Base Object Swapper
🟡 Updated this year⚠️ Install Order · 3 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
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🔍 Analysis
- 👍 0.6% endorsement rate
- 🏆 #19 of 49 Utilities mods in this game by downloads
📋 About This Mod
BASE OBJECT SWAPPER
Requirements
Address Library for F4SE Plugins
Visual C++ Redistributables 2019
BakaFramework
Description
F4SE utility plugin that allows mod authors to swap base objects with others, using config files.
This is a port of Base Object Swapper from Skyrim Special Edition.
With this mod, you could...
-
[]assign different model variants to misc objects at random
Due to Fallout 4's precombine system, swapping statics and static collections is not recommended.
How To Use
Distributed records should be written to an ini file containing the suffix "_SWAP", in the Data folder (for example, MyMod_SWAP.ini).
They should follow this general format:
origBaseID|swapBaseID|transformOverrides|chance
origBaseID|swapBaseID,swapBase2ID,swapBase3ID|transformOverrides|chance
origRefID|swapBaseID|transformOverrides|chance
origBaseID|swapBaseID|transformOverrides|chance
ID can be either formID or editorID of the object
ObjectFormID~ModName.esp OR ObjectEditorID
origBase is the base object you're trying to replace (eg. all farmhouse statics).
origRef is the specific object reference you're trying to replace (ie. a specific farmhouse in Riverwood).
swapBase is the replacement object you're replacing it with (eg. your farmhouse static with new model).
Locational replacements
- [
[]Requires location/cell editorID or keyword editorID (for location)
;this swaps all CoffeeCup01 misc objects in Diamond City for cracked variants
CoffeeCup01|CoffeeCupCracked01
;this swaps all coffee cups with cleaned variants in locations with LocTypeBar keyword
CoffeeCup01|CoffeeCup01clean
Property Overrides
Transforms
-
[]Change the position, rotation and scale of swapped objects
[]pos - position
[]rot - rotation
[]scale - scale
[]units must be in floats (20. 0)
[*]A/R suffixes for setting relative vs ab
Base Object Swapper is a Fallout 4 Script Extender (F4SE) framework that allows modders to swap base objects and references via config files. With 4,445 endorsements and 732,607 downloads, it's a widely adopted utility for mod authors. Last updated November 2025, it remains actively maintained.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust: 4,445 endorsements and over 730k downloads show this is a staple for modders.
- Actively maintained (last updated Nov 2025) — you're not installing abandoned code.
- Config-file driven approach means mod authors can create swaps without heavy scripting.
⚠️ Cons
- Not a plug-and-play mod for players — it's a framework, so you need other mods that use it to see any effect.
- Requires F4SE, which means you must have the correct game version and F4SE installed, adding setup steps.
- Documentation is minimal in the description; you'll need to dig into the mod's files or forums to learn the config syntax.
For Fallout 4 mod authors and advanced users who want to create or use mods that swap objects dynamically. If you're a player looking for immediate visual changes, skip unless you already have mods that depend on this framework.
💡 Beginner Tips
- Make sure your Fallout 4 game version matches the F4SE version you install, or the framework won't load.
- Use a mod manager like Vortex or MO2 to install this and any dependent mods, keeping load order clean.
- Check the mod's forum posts or comments for example config files if you're writing your own swaps.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- powerofthree
- Version
- 2.2.1
- Downloads
- 732,607
- Endorsements
- 4,445
- Category
- Utilities
- Created
- 1/5/2023
- Updated
- 11/30/2025
🔗 Required By 9 Mods
These mods list this mod as a dependency.
🧩 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
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