MonsterLabZ (Valheim 1.0.21)

Explore Valheim with new monsters to fight. This is a community patch of MonsterLabZFix 3.0.12 so the plugin loads on Valheim 1.0.21.

Original mod: https://thunderstore.io/c/valheim/p/MonsterLabZ/MonsterLabZ/

Previous restore: https://thunderstore.io/c/valheim/p/MonsterLabZFix/MonsterLabZ/

All credits go to the original author DefendYourBase. Creatures, locations, and assets belong to them. Do not treat this as a new content pack.

Requires denikson-BepInExPack_Valheim-5.4.2360.

What 3.0.16 changes

Jumping Spider and Tree Spider spawn in the Black Forest, not Meadows. Lightning storms spawn in the Plains during thunderstorms, not Meadows.

ML_PlantGrow implements Hoverable.GetHoverOffset(). HitAreaSFX.Damage, ML_PlantGrow.Grow, and Ship.UpdateWaterForce call the current EffectList.Create method.

Spider hit and death sounds use MonsterLabZ.cfg under Spider Sounds. Default volume is 0.35.

Install

Install on client and dedicated server. Remove any other MonsterLabZ / MonsterLabZFix DLL first so you only have one copy.

If you already have a MonsterLabZ.cfg, existing biome values are kept. Delete those biome lines (or the whole file) once if you want the new Meadows-safe defaults.

A handful of creatures spawn by default. Configure the rest with Spawn That or the official BepInEx Configuration Manager.

https://valheim.thunderstore.io/package/Azumatt/Official_BepInEx_ConfigurationManager/

Notes

• Missing prefab hash on an old world can continue after this fix if leftover objects were saved when the plugin was broken. A new world is the clean test.
• This package is a compatibility patch. If the original author updates MonsterLabZ for 1.0, switch back to that.

3.0.18

• Confirmed compatible with installed Valheim 1.0.21 (assembly dated 2026-10-28).
• FPS: use Renderer.sharedMaterial instead of Renderer.material for texture-scroll effects, so each billboard does not create a unique material instance (extra draw calls).
• FPS: replace per-physics-tick collider.tag == "..." with CompareTag.
• FPS: remove empty WaterSafing.Update so Unity does not invoke a no-op every frame.

3.0.17

• Changelog update.(beautify).

3.0.16

• Valheim 1.0.21 compatibility: Hoverable.GetHoverOffset and current EffectList.Create (6-arg, ZDOID).
• BepInEx dependency set to denikson-BepInExPack_Valheim-5.4.2360.
• Jumping Spider and Tree Spider no longer spawn in Meadows; they spawn in the Black Forest.
• Lightning storms no longer spawn in Meadows; they spawn in the Plains during thunderstorms.
• Creature Manager default biome is None instead of Meadows, so unset creatures do not leak into Meadows.

3.0.15

• Spider hit and death sounds, including Frigga and spider eggs, can be turned down in MonsterLabZ.cfg under Spider Sounds. Default volume is 0.35.
• HitAreaSFX, plant growth, and ship wave impact now call the current EffectList.Create method.

3.0.14

• Readme file update.

3.0.13

• Valheim 1.0 fix: MonsterLabZ.ML_PlantGrow now implements Hoverable.GetHoverOffset(), which stops VTable setup of type MonsterLabZ.ML_PlantGrow failed / The script 'MonsterLabZ.ML_PlantGrow' could not be instantiated!
• This was the cause of prefabs failing to register and the repeating Missing prefab hash warnings.

3.0.12

• patch 0.221.10

3.0.11

• translations encoding fixed
• link to original mod added

3.0.10

• Initial fixed version release