Hardcore Chems - Detrimental chem effects
⚪ 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
- 👍 0.9% endorsement rate
- 🏆 #192 of 435 Gameplay Effects and Changes mods in this game by downloads
📋 About This Mod
Hardcore Chems - Detrimental chem effects
What is this
This mod makes chems like Stimpaks, Radaway or Jet hurt some of your needs. On the other hand, some chems now help you fight sleep deprivation.
Quick overview: Stimpaks and Radaway will make you thirsty and hungry respectively. Both will also make you sleepy, same goes for most drugs save for the ones that actually wake you up like Jet or Mentats.
Detailed effects here.
Notice that in the pipboy, detrimental needs will show has positive (+100 H2O) while being detrimental. This means you are getting 100 damage to
your hydration, at 1000 you ded.
Why is this
Because I'm always looking to enhance the difficulty of my game and Fallout 4 did some things right. That said, the type and strength of this effects have been engineered by me, with fun and balance in mind. Vanilla beneficial values have been taken as a guide, but changes to these will not affect Hardcore Chems.
How is this
The mod adds new effects using cool functions from JIPLN. It detects jsawyer, JSawyer Ultimate or sawyerbatty and adds effects to their stimpak variations as well. It does not modify any value from the items. Only one script that runs one time per session. It is safe to install and uninstall mid playthrough.
To install: Use a mod manager or just drop the plugin into your New Vegas Data folder.
Requires Lonesome Road
Requires NVSE (silverlock version will work too)
Requires JIP LN NVSE
Does not require any jsawyer mod
Issues
There is one problem: Sometimes, a chem effect will get stuck on your save somehow and appear when you load a save for the first time. Reloading that save fixes the issue. I haven't found the cause of this, and it seems to be a problem with the game engine, as making a clean save does not fix the problem. Removing the mod will remove the mod effects, as it should.
A workaround has been added in recent version but it comes with a downside; On the first game load, recently taken chems will be removed from your character. This can be avoided by reloading that save. The fix will run for 6 seconds, so chems taken on the first 6 second after the first load will also be removed.
Check other mods by me
Hardcore Chems modifies several aid and chem items in Fallout 4 to add negative effects on hardcore needs, such as stimpaks causing thirst and sleepiness. Inspired by survival mode but not identical, this mod is fully compatible and lightweight, with 74 endorsements and over 8,000 downloads.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Adds a fresh layer of challenge for survival enthusiasts (74 endorsements).
- Over 8,000 downloads show it's got a solid niche following.
- Fully compatible—no need to worry about conflicts with your load order.
⚠️ Cons
- Last updated in 2023—might not be patched for the latest game version.
- Only 74 endorsements, so it's a niche mod that might not be for everyone.
For Fallout 4 players who want survival mode's harshness without the full overhaul. If you're a hardcore roleplayer looking to make chems a double-edged sword, this is for you. Skip if you prefer chems as pure buffs or want a more comprehensive survival mod.
💡 Beginner Tips
- Since it's fully compatible, you can install it with your mod manager and it should work fine.
- Test with a stimpak early to see how the thirst and sleepiness affect your playstyle.
- Pair with survival mode or a needs mod to get the full hardcore experience.
📊 Mod Details
- Game
- New Vegas Mods
- Author
- Huerta
- Version
- 1.1
- Downloads
- 8,308
- Endorsements
- 74
- Category
- Gameplay Effects and Changes
- Created
- 10/26/2020
- Updated
- 2/10/2023
🔧 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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