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Mod Compatibility Guide

Learn which mods require F4SE, how to install them, and how to keep everything operating well in your system.

Mods That Require or Recommend F4SE (Fallout 4 Script Extender)

Fallout 4 Script Extender (F4SE) is a key requirement for many popular and advanced mods. This guide lists popular mods that rely on or benefit from F4SE. If you’re creating a modded setup, make sure it’s compatible with F4SE so everything works properly.

Why Is F4SE Important for Mod Compatibility?

Fallout 4 Script Extender expands Fallout 4’s scripting capabilities, allowing mod developers to create custom user interfaces, gameplay systems, hotkey managers, and other features that are not feasible with the basic game engine.

Without F4SE, many mods will fail to launch, throw errors, or behave unpredictably.

Popular Mods That Require Fallout 4 Script Extender (F4SE)

The following mods explicitly require F4SE to work:

LooksMenu
  • Expands the in-game character creation system by adding extra customisation possibilities.
  • Required for many body mods and overlays.
DEF_UI
  • Allows complete control over the HUD and Pip-Boy interface.
  • Requires F4SE to function with DEF_INV and DEF_HUD plugins.
MCM (Mod Configuration Menu)
  • Adds a universal settings menu for other mods.
  • F4SE allows mod developers to create interactive in-game options.
Place Everywhere
  • Enables advanced item placement in workshop mode.
  • Uses F4SE for hotkeys and precision placement.
Achievements Mods Enabler
  • Allows mods to be used without removing accomplishments.
  • Relies on F4SE for modifying runtime behavior.
Buffout 4
  • Performance and crash logging mod.
  • F4SE supports extensive crash tracking and memory patching.

Mods That Recommend F4SE for Full Functionality

These mods may work without F4SE but have limited features without it:

FallUI HUD / FallUI Inventory

Optional F4SE integration improves interactivity.

Equipment and Crafting Overhaul (ECO)

UI and scripting features work better with F4SE.

HUDFramework

Some features require script extender support

F4SE Compatibility

Mod Managers and F4SE Compatibility

F4SE works with the following mod managers:

  • Vortex – Set the launcher to f4se_loader.exe
  • Mod Organizer 2 (MO2) – Add F4SE as a new executable
  • Nexus Mod Manager (NMM) – Use manual installation, and set the launcher path.
Download and Setup Guide

Troubleshooting Mod Compatibility

  • Make sure you're using the appropriate version of F4SE for your Fallout 4 runtime.
  • If you're running MO2, load F4SE before any other mods.
  • Check the mod descriptions on NexusMods for specific prerequisites.
Frequently Asked Questions

More Resources

Want to find mods that work with F4SE? Explore:

  • NexusMods - Fallout 4
  • Mod author pages and F4SE tags

Fallout 4 Script Extender (F4SE) enables advanced modding features in Fallout 4. Get reliable downloads, installation tutorials, and update assistance all in one spot.

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