Fallout 4 Script Extender (F4SE)

⭐ ⭐⭐⭐⭐ (97,421 endorsements) 📥 8.0M downloads 📌 v0.7.8 📅 11/18/2019
🟡 Updated this year

By F4SE Team · Utilities

⬇ Download Mod Source: Nexus Mods 📅 Updated: 5/27/2026 📅 Created: 11/18/2019
⚠️ Potentially Incompatible — Recent Game Update

This mod may not work until the author updates it. Check for an update, or see the rollback guide.

⚠️ Install Order · 2 steps
1🛠️ F4SE — Fallout 4 Script Extender Download ↗
2🔧 UFO4P — Unofficial Fallout 4 Patch Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 1.2% endorsement rate — high engagement, a strong quality signal
  • 🏆 #2 of 49 Utilities mods in this game by downloads

📋 About This Mod

All native code plugins (.dlls) need to be updated by their creators for 1. 10. 980+ and 1. 11+.

Old native code plugins not loading is not a problem with F4SE.

The Fallout 4 Script Extender, or F4SE for short, is a modder's resource that expands the scripting capabilities of Fallout 4. It does so without modifying the executable files on disk, so there are no permanent side effects.

Once installed, no additional steps are needed to launch Fallout 4 with F4SE's added functionality. You can start the game using F4SE from f4se_loader.exe

Installation (Manual)

  • []Download the F4SE from the Files tab.

    []Extract all files inside the top-level folder in the ZIP to your game folder (where Fallout4.exe is located).

    []Run the game using f4se_loader.exe.

    []To confirm it is working, open the console with the tilde (`) key and type getf4seversion. This will display the version number of the current F4SE build.

    Install with Vortex

    • []Click the "Vortex" button in the top-right of this page.

      []Once installed and enabled, ensure you have deployed it by clicking "Deploy Mods" on the Mods toolbar.

    • Use the shortcut on the dashboard to start the game with F4SE.

      Compatibility:

      F4SE supports the latest version of Fallout available on Steam. MS Store/Gamepass/Epic/whatever else isn't supported.

🤖 AI-enhanced — based on mod data

F4SE is a critical modder's resource that expands Fallout 4's scripting capabilities without modifying game files. It's essential for mod authors and players who want to use advanced mods. With 97,421 endorsements and 8 million downloads, it's a cornerstone of the modding community.

✨ Key Features

Expands the scripting capabilities of Fallout 4.
Does not modify executable files on disk, ensuring no permanent side effects.
Serves as a modder's resource for creating advanced mods.

📊 Pros & Cons

✅ Pros

  • Massive community trust (97,421 endorsements) — this is the backbone of Fallout 4 modding.
  • 8 million downloads prove it's a must-have for anyone serious about modding.
  • Safe design: no permanent changes to your game files.

⚠️ Cons

  • Not a standalone mod — you'll need to install it manually and keep it updated for game patches.
  • Requires matching game version; any Fallout 4 update can break it until F4SE updates.
  • No in-game features on its own — you need other mods to see any benefit.
🎯 Is This For You?
For mod authors and players who want to use script-extender-dependent mods like Sim Settlements or FallUI. If you only use simple texture or weapon mods, you might not need it, but it's a prerequisite for many popular mods.
📦 Install:Medium· 5-10 minutes

💡 Beginner Tips

  • Always download the version that matches your game's current patch — check the F4SE website for the latest release.
  • Place the F4SE files directly into your Fallout 4 root folder, not the Data folder.
  • Launch the game via f4se_loader.exe to ensure F4SE is active.

📊 Mod Details

Game
Fallout 4 Mods
Author
F4SE Team
Version
0.7.8
Downloads
7,954,080
Endorsements
97,421
Category
Utilities
Created
11/18/2019
Updated
5/27/2026

🧩 Commonly Used Together

Users add these mods to the same collections — a real compatibility signal, not an AI guess.

🔧 How to Install Fallout 4 Mods

Download from Nexus.

📖 Full step-by-step install guide for Fallout 4 →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Fallout 4 commands, item IDs, and more.

Keep browsing — more Fallout 4 mods await

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