No Fall Damage — Valheim Mod

Author: YouDied
Version: 1.0.0

Zero configuration. Install and forget — your character takes absolutely no fall damage.

How it works

Valheim tracks the highest altitude a character reaches while airborne in a field called m_maxAirAltitude. When the character lands, the engine subtracts the landing Y position from that peak to get the fall distance, then applies damage.

This mod patches Character.UpdateGroundContact via Harmony. Every frame, it resets m_maxAirAltitude to the character's current Y position, so the engine always sees a fall distance of zero → no damage.

Prerequisites

BepInEx 5.x installed in your Valheim folder
.NET SDK (6.0 or later) for building
Valheim installed via Steam

Build

Open NoFallDamage.csproj in a text editor and update <ValheimDir> to your Valheim install path if it differs from the default.
Build from the project folder:
```
dotnet build -c Release
```
The compiled DLL ends up in bin\Release\netstandard2.1\NoFallDamage.dll.

Install

Copy NoFallDamage.dll into:

<ValheimDir>\BepInEx\plugins\

Launch Valheim. You'll see this line in BepInEx\LogOutput.log confirming it loaded:

[Info   :  No Fall Damage] No Fall Damage loaded — fall damage disabled.

Uninstall

Delete NoFallDamage.dll from the BepInEx\plugins\ folder.

Compatibility

Works in single-player and multiplayer (client-side only; the server doesn't need it).
No config file, no settings, no dependencies beyond BepInEx.
Safe to add or remove mid-playthrough.

Details

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