Skip to main content



  • Right-click the empty space in the left pane of MO2 and select Create separator.
  • Name the separator Optimizations.
What will these optimizations do?

These mods will not have a noticable visual impact, but will significant improve your performance and experience with AI throughout the game.

Improved AI (Navmesh Overhaul Mod)

Fixes and improves vanilla game pathfinding errors and will provide a better and more challenging experience with the AI. ONLY affects the Mojave worldspace. Navmeshes in the Capital Wasteland are already high quality.


  • Main File - Navmesh Overhaul

A compatibility patch is NO LONGER required for this mod.

TTW Ultimate Invisible Wall Remover

A comprehensive invisible wall remover for Tale of Two Wastelands.


  • Main File - TTW Ultimate Invisible Wall Remover (ESM Version)

MAY break scripted events if quest related areas are entered from the incorrect route (eg climbing over a previously unpassable hill rather than navigating through the sewers to get to the GNR building), but is otherwise a MASSIVE quality of life improvement.

Collision Meshes - DC

Improves collision meshes in the Capital Wasteland.


  • Main File - Collision Meshes FO3

Collision Meshes - NV

Improves collision meshes in the Mojave Wasteland.


  • Main File - Collision Meshes FNV
  • Main File - Update Collision Meshes FNV 1.6.3 to 1.6.4

New Vegas Mesh Improvement Mod

Optimizations and fixes for a large selection of meshes in the base game and DLC.


  • Main File - New Vegas Mesh Improvement Mod


Fixes dozens of game models across the base game and DLCs.

Items Transformed - Enhanced Meshes (ITEM)

ITEM is a general bug fixing mod for dozens of item models across the base game and DLCs.

Mainframes Litter Flickering Fix

Adjusts a few shader flags to litter meshes to stop the litter from flickering.


Main File - Mainframes Litter Flickering Fix v5

Vent Lighting Fix

Adds a shader flag to vent meshes that fixes flickering and lighting issues.

PipBoyOn Node Fixes

Fixes multiple boy:on nodes in the vanilla game armor meshes and TTW to remove the annoying -boy flicker.


  • Main File - PipBoyOn Node Fixes TTW

Aqua Performa - Strip Performance Fix

Drastically improves performance on The Strip by getting rid of unseen water LOD.

Fog-based Object Culling

Dynamically adjusts draw distance in accordance with the fog to improve performance with little to no visual difference.

ExRB - Extended Roombounds

Adds and changes roombounds for many interior cells throughout the Mojave Wasteland to improve performance.

  • Main File - ExRB
    • Step 1:
      • Full
      • Full (YUP)
      • Full (TTW)
      • Compatibility
    • Step 2:
      • A World of Pain - DO NOT install this patch. It is incompatible with the overhauls used in the guide

Fallout 3 TTW Interior Optimization Project

Optimizes more than 200 interior cells with roombounds and occlusion planes to improve performance in the Capital Wasteland.


  • Main File - Fallout 3 Interior Optimization Project