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

Spawners Override

Spawner Upgrades

Last modified 1yr ago

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