MonsterFallDamage

Monsters — and optionally the player — now take fall damage with a fully configurable formula.
By default the settings match Valheim's vanilla player values, but you can freely tune or remove the damage cap.

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Features

• All monsters take fall damage on landing
• Player fall damage now uses the same configurable formula (toggle via Apply To Player)
• Same formula as vanilla player by default
• Dead monsters are safely ignored
• Multiplayer-safe (only the network owner calculates damage)
• Compatible with BepInEx Configuration Manager for in-game adjustments
• Natural movement is not punished: height gained from a creature's own jump is ignored, and flying creatures (e.g. Moder) take no damage when landing
• Slimes (all Blob variants) are immune to fall damage
• Optional debug log for checking each landing (off by default)

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Configuration

Located at: BepInEx/config/com.mods.monsterfallDamage.cfg

Setting	Default	Description
Apply To Player	true	Apply this formula to the player as well (overrides Valheim default)
Min Fall Height (m)	4	Falls below this height deal no damage
Damage Interval (m)	16	Damage added for every X meters fallen above the minimum
Damage Per Interval	100	Damage dealt per interval
Max Damage (0 for unlimited)	100	Cap on fall damage. 0 means no limit

Default formula (same as player):

damage = (fallHeight - 4) / 16 × 100, capped at 100

Example — harsher setting (100 dmg per 6.5m, no cap):

Min Fall Height: 4 / Damage Interval: 6.5 / Damage Per Interval: 100 / Max Damage: 0

Fall Exemption

Setting	Default	Description
IgnoreJumpAscent	true	Height gained by a creature's own jump is not counted. Hopping on flat ground deals no damage; jumping off a cliff counts only the drop below the take-off point
IgnoreFlyingLandings	true	Flying creatures take no fall damage from their flight altitude, including a short grace period after they land
FlyingLandingGraceSeconds	3	Grace period (seconds) after a flying creature lands
ExemptPrefabPrefixes	Blob	Creatures whose prefab name starts with one of these prefixes (comma-separated, case-insensitive) never take fall damage

Debug

Setting	Default	Description
EnableDebugLog	false	Logs every landing (height, exemption reason, damage) to the BepInEx log
Debug Log Toggle Key	LeftAlt + F8	Turns the debug log on/off in game. The current state is shown on screen

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Installation

1. Install BepInExPack Valheim
2. Drop MonsterFallDamagePlugin.dll into BepInEx/plugins/
3. Launch the game — config file is auto-generated on first run

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Compatibility

• Valheim (latest)
• Works alongside other mods that add custom monsters
• No known conflicts

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Reporting a Problem

If a monster takes fall damage when it shouldn't (or doesn't when it should), a log helps a lot:

1. In game, press LeftAlt + F8 — the message MonsterFallDamage log: ON appears
2. Reproduce the problem (let the monster jump, fly or fall the same way as before)
3. Press LeftAlt + F8 again to turn the log off
4. Close the game and find BepInEx/LogOutput.log in your mod manager profile folder
   • Gale / r2modman: Settings → Browse profile folder → BepInEx/LogOutput.log
5. Email the log file to [email protected], with a short note on which monster it was and what happened

The log is off by default and has no effect on gameplay. Leaving it on for a long session makes the log file large, so turn it off after reproducing.

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Changelog

1.1.1

• New: Debug Log Toggle Key (default: LeftAlt + F8) — turn the debug log on/off in game without restarting
• New: "Reporting a Problem" guide in this README
• Changed: Code cleanup — no gameplay or formula changes
• Existing settings are unchanged

1.1.0

• New: Natural landings are no longer punished
  • Jumps: height gained by a creature's own jump is not counted — hopping on flat ground (e.g. Blobs) deals no damage, and jumping off a cliff only counts the drop below the take-off point
  • Flying creatures (e.g. Moder): no fall damage from flight altitude, plus a short grace period after landing
• New: Slimes (all Blob variants) are now immune to fall damage — configurable via ExemptPrefabPrefixes
• Changed: Landing is now detected only at the moment a creature goes from airborne to grounded
• New: EnableDebugLog option (default: false)
• Existing settings and the damage formula are unchanged

1.0.5

• New: Apply To Player config option (default: true) — the player now uses the same configurable fall damage formula instead of the hardcoded Valheim default. Set to false to restore vanilla player behavior.

1.0.4

• Bug Fix: The plugin was completely non-functional since release. The config key Max Damage (0 = unlimited) contained an illegal character (=), which caused BepInEx to throw an ArgumentException on startup and abort plugin initialization. As a result, no fall damage was ever applied to monsters. Fixed by renaming the key to Max Damage (0 for unlimited).

1.0.1

• Config descriptions changed to English
• Manifest description updated to English
• Package structure improved (plugin subfolder)

1.0.0

• Initial release