NPC health overflow fix - F4SE

by tryname·v1.0.0·Updated 2026-09-08

The engine level has been fixed to solve the problem of NPC having too high health and negative health when its level attribute is too high.

About this mod Machine translation

The engine level has been fixed to solve the problem of NPC having too high health and negative health when its level attribute is too high.

Original address:

Prefix:

Address Library for F4SE Plugins:

Fallout 4 Script Extender (F4SE):

Push the level of the NPC high enough (such as the console suit level, or the PC level multiplayer that follows high-level players), and their health volume will quietly become about -30992. They won't drop dead on the spot, but the next hit or any radiation damage will kill them instantly. This will also quietly cause bleeding companions to collapse. Game files will not be modified. NPCs that have been damaged can be restored by resetting their health to a positive value (setav health).

Install

Install using your mod manager.

Uninstall at any time.

The game version is

OG/NG/AE。

Image source: CommonlibF4 team

source code

GitHub

My other F4SE fixes

Install & use Install: follow the bundled instructions

  1. Unzip the archive from playbuff and read the bundled readme / instructions first.
  2. There is no universal mod manager for this game: some mods replace game files directly, some go into a game-specific Mods folder, and some need a game-specific community loader or tool first — follow the bundled readme.
  3. Place the files exactly as the readme says; mods with listed dependencies need those installed too.
  4. Launch the game to confirm it loaded; some games require enabling mods in settings or an in-game mod menu.

Install locations vary a lot between games and mods — the bundled readme is the most reliable guide.

File & checksum

Filename
SetLevel Health Fix F4SE 108639 1.0.0 2026-09-02T12-57Z Ej72GK5ea.zip
File size
291.2 KiB
SHA-256
e7a57fcc272558085f7c859d3b8eeadcbf9a811e5b459e500c948f5afaee6f73
Stored at
2026-10-10 17:18