NPCs Accrue Radiation
🟡 Updated this year⚠️ Install Order · 6 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview
🔍 Analysis
- 👍 0.1% endorsement rate
- 🏆 #153 of 383 Gameplay Effects and Changes mods in this game by downloads
📋 About This Mod
Through the power of Stewie's Tweaks, NPCs can now accumulate Rads. Unfortunately, just turning the setting on isn't enough, as there are a couple game settings that also affect rad accumulation, as well as how NPCs react to radiation. This mod packages this tweak turned on, as well as the adjustments to the appropriate game settings that allow NPCs to both accrue, and react, to radiation.
There is also a Scriptrunner and a config that allows you to configure how many rads NPCs can accrue, up to and including a deadly amount. That's right - if you so wish, NPCs can die from radiation. Everything is configurable via MCM as well thanks to MCM Extender.
Compatibility
Automatically Compatible with all mod-added NPCs and mod-added sources of radiation.
A Word of Warning
I would warn about putting some of the settings too low though, as you may have NPCs effectively loop between moving away from radiation, and moving back to wherever they are trying to stand. Also the game settings do not dictate if an NPC will try to avoid radiation or not by themselves. Other factors such as combat, or the NPCs current package also come into play to determine if an NPC would try to avoid radiation or not.
Credits
Credit to lStewieAl for tweaks
Credit to Wall_SoGB for writing the actual tweak at my request
Credit to OrgasmicSneeze for the mod thumbnail and banner
This mod, built on Stewie Tweaks, lets NPCs in Fallout 4 accumulate radiation up to a configurable limit, including lethal doses. It's a niche gameplay tweak for players who want radiation to affect NPCs realistically. With 41 endorsements and recent updates, it's a small but maintained utility.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Adds a layer of realism for players who want radiation to matter for NPCs.
- Configurable limit means you can tune it to your preferred difficulty.
- Built on Stewie Tweaks, a trusted framework, so it's likely stable.
⚠️ Cons
- Requires Stewie Tweaks as a dependency, so you'll need to install that first.
- Niche feature—only affects NPC radiation, not other gameplay systems.
- Low endorsement count (41) suggests it's not widely tested by the community.
For Fallout 4 players who enjoy hardcore survival mechanics and want NPCs to suffer the same radiation effects as the player. Skip if you prefer a more casual experience or don't want to mess with Stewie Tweaks.
💡 Beginner Tips
- Make sure Stewie Tweaks is installed and up to date before adding this mod.
- Use a mod manager like Vortex or Mod Organizer 2 to handle the installation and load order.
- Test the radiation limit in a new save to see how it affects gameplay before committing to a long playthrough.
📊 Mod Details
- Game
- New Vegas Mods
- Author
- FinalCatalyst
- Version
- 1.0.0
- Downloads
- 32,386
- Endorsements
- 41
- Category
- Gameplay Effects and Changes
- Created
- 12/14/2025
- Updated
- 12/14/2025
🔧 How to Install New Vegas Mods
Download from Nexus.
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Visit the official mod page for specific installation instructions for this mod.
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