Root Mods

The following mods are special because they need to be installed directly into the game's Root folder, not through Mod Organizer 2.
Use the Manual Download and follow the instructions provided for each mod.

Failing to install these mods correctly will result in issues.

xNVSE (Script Extender)

An updated version of the original NVSE, which extends the scripting capabilities of the game.

Installation instructions

• Main Files - New Vegas Script Extender (xNVSE)
1. From the downloaded archive, move everything to the game's Root folder.

If you do not know what the Root folder is, read the Key Terminology.

Despite its name, nvse_steam_loader.dll is still needed with the non-Steam versions of the game.

2. After proper install, your Root folder should look like this:
   
   

FNV BSA Decompressor

Decompresses the vanilla BSA files to reduce loading times and stuttering. Can also fix certain sound effects not playing.

Installation instructions

• Main Files - FNV BSA Decompressor
  1. Extract the archive into the Downloads folder.
  2. From the extracted archive, run FNV BSA Decompressor.exe.
  3. The Fallout: New Vegas and Decompressed Archives paths should be filled by default (Root folder and Data folder respectively). If they aren't, close the program and re-run your game launcher to generate the required registry key.

     The EGS release of the game does not create any keys! You need to select the game folder manually!

  4. Click Decompress, wait for the process the finish, then exit the program once finished.
  5. You can now delete files created in step 1.

Ultimate Edition ESM Fixes

Optimizes and fixes thousands of records across the base game and DLC plugins to increase performance and stability.

Installation instructions

• Main Files - Ultimate Edition ESM Fixes
  1. Extract the archive into the Downloads folder.
  2. Click the button next to the profiles bar in MO2 and select Open Mods folder.
  3. Create an empty folder called Fixed ESMs inside of the Mods folder.
  4. From the extracted archive, run Installer.exe.
  5. The Fallout: New Vegas path should be filled by default (Root folder). If it isn't, close the program and re-run your game launcher to generate the required registry key.

     The EGS release of the game does not create any keys! You need to select the game folder manually!

  6. Click Browse next to the ESM Fixes path field, then choose the Fixed ESMs folder you just created.
  7. Click Install, wait for the process the finish, then exit the program once finished.
  8. In Mod Organizer 2, press F5 to refresh the left pane and enable the Fixed ESMs mod by ticking its checkbox.
  9. You can now delete files created in the step 1.

Game Patchers

Each version of the game requires a different patcher to work with xNVSE.
These patchers allow the game to use up to 4GB of RAM and automatically load xNVSE.

Select one of the following patchers based on your game version.

New Vegas Heap Replacer

Replaces the game's heap management system with a much faster version, which can lead to large performance gains.

Installation instructions

• Main Files - NVHR
  • From the downloaded archive, move everything to the game's Root folder.

Managed

From now on, select Mod Manager Download to download mods - this will make the file appear in MO2's Downloads tab, ready to be installed according to the instructions earlier in the guide.

Creating a Separator in MO2

1. Right-click the empty space in the left pane of MO2 and select Create separator.
2. Name the separator Utilities.

JIP LN NVSE Plugin

NVSE extension with new functions and many engine bug fixes.

Installation instructions

• Main Files - JIP LN NVSE Plugin
• Main Files - JIP LN Settings INI

JohnnyGuitar NVSE

Another NVSE extension similar to JIP LN.

Installation instructions

• Main Files - JohnnyGuitar NVSE

• JohnnyGuitar NVSE - INI Presets

  • Main Files - JohnnyGuitar NVSE - All Tweaks Preset

ShowOff NVSE

NVSE plugin adding new functions and engine-level tweaks & bugfixes.

Installation instructions

• Main Files - ShowOff NVSE
• Optional Files - ShowOff INI

New Vegas Tick Fix

Fixes micro-stuttering, performance and allows playing at higher framerates (up to a safe maximum of ~120).

Installation instructions

• Main Files - NVTF

• NVTF - INI Presets

  • Main Files - NVTF - Viva Default Preset

kNVSE Animation Plugin

Resource for expanding and improving the game's limited animation system.

Installation instructions

• Main Files - kNVSE

User Interface Organizer

Automatically ensures that multiple HUD extensions work together, as well as fixing many bugs and improving performance.

Installation instructions

• Main Files - UIO - User Interface Organizer

Mod Limit Fix

Raises the game's file handles limit and improves performance/loading times, even if you are far below it.

Installation instructions

• Main Files - MLF

Crash Logger

A DLL that logs raw crash data.

Installation instructions

• Main Files - Crash Logger

Improved Console (NVSE)

Enhances the console's abilities to be able to execute and print results from all available script commands. Full scripting support inside console, including creating variables and evaluating NVSE expressions (arrays, strings) for easy mod development and prototyping. Mouse wheel scrolling included too.

Installation instructions

• Main Files - Improved Console

Console Paste Support

Adds Ctrl+V as a hotkey to paste into the in-game console, along with a few other helpful shortcuts.

Installation instructions

• Main Files - Console Paste

Basic Console Autocomplete

Adds autocomplete and reverse searching to the game console.

Installation instructions

• Main Files - Basic Console Autocomplete

KEYWORDS

Implements an ESPless framework to create, and automatically load keywords in a simple user-friendly way, via use of ini config files.

Installation instructions

• Main Files - KEYWORDS

Shader Loader - NVSE

Allows loading shaders from loose files.

Installation instructions

• Main Files - Shader Loader - NVSE

ISControl Enabler and Ironsights adjuster

Dynamically adds ISControl node system animation support and easy per-weapon sights adjustment.

Installation instructions

• Main Files - ISControl

Custom INI

In this step we will take advantage of JIP LN NVSE's FalloutCustom.ini feature to improve performance and stability without affecting the main INIs.

1. Click the button at the top of MO2 and select INI Editor.
2. Select the FalloutCustom.ini tab, which should be blank. In case it's not, clear the file.

If you don't see the FalloutCustom.ini tab, then you have not enabled profile-specific Game INI Files in Profile settings during MO2's configuration.

3. Paste in the following:
; Value types (prefixes): ; i = integer (whole number) ; f = float (decimal number) ; s = string (text) ; b = boolean (0 = Off, 1 = On) [Audio] ; Enables additional worker thread for minor performance improvement bMultiThreadAudio=1 ; Disables debug logging to save memory and CPU time bUseAudioDebugInformation=0 ; Increase audio file cache size to reduce loading stutter iAudioCacheSize=16384 iMaxSizeForCachedSound=2048 [BackgroundLoad] ; Forces cell unload on fast travel to lessen memory usage bSelectivePurgeUnusedOnFastTravel=1 ; Reduces stutter when loading multiple NPCs bBackgroundLoadLipFiles=1 [Controls] ; Disables mouse acceleration in menus ; Game does not have mouse acceleration for the camera fForegroundMouseAccelBase=0 fForegroundMouseAccelTop=0 fForegroundMouseBase=0 fForegroundMouseMult=0 [Display] ; Enables Fullscreen mode for the best performance in D3D9 ; Refer to the Performance Guide for more info bFull Screen=1 ; Use this for V-Sync control (the Launcher setting doesn't work) ; 0 = Off, 1 = On, Higher values toggle fractional V-Sync (not recommended, very laggy and disables Variable Refresh Rate) iPresentInterval=1 ; Forces highest texture quality so textures won't break if you had it set to anything lower iTexMipMapSkip=0 ; Disables actor shadows due to their low visual impact and high performance cost bDrawShadows=0 iActorShadowCountInt=0 iActorShadowCountExt=0 ; Camera FOV fDefaultWorldFOV=75.0000 ; Viewmodel FOV fDefault1stPersonFOV=55.0000 ; Pip-Boy and terminal FOV fPipboy1stPersonFOV=47.0 [General] ; Forces faster cell unload to lessen memory usage bPreemptivelyUnloadCells=1 ; Spreads AI and game logic updates across 2 threads for better performance ; Values above 3 don't change anything, and the setting has nothing to do with the number of CPU cores iNumHWThreads=3 [Grass] ; Increases grass draw distance fGrassStartFadeDistance=11200 ; Ensures that 3.0 Vertex Shader is used. ; Allows drawing more grass with better performance b30GrassVS=1 [Water] ; Disables full scene reflections for a massive performance boost ; Water will use reflect LOD instead of drawing the entire world twice bForceHighDetailReflections=0 [PipBoy] ; Fixes flicker when opening Pip-Boy when its light is on fLightEffectFadeDuration=400

Testing Utilities

1. Restart your PC (otherwise some plugins might fail to load).
2. Install the ML Utilities Checker with Mod Organizer 2, just like the previous mods.
3. Launch the game using the New Vegas option in MO2 (not NVSE).

4. If you see a black console window appear, it means NVHR is working.
5. Once the game has reached the main menu, wait a few seconds and you will see a message box from the Utilities Checker.

If any check fails and the comment doesn't help you find a solution, open a support thread in the ModdingLinked Discord server.

6. Close the game and disable the ML Utilities Checker.

Performance Guide

In-depth guide on how to fix the game's lackluster performance, display issues and alt-tabbing. Covers topics such as DXVK, framerate limiting, display modes, lag and HDR.