ZeX - ZaZ Extended Skeleton
⚪ Last updated 2023⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 1.8% endorsement rate — high engagement, a strong quality signal
- 🏆 #7 of 73 Animation mods in this game by downloads
📋 About This Mod
It has been close to 3 years since Fallout 4 has been released. And since no one (Other than Vader666) has tried to Create/Implement an extended skeleton yet.
It begins.. with the Official Release of the Extended Skeleton.
This is the official page for the Skeleton and all it's future updates. Thank you for your patience!
What this Mod Does
This mod adds Animation Based & OCBP Physics support for the following body parts
Breast Bones
Belly Bones
Tongue Bones
Penis/with Testicle Bones
Vagina / Anus Bones
This is required by mods like Fusion Girl and BT3 for support of their bodies Fucntions. This can also be used in various Adult animations found on the site.
Basic: the Basic Support Option. This supports all the Adult anims, BT3/FG and That's it
ScreenArcher: This supports the ScreenArcherMenu mod with full control for posing purposes on top of the basic support for Adult anims and BT3/FG
Join the ZeX Discord for support!
ZeX - ZaZ Extended Skeleton is a Fallout 4 animation mod that adds new bones to the 3rd person skeleton, enabling animators to independently animate breast and butt areas. With 22,336 endorsements and 1.3M downloads, it's a popular framework for custom animations.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Massive community trust – 22k endorsements and 1.3M downloads speak for themselves.
- Essential for animation modders – opens up new body parts for custom animations.
- Still relevant – last updated in 2023, so it's not abandoned.
⚠️ Cons
- Not for casual players – this is a framework for animators, not a plug-and-play animation pack.
- Requires technical knowledge – you need to understand skeletons and animation modding to use it.
- Potential compatibility issues – any mod that alters the skeleton may conflict.
For Fallout 4 animation modders who want to create custom animations with independent breast and butt movement. Also for players who use animation mods that depend on this skeleton. Skip if you're just looking for gameplay changes – this is a backend tool.
💡 Beginner Tips
- If you're a modder, make sure your animation mods list ZeX as a dependency so users know to install it.
- For players, install this mod before any animation mods that require it, and use a mod manager to avoid overwriting issues.
- Check if your other skeleton mods are compatible – conflicting skeleton overrides can break animations.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- ZaZ and The ZeX Team
- Version
- 6.0
- Downloads
- 1,257,777
- Endorsements
- 22,336
- Category
- Animation
- Created
- 12/31/2018
- Updated
- 6/20/2023
🔧 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