🌿 Monster Mayhem - Mod Documentation
Overview
Monster Mayhem is a major overhaul for Valheim, revamping the game's monster spawning system while introducing new creatures, encounters, and mechanics. It features:
- New spawners for existing vanilla monsters
- Modifications to vanilla spawners
- Brand new monsters with unique spawners
- Reworked raid and boss events
- Entirely new raid events
All in-game objects with the _bal suffix originate from this mod or its extensions.
🌍 To get all the changes on existing world, we recommend using the Upgrade World mod.
🌲 Key Features
- 🧟 20 brand-new monsters (with more coming soon!)
- 🔥 60+ new spawners for vanilla creatures
- 🌕 Unique events like Blood Moon and Dverger Revenge
- 🐗 New neutral monsters, complete with growth and behaviors
🌟 Content Highlights
- New monsters or variants added across all biomes
- Enhanced monster AI and behaviors
- Expanded event configurations for immersive experiences
Taming Breeding Hatching Growup changes
Balrond's Extended Animals expands Valheim with new tameable creatures, breeding systems, offspring growth chains, egg incubation mechanics, and unique diets.
Most creatures can:
- Be tamed
- Breed naturally
- Produce offspring, eggs, or special resources
- Grow through multiple life stages
- Require specific food types
Breeding & Taming Guide
General Breeding Requirements
Most creatures require:
- Two compatible adults nearby
- Food available
- Enough free population space
- Love points accumulation
- Successful pregnancy chance roll
Pregnancy duration and breeding chance vary by species.
Tameable Creatures
| Creature |
Tameable |
Commandable |
Taming Time |
| Asksvin |
Yes |
Yes |
3000 sec |
| Neck |
Yes |
No |
1800 sec |
| Neck Brute |
Yes |
Yes |
2400 sec |
| Boar |
Yes |
No |
1800 sec |
| Hog |
Yes |
Yes |
2400 sec |
| Stag |
Yes |
No |
3000 sec |
| Wolf |
Yes |
Yes |
2600 sec |
| Goat |
Yes |
No |
2400 sec |
| Lox |
Yes |
Yes |
4500 sec |
| Fox |
Yes |
No |
4500 sec |
| Volture |
Yes |
Yes |
3000 sec |
| Giant Crow |
Yes |
Yes |
3000 sec |
| Seeker |
Yes |
No |
3600 sec |
| Seeker Brute |
Yes |
No |
6000 sec |
| Habrok |
Yes |
No |
40000 sec |
| Bjorn |
Yes |
Yes |
8000 sec |
| Greyling |
Yes |
Yes |
2400 sec |
Breeding Table
| Parent Creature |
Offspring Produced |
Pregnancy Duration |
Pregnancy Chance |
| Asksvin |
Asksvin Egg |
180 sec |
20% |
| Neck + Neck Brute |
Neck Tadpole |
180 sec |
25% / 20% |
| Boar + Hog |
Piglet |
180-240 sec |
33% / 20% |
| Stag |
Fawn |
240 sec |
25% |
| Wolf |
Wolf Cub |
240 sec |
33% |
| Goat |
Goat Kid |
240 sec |
25% |
| Lox |
Lox Calf |
300 sec |
20% |
| Fox |
Fox Cub |
300 sec |
25% |
| Serpent |
Serpent Egg |
360 sec |
20% |
| Volture |
Volture Egg |
180 sec |
25% |
| Giant Crow |
Crow Egg |
120 sec |
25% |
| Leech + Primal Leech |
Leech Egg |
280 sec |
20% |
| Seeker + Seeker Brute |
Larva |
240-360 sec |
20% / 15% |
| Habrok |
Habrok Chick |
280 sec |
20% |
| Bjorn |
Bjorn Cub |
420 sec |
15% |
Special Breeding Rules
Necks
Necks breed with Neck/Neck Brutes.
Produces:
Boars
Boars breed with boar/Hogs.
Produces:
Deer
Stags breed with Stag/Deer.
Produces:
Leeches
Leeches breed with Leech/Primal Leeches.
Produces:
Seekers
Seekers breed with Seeker/Seeker Brutes.
Produces:
Goats
Goats have a unique mechanic.
Without a breeding partner they may produce:
With a partner they produce:
Egg Hatching
Some creatures reproduce through eggs.
Hatching Requirements
| Egg |
Hatchling |
Fire Required |
Roof Required |
Hatch Time |
| Volture Egg |
Volture Nestling |
Yes |
No |
6000 sec |
| Dragon Egg |
Hatchling |
Yes |
No |
9000 sec |
| Crow Egg |
Crow Nestling |
Yes |
No |
4000 sec |
| Serpent Egg |
Serpentling |
No |
No |
7000 sec |
| Leech Egg |
Leech Larva |
No |
No |
5000 sec |
| Larva |
Seeker Brood |
Yes |
No |
6000 sec |
Growth Chains
Many offspring mature into adult creatures.
Complete Growth Tree
| Young Creature |
Adult Result |
| Neck Tadpole |
Neck OR Neck Brute |
| Fawn |
Stag OR Deer |
| Piglet |
Hog OR Boar |
| Serpentling |
Serpent |
| Volture Nestling |
Volture |
| Crow Nestling |
Giant Crow |
| Leech Larva |
Leech OR Primal Leech |
| Fox Cub |
Fox |
| Wolf Cub |
Wolf |
| Seeker Brood |
Seeker OR Seeker Brute |
| Goat Kid |
Goat |
| Habrok Chick |
Habrok |
| Lox Calf |
Lox |
| Bunny |
Hare |
| Bjorn Cub |
Bjorn |
Growth Times
| Young Creature |
Growth Time |
| Bunny |
2500 sec |
| Neck Tadpole |
3500 sec |
| Fawn |
3500 sec |
| Piglet |
3500 sec |
| Crow Nestling |
4000 sec |
| Leech Larva |
4000 sec |
| Wolf Cub |
4000 sec |
| Fox Cub |
4500 sec |
| Goat Kid |
4500 sec |
| Volture Nestling |
5000 sec |
| Habrok Chick |
6000 sec |
| Lox Calf |
7000 sec |
| Serpentling |
8000 sec |
| Seeker Brood |
10000 sec |
| Bjorn Cub |
12500 sec |
Diet Guide
Herbivores
Eat plants, berries, vegetables, mushrooms, flowers and honey.
Includes
- Deer
- Stag
- Fawn
- Goat
- Goat Kid
- Hare
- Bunny
Birds
Eat:
- Seeds
- Berries
- Vegetables
- Mushrooms
- Bird Feed
Includes
- Giant Crow
- Crow Nestling
- Chicken
- Hen
- Penguin
Omnivores
Eat:
Includes
Carnivores
Eat:
- Raw meat
- Cooked meat
- Fish
- Serpent Meat
Includes
- Wolf
- Fox
- Volture Nestling
- Troll variants
- Ulv
- Yotun
- Wyvern
Apex Predators
Eat:
- Meat
- Blood items
- Serpent Meat
Includes
- Serpent
- Serpentling
- Habrok
- Habrok Chick
- Fenring
- Shark
- Frost Drake
Blood Drinkers
Consume blood-based resources.
Examples:
- Bloodbag
- Small Blood Sack
- Giant Blood Sack
- Bloodfruit
- Bloody Vial
- Bloody Cream Pie
Includes
- Leech
- Primal Leech
- Leech Larva
- Tick
- Bat
- Deathsquito
- Bloodling
Seekers
Eat almost everything:
Includes
- Seeker
- Seeker Brute
- Seeker Brood
Necks & Crab-like Creatures
Eat:
- Plants
- Fish
- Clam Meat
- Fishing Bait
Includes
- Neck
- Neck Brute
- Neck Tadpole
Bears
Eat:
Includes
- Bjorn
- Bjorn Cub
- Polar Bear
- Frost Bjorn
Greylings
Eat:
Population Limits
Breeding stops when the local population cap is reached.
| Creature Type |
Max Population |
| Hare |
12 |
| Neck |
8 |
| Neck Brute |
8 |
| Boar |
8 |
| Hog |
8 |
| Wolf |
8 |
| Asksvin |
8 |
| Leech |
7 |
| Goat |
6 |
| Lox |
6 |
| Fox |
6 |
| Volture |
6 |
| Giant Crow |
6 |
| Stag |
6 |
| Seeker |
5 |
| Serpent |
4 |
| Habrok |
4 |
| Bjorn |
4 |
Tips
- Eggs requiring fire must stay near a valid heat source.
- Serpent and Leech eggs do not require fire.
- Tamed offspring inherit taming status from their parents.
- Mixed breeding pairs are required for Necks, Boars, Deer, Leeches and Seekers.
- Goats can provide Milk even without a breeding partner.
- Population caps prevent infinite breeding farms.
Enjoy building your own animal farms and breeding rare creatures across Valheim!
🚫 Compatibility Notes
💬 Community & Support
📌 Additional Details
- Supports translations via
.json files in the mod folder
- Open to feedback and suggestions—help shape future updates!
- This is a BETA mode release it may contain bug or errors
- This is an early minimal version a lot is yet to come
📚 Table of Contents
Browse the sections below for FAQs, changelogs, and prefab listings.
❓ FAQ
How do i Upgrade_world with your stuff?
You only need to use those commands on already discovered part of your map. Non discovered will add my custom modifications. New maps don't require commands.
- Use command BalrondMonsterMayhem_trollcaveRemove : removes troll caves from black forest
- Use command BalrondMonsterMayhem_trollcaveAdd : add troll caves to Mountains and DeepNorth
- Use command BalrondMonsterMayhem_fixZoneAfterTroll : patches vegetation where troll caves been
Where do i find configs
There are no configs. There will be none. The mod is intended to be played the way it is. If you want changes there are tools like WackyDB and Expand World that can edit most of stuff in the mod.
If changes you require are beyond that then this mod might not be for your taste.
Does mod have server sync?
This mode does not require server sync to work at all. There is nothing to sync as there is no configs.
Are translations synced ?
Translation files are not sync they are only for local player usage.
I see a lot of [ tag_something_something ] !
Its either a bug with missing translations or you did not upload translations to your game.
translations found in config folder under BalrondMonsterMayhem-translation default file is English.json.
If you don't have this file . please re-download the mod and move the file to proper location.
How do i add translations?
translations found in config folder under BalrondMonsterMayhem-translation default file is English.json
Copy the default English.json rename it to Language supported by the game ex Polish.json and write your translations ex "tag_thswordsilver_bal_description":"Mój nowy wspaniały opis"
Can i translate other mods with this mod?
Yes you actually can ! If you add the name you see in brackets in game ex [ somename_something ] to the YourLanguage.json as "somename_something": "My translation" it will translate the other mod stuff as well as long as the mod is loaded after BalrondMonsterMayhem and the mod is present in plugins.
🧾 Changelog
🧬 Prefab ID
List:
- "MossRootStatic_bal",
- "Goleming_bal",
- "FrostDrake_bal",
- "WildWisp_bal",
- "CorpseCollector_bal",
- "Bunny_bal",
- "AshlandsGolem_bal",
- "Doe_bal",
- "NeckTadpole_bal",
- "Fenring_Brute_bal",
- "Fox_bal",
- "Penguin_bal",
- "Ell_bal",
- "LostSoul_bal",
- "LeechLarva_bal",
- "BjornCub_bal",
- "VoltureNestling_bal",
- "CrowNestling_bal",
- "CrabSea_bal",
- "CrabStone_bal",
- "DarkBat_bal",
- "Habrok_bal",
- "HabrokBirb_bal",
- "TrollOutcast_bal",
- "TrollBrute_bal",
- "Frostbjorn_bal",
- "FrostbjornBrown_bal",
- "Deathsquito_bal",
- "GhostYagluth_bal",
- "GiantCrow_bal",
- "GoatKid_bal",
- "Goat_bal",
- "goblin_skeleton_bal",
- "Greydwarf_Crusher_bal",
- "Greydwarf_Frozen_bal",
- "Greydwarf_Moss_bal",
- "Greydwarf_Scorched_bal",
- "GreylingBeeKeeper_bal",
- "GreylingElite_bal",
- "Hog_bal",
- "LeechPrimal_bal",
- "MossRoot_bal",
- "Moth_bal",
- "NeckBrute_bal",
- "Serpentling_bal",
- "Shark_bal",
- "StagGhost_bal",
- "Stag_bal",
- "Stormdrake_bal",
- "TrollUndead_bal",
- "Fox_cub_bal",
- "PolarBear_bal",
