Spawn Conditions

Spawn Conditions are a way for you to override the vanilla conditions system, and configure conditions of your own.

To add a mob to override, simply create a list for a mob under the spawn-conditions option in the entities section of the config.yml. You can find a list of entities that correspond to the version of your server by clicking here.

Examples

# Setting an empty list to a mob will remove all spawn conditions
spawn-conditions:
  COW: []

# This example will remove all other spawn conditions and only have NOT_PEACEFUL as a spawn condition for Zombie.
spawn-conditions:
  ZOMBIE:
  - NOT_PEACEFUL

Conditions

This is a list of spawn-conditions available by default.

Note that not all these conditions exist, depending on your server version. Be sure to check Mob Group!

Condition	Description	Mob Group
ANIMAL_LIGHT	Checks for Light Level above 8	All Animals
ANIMAL_LIGHT_AND_COLD	Checks for Light Level above 8, but also checks for a Cold Biome	Polar Bears
BELOW_SEA_LEVEL	Checks for Below Sea Level	Dolphins
DARK_BLOCK_LIGHT	Checks for Light Level below 8	Pillagers
IN_LAVA_AND_AIR_ABOVE	Checks for Lava Block and Air above Spawn Location	Striders
IN_SEA_SURFACE	Checks if the Y-Level is the Sea Surface	Turtles
IN_SLIME_CHUNK_OR_SWAMP	Checks for Slime Chunk or Swamp Biome	Slimes
IN_WATER_DEEP	Checks if Location is in Deep Water	All Fish
MONSTER_LIGHT	Checks for Monster Light Restrictions, this has more conditions than DARK_BLOCK_LIGHT	All Monsters
NOT_IN_OCEAN	Checks for Biomes that aren't Ocean	Dolphins
NOT_IN_OCEAN_DEEP	Checks for Y-Level above 45, for not too Deep Oceans	Dolphins
NOT_ON_NETHER_WART_BLOCK	Checks for Blocks that are not on a Nether Wart Block	Zombified Piglins
NOT_PEACEFUL	Checks for Difficulty that is not Peaceful	All Monsters
ON_GRASS	Checks for Grass Block	All Animals
ON_GRASS_OR_SAND_OR_SNOW	Checks for Grass Block, a Sand or Snow Block	Rabbits
ON_MYCELIUM	Checks for Mycelium Block	Mooshroom
ON_NETHER_WART_BLOCK	Checks for Nether Wart Block	Hoglins + Piglins
ON_SAND	Checks for Sand Block	Turtles
ON_TREE_OR_AIR	Checks for a Tree Log block or Air	Parrots
ON_AXOLOTL_SPAWNABLE	Checks for axolotl spawnable blocks	Axolotls
ON_FOX_SPAWNABLE	Checks for fox spawnable blocks	Foxes (1.18)
ON_GOAT_SPAWNABLE	Checks for goat spawnable blocks	Goats (1.18)
ON_RABBITS_SPAWNABLE	Checks for rabbits spawnable blocks	Rabbits (1.18)
IN_FISH_WATER	Checks if location is in water, in the 13 top levels of the sea	Fish (1.18)
IN_FISH_WATER_OR_LUSH_CAVES	Similar to IN_FISH_WATER or in lush caves	Tropical Fish (1.18)
COMPLETE_DARKNESS	Check for light level of 0	All Monsters (1.18) / Axolotls (1.17)
IN_RIVER	Check for river or frozen river biomes	Dolphins
IN_OCEAN_DEEP	Check for ocean and below level 30	Glow Squid