IV: Complete Edition – Games for Windows Live, Multiplayer mode, Leaderboards."
  6. Grand Theft Auto IV and Grand Theft Auto: Episodes from Liberty City updates to remove Games for Windows Live - Rockstar Games Customer Support - last accessed on 2022-09-20
    "Players with existing CD keys will be able to redeem them via the Rockstar Games Launcher."
  7. DXVK works magic on GTA IV - Reddit - last accessed on 2022-10-29
  8. How to fix choppiness and stutters in GTA IV - last accessed on 2022-10-29
  9. D3D9 - Cannot select proper resolutions using dxvk with GTA IV - Issue #1831 - doitsujin/dxvk - Github - last accessed on 2023-07-08
  10. Ultimate-ASI-Loader/readme.md at master · ThirteenAG/Ultimate-ASI-Loader · GitHub - last accessed on 9 June 2023
  11. 11.0 11.1 FusionFix's changelogs - last accessed on July 2023
  12. ZolikaPatch's feature list - last accessed on 2023-07-08
  13. Load time comparison between ZolikaPatch (FastLoading), ColAccel and vanilla - last accessed on 2023-07-08
  14. Verified by User:Tomasak on 2022-11-29
    Both have option to skip intro
  15. Remove/Skip annoying intro sequence! - /r/GTA - last accessed on May 2023
  16. Verified by User:Bowi on 2022-08-19
  17. GTA IV (2016 Patch) | 21:9 Review - YouTube
  18. Verified by User:Blackbird on 2021-04-17
  19. Fix this mouse issue Rockstar! - Help & Support - GTAForums - last accessed on 2023-07-08
  20. GTAIV.EFLC.FusionFix/readme.md at master - last accessed on 2023-07-08
    "Added an option to fix mouse deadzones"
  21. Zoika1351's Zone - ZolikaPatch IV - last accessed on 2023-07-08
    "Fixed mouse movements having a deadzone"
  22. Currently Supported Controllers for GTA IV PC - Rockstar Support - last accessed on May 2023
  23. Verified by User:Sandemc on 2023-07-07
  24. gtaforums.com - last accessed on May 2023
  25. PC Gaming Surround Sound Round-up
  26. Japanese support - last accessed on 2022-12-01
  27. Verified by User:Sandemc on 2023-11-21
  28. Verified by User:Sandemc on 2023-07-08
    Works, but unclear what lobbies are being prioritized; from what people are saying, it also has issues with modes like Free Mode
  29. Verified by User:Sandemc on 2023-07-08
    You can't matchmake between servers, however.
  30. IV:MP T4 Manual - IV-MP Community Forum - last accessed on May 2023
  31. Grand Theft Auto IV Patch 8 Title Update Notes (PC Only) - Rockstar Games Customer Support - last accessed on 3 July 2023
  32. Verified by User:Sandemc on 2023-07-07
  33. Speedup at absurd FPS (300+) - last accessed on 2023-07-08
  34. GitHub - GTAIV-Issues-List - Issue #1 - last accessed on 2023-07-03
  35. GitHub - ThirteenAG/GTAIV.EFLC.FusionFix - last accessed on 2023-11-03
    ""Workaround for the garage door bug on high framerates, the garage door only closes now when Niko is actually outside of the garage", "Fixed the heli climb QTE being impossible on really high framerates", "Workaround for a bug where Jacob crashes the Annihilator on high framerates (Deal Ending)", "Fixed motion blur framerate scaling", "Fixed rain framerate scaling""
  36. GitHub - Release GTAIV.EFLC.FusionFix v2.0 - last accessed on 2023-11-03
    ""Fixed cutscene jitter and excessive zooming at framerate above 30", "Fixed bike sliding at framerate above 60""
  37. Zolika1351's Zone - ZolikaPatch IV - last accessed on 2023-07-08
    ""Fixed bikes sliding more easily above ~80FPS", "Fixed cutscenes having jittery camera motion at high FPS", "Fixed cutscenes zooming in at high FPS", "Fixed the game speeding up above 300FPS", "Fixed the climbing bug in Out of Commission at high FPS""
  38. GTA IV: Bugs and Glitches compilation
  39. Verified by User:Tomasak on 2022-12-01
    Checked if mod works on latest CE version
  40. Verified by User:Sandemc on 2023-07-07
    The reason for this is because this is not the default behaviour; by adding recoil to yourself you're putting yourself at disadvantage on gamemodes, such as Deathmatch.
  41. GitHub - GTAIV.EFLC.FusionFix - last accessed on 2023-07-04
    "Fixed recoil behavior that was different when playing with keyboard/mouse and gamepad"
  42. Archived Requests, need ideas? - GTAForums - last accessed on May 2023
  43. Verified by User:Bowi on 2023-01-21
    Tested myself with both Steam's and Rockstar Launcher's clouds disabled.
  44. Grand Theft Auto IV Patch 8 Title Update Notes (PC only) - last accessed on 2022-08-23
  45. GTA IV – How to fix Resource Usage (VRAM) stuck on 512 MB - last accessed on 9 June 2023
  46. Verified by User:Tomasak on 2022-11-29
    Checked on laptop with GTX 1060 and Intel HD 630 GPU combination
  47. Verified by User:Tomasak on 2022-11-29
    Tested on both platforms
  48. Verified by User:ZT111 on 2023-03-27
  49. Newest patch - VRAM 512MB limit !! - last accessed on May 2023
  50. SecuROM™ Support Website - Grand Theft Auto IV
  51. r/GTAIV - Is the Taxi Bug Permanent? - last accessed on 2023-07-05
  52. Steam Community Discussion - ♥♥♥♥♥♥ TAXI BUG - last accessed on 2023-07-05
  53. GTAForums - Can't Stop The Traffic (Taxi) Bug - last accessed on 2023-07-05
  54. Verified by User:Sandemc on 2023-07-08
  55. GTAIV.EFLC.FusionFix - Issue #85, reply 1 - last accessed on 2023-07-05
  56. Verified by User:Sandemc on 2023-07-08
  57. Verified by User:Sandemc on 2023-07-08
  58. GTAinside.com - Simple Traffic Loader - last accessed on 2023-07-05
    "Custom cars are also supported!
    Warning: Custom cars might make the world to disappear.
    Open the "SimpleTrafficLoader.ini" in the main directory of GTA IV and just insert the name of your vehicle in any of the sections! (Without extension)
    "
  59. GitHub - Parallellines0451/GTAIV.EFLC.FusionShaders - last accessed on 2023-11-03
    "Fixed TLAD noise being affected by water quality"
  60. 60.0 60.1 Your Own Music - GTA 4 / Grand Theft Auto IV on Gta.cz - last accessed on May 2023
  61. Verified by User:Sandemc on 2023-07-07
    The online sources say 5, but from personal observations the number is 3; placing 1 or 2 tracks doesn't work.
  62. Grand Theft Auto IV music cut patch - Rock Paper Shotgun - last accessed on May 2023
  63. IV/EFLC Radio "downgrader" - GTA Forums - last accessed on May 2023
  64. Verified by User:Sandemc on 2023-07-07
  65. Verified by User:Sandemc on 2023-07-08
    Confirmed from personal observation and tests, but this lacks official documentation anywhere.
  66. ColAccel - reduce loading time by 50%* - Scripts & Plugins - GTAForums
  67. Load time comparison between ZolikaPatch (FastLoading), ColAccel and vanilla - last accessed on 2023-07-08
  68. Post by Marsi4eg - last accessed on May 2023