Monster Modifiers

v1.2.7·Updated 2025-08-20

Monsters spawn with random infusions, effects, or modifiers for increased challenge.

Screenshots 8 screenshots

About this mod Author’s original text

Monster Modifiers

This mod adds 31 modifiers that are randomly assigned to a monster when it spawns. A monster will have one modifier per star.

Features

  • Adds 31 monster modifiers.
  • Modifiers are not applied to bosses, only standard monsters.
  • One modifier per monster star. Two star monster = two unique modifiers.
  • Replaces monster star icons with modifier icons.

Modifier Details

| Modifier Name | Icon | Color | Description |

| ------------------ | ----------------------------------------------------------------------------------------- | ------------------ | ------------------------------------------------ |

| Stamina Siphon | | Yellow | Attack also drains stamina. |

| Eitr Siphon | | Purple | Attack also drains eitr. |

| Shield Breaker | | Yellow | If blocked, attacks reduce shield durability by 50%. |

| Ignore Armor | | Red | Attacks ignore 50% of armor. |

| Food Drain | | Red | Attacks reduce random food duration by 50%. |

| Fire Infused | | Red | Attacks do fire damage. |

| Frost Infused | | Light Blue | Attacks do frost damage. |

| Poison Infused | | Green | Attacks do poison damage. |

| Lightning Infused | | Yellow | Attacks do lightning damage. |

| Remove Status Effect | | Purple | Attack removes one random status effect. |

| Personal Shield | | Red | Spawns with personal shield. |

| Shield Dome | | Yellow | Spawns with shield dome, blocking projectiles from outside. |

| Soul Eater | | Red | When nearby monster dies, increase monster health, damage, and size. |

| Fast Movement | | Red | 50% increased movement speed. |

| Fast Attack Speed | | Yellow | 50% increased attack speed. |

| Distant Detection | | Purple | Detection and view range increased by 2x. |

| Elemental Immunity | | Purple | Immune to elemental damage |

| Pierce Immunity | | Red | Immune to pierce damage |

| Slash Immunity | | Red | Immune to slash damage |

| Blunt Immunity | | Red | Immune to blunt damage |

| Stagger Immune | | Yellow | Immune to stagger. |

| Poison Death | | Green | Poison cloud on death. |

| Fire Death | | Red | Fire nova on death. |

| Frost Death | | Light Blue | Frost nova on death. |

| Heal Death | | Purple | Healing nova on death. |

| Stagger Death | | Yellow | Stagger bomb on death. After 2-4 seconds, stagger all characters in 5m range |

| Tar Death | | Brown | Apply Tarred status effect to all characters in 5m range |

| Blood Loss | | Red | Player takes 30% max health damage when blood loss exceeds max health. |

| Absorption | | Light Blue | Heals for 100% of damage types it's immune when taking damage. |

| Vampiric | | Red | Monster heals for 100% of damage it deals |

| Wet | | Light Blue | Monster applies wet on hit |

| Quiet | | Red | Monsters makes no sound alert or idle sounds |

I've tried my best to make the icon color system simple. The icons roughly categorize the modifiers as:

  • Potion: Monster damage applied to another player stat
  • Broken Shield: Monster ignores armor or breaks shield
  • Apple: Monster has food drain
  • Sword: Monster attack is infused
  • Circle: Monster has shield
  • Asterisk: Monster has Soul Eater
  • Plus Square: Monster has improved attribute
  • Shield: Monster has immunnity
  • Skull: Monster spawns something on death

Modifier Mechanics

Elemental Infusions (Fire, Frost, Poison, Lightning)

  • The damage of the infusion is equal to 50% of player-damage types in the creatures current attack. Chop, pickaxe, and spirit are non-player damage types so they are removed.
  • For example, a troll attack does 60 Blunt, 100 Chop, 40 Pickaxe with 0 stars and standard world level. That's 60 player-damage.
  • If this troll has Fire Infused, then it will do an additional 30 fire damage when attacking.
  • The final attack will be 60 blunt damage + 30 fire damage.

Death Spawns (Fire, Frost, Frost)

  • Death spawn damage is 50% of creatures highest attack damage value.
  • Most Valheim creatures have multiple attacks available to them. Death spawn uses the highest available attack value.
  • If a creature has no attacks (ex. Dee

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file. In multiplayer, the host and every client need the same mods installed.

Dependencies

Install these first, or the mod will not work:

denikson-BepInExPack_ValheimValheimModding-YamlDotNetValheimModding-Jotunn

File & checksum

Filename
Monster_Modifiers-1.2.7.zip
File size
6.1 MiB