ActorCause Save Bloat Fix
⚪ Last updated 2023⚠️ Install Order · 5 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview
🔍 Analysis
- 👍 0.7% endorsement rate
- 🏆 #2 of 22 Performance mods in this game by downloads
📋 About This Mod
Description
Fixes a save bloating issue related to actors detecting the player, improving save/load speed and decreasing save size 10-30% depending on playthrough length.
Fully compatible with both vanilla and modded game saves. To bulk remove the bloat from existing saves (even if you no longer have the mods the save was created with) use the ActorCause Save Debloater.
Before/After on a 90 hour save
Installation
Use Mod Organizer 2/Nexus Mod Manager/FOMM, or manually extract the .zip file into your Fallout New Vegas 'Data' folder.
During gameplay, the game maintains 'ActorCause' objects, which track information about the source of projectiles and explosions. These objects contain the source actor, their position, and a list of all actors detecting them at the time the weapon is fired. Due to an oversight in the game's design, the list is not calculated correctly for the player, causing it to grow excessively large over time with potentially thousands of actors. This list is not used in-game, but it is still saved, leading to bloated save files.
For countless other engine fixes see lStewieAl's Tweaks.
Available in downloads.
If you feel like donating:
ActorCause Save Bloat Fix by lStewieAl addresses a save bloating issue caused by actors detecting the player, resulting in faster save/load times and a 10-30% reduction in save file size depending on playthrough length. This performance mod is essential for players experiencing large save files and slow loading.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust with 12,526 endorsements and 1.9M downloads
- Directly tackles a common performance issue for long playthroughs
- Simple, focused fix that can significantly reduce save file size
⚠️ Cons
- Last updated in April 2023 — may not be compatible with the latest game version
- Only addresses one specific cause of save bloat; other issues may remain
For players with large save files and slow load times, especially those on long playthroughs. If you're a modder or performance enthusiast, this is a must-have. Skip if you rarely save or have short playthroughs.
💡 Beginner Tips
- Install via your mod manager to ensure proper load order and easy removal.
- After installing, load a save and check the file size before and after to see the improvement.
- If you're using other performance mods, test for compatibility by running a quick save/load cycle.
📊 Mod Details
- Game
- New Vegas Mods
- Author
- lStewieAl
- Version
- 1.0
- Downloads
- 1,916,384
- Endorsements
- 12,526
- Category
- Performance
- Created
- 4/4/2023
- Updated
- 4/4/2023
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install New Vegas Mods
Download from Nexus.
📖 Full step-by-step install guide for New Vegas →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for New Vegas commands, item IDs, and more.
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