Vanilla Usage Spawn Rules

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biome_filter

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armadillo

json

"minecraft:biome_filter": {
    "test": "has_biome_tag",
    "value": "savanna"
}

json

"minecraft:biome_filter": {
    "all_of": [
        {
            "test": "has_biome_tag",
            "value": "mesa"
        },
        {
            "test": "has_biome_tag",
            "operator": "not",
            "value": "plateau"
        }
    ]
}

json

"minecraft:biome_filter": {
    "all_of": [
        {
            "test": "has_biome_tag",
            "value": "mesa"
        },
        {
            "test": "has_biome_tag",
            "value": "plateau"
        }
    ]
}

axolotl

json

"minecraft:biome_filter": {
    "test": "has_biome_tag",
    "operator": "==",
    "value": "lush_caves"
}

bat

json

"minecraft:biome_filter": {
    "any_of": [
        {
            "test": "has_biome_tag",
            "operator": "==",
            "value": "caves"
        },
        {
            "test": "has_biome_tag",
            "operator": "==",
            "value": "animal"
        }
    ]
}

bee

json

"minecraft:biome_filter": [
    {
        "test": "has_biome_tag",
        "operator": "==",
        "value": "plains"
    },
    {
        "test": "has_biome_tag",
        "operator": "==",
        "value": "sunflower_plains"
    },
    {
        "test": "has_biome_tag",
        "operator": "==",
        "value": "flower_forest"
    }
]

bogged

json

"minecraft:biome_filter": {
    "any_of": [
        {
            "test": "has_biome_tag",
            "operator": "==",
            "value": "swamp"
        },
        {
            "test": "has_biome_tag",
            "operator": "==",
            "value": "mangrove_swamp"
        }
    ]
}

chicken

json

"minecraft:biome_filter": {
    "test": "has_biome_tag",
    "operator": "==",
    "value": "animal"
}

brightness_filter

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armadillo

json

"minecraft:brightness_filter": {
    "min": 7,
    "max": 15,
    "adjust_for_weather": false
}

json

"minecraft:brightness_filter": {
    "min": 7,
    "max": 15,
    "adjust_for_weather": false
}

json

"minecraft:brightness_filter": {
    "min": 7,
    "max": 15,
    "adjust_for_weather": false
}

bat

json

"minecraft:brightness_filter": {
    "min": 0,
    "max": 4,
    "adjust_for_weather": true
}

bee

json

"minecraft:brightness_filter": {
    "min": 7,
    "max": 15,
    "adjust_for_weather": false
}

bogged

json

"minecraft:brightness_filter": {
    "min": 0,
    "max": 7,
    "adjust_for_weather": true
}

chicken

json

"minecraft:brightness_filter": {
    "min": 7,
    "max": 15,
    "adjust_for_weather": false
}

cow

json

"minecraft:brightness_filter": {
    "min": 7,
    "max": 15,
    "adjust_for_weather": false
}

delay_filter

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pillager_patrol

json

"minecraft:delay_filter": {
    "min": 600,
    "max": 660,
    "identifier": "minecraft:pillager_patrol_easy",
    "spawn_chance": 20
}

json

"minecraft:delay_filter": {
    "min": 600,
    "max": 660,
    "identifier": "minecraft:pillager_patrol_normal",
    "spawn_chance": 20
}

json

"minecraft:delay_filter": {
    "min": 600,
    "max": 660,
    "identifier": "minecraft:pillager_patrol_hard",
    "spawn_chance": 20
}

density_limit

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axolotl

json

"minecraft:density_limit": {
    "underground": 5
}

bat

json

"minecraft:density_limit": {
    "surface": 5
}

cod

json

"minecraft:density_limit": {
    "surface": 20
}

creeper

json

"minecraft:density_limit": {
    "surface": 5
}

dolphin

json

"minecraft:density_limit": {
    "surface": 5,
    "underground": 0
}

drowned

json

"minecraft:density_limit": {
    "surface": 5
}

json

"minecraft:density_limit": {
    "surface": 2
}

json

"minecraft:density_limit": {
    "underground": 5
}

difficulty_filter

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bogged

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

creeper

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

drowned

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

enderman

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

json

"minecraft:difficulty_filter": {
    "min": "easy",
    "max": "hard"
}

disallow_spawns_in_bubble

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axolotl

json

"minecraft:disallow_spawns_in_bubble": {}

distance_filter

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cod

json

"minecraft:distance_filter": {
    "min": 12,
    "max": 32
}

pillager_patrol

json

"minecraft:distance_filter": {
    "min": 24,
    "max": 48
}

json

"minecraft:distance_filter": {
    "min": 24,
    "max": 48
}

json

"minecraft:distance_filter": {
    "min": 24,
    "max": 48
}

pufferfish

json

"minecraft:distance_filter": {
    "min": 12,
    "max": 32
}

salmon

json

"minecraft:distance_filter": {
    "min": 12,
    "max": 32
}

json

"minecraft:distance_filter": {
    "min": 12,
    "max": 32
}

tropicalfish

json

"minecraft:distance_filter": {
    "min": 12,
    "max": 32
}

height_filter

Show

cod

json

"minecraft:height_filter": {
    "min": 0,
    "max": 64
}

dolphin

json

"minecraft:height_filter": {
    "min": 0,
    "max": 64
}

glow_squid

json

"minecraft:height_filter": {
    "min": -64,
    "max": 30
}

pufferfish

json

"minecraft:height_filter": {
    "min": 0,
    "max": 64
}

salmon

json

"minecraft:height_filter": {
    "min": 0,
    "max": 64
}

json

"minecraft:height_filter": {
    "min": 50,
    "max": 64
}

stray

json

"minecraft:height_filter": {
    "min": 60,
    "max": 66
}

tropicalfish

json

"minecraft:height_filter": {
    "min": 0,
    "max": 64
}

herd

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armadillo

json

"minecraft:herd": {
    "min_size": 2,
    "max_size": 3
}

json

"minecraft:herd": {
    "min_size": 1,
    "max_size": 2
}

json

"minecraft:herd": {
    "min_size": 1,
    "max_size": 2
}

axolotl

json

"minecraft:herd": {
    "min_size": 4,
    "max_size": 6,
    "event": "minecraft:entity_born",
    "event_skip_count": 2
}

bat

json

"minecraft:herd": {
    "min_size": 8,
    "max_size": 8
}

bee

json

"minecraft:herd": {
    "min_size": 1,
    "max_size": 1
}

bogged

json

"minecraft:herd": {
    "min_size": 1,
    "max_size": 2
}

chicken

json

"minecraft:herd": {
    "min_size": 2,
    "max_size": 4
}

mob_event_filter

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pillager_patrol

json

"minecraft:mob_event_filter": {
    "event": "minecraft:pillager_patrols_event"
}

json

"minecraft:mob_event_filter": {
    "event": "minecraft:pillager_patrols_event"
}

json

"minecraft:mob_event_filter": {
    "event": "minecraft:pillager_patrols_event"
}

permute_type

Show

pillager_patrol

json

"minecraft:permute_type": [
    {
        "weight": 100,
        "entity_type": "minecraft:pillager<minecraft:spawn_as_patrol_follower>"
    }
]

json

"minecraft:permute_type": [
    {
        "weight": 100,
        "entity_type": "minecraft:pillager<minecraft:spawn_as_patrol_follower>"
    }
]

json

"minecraft:permute_type": [
    {
        "weight": 100,
        "entity_type": "minecraft:pillager<minecraft:spawn_as_patrol_follower>"
    }
]

zombie

json

"minecraft:permute_type": [
    {
        "weight": 95
    },
    {
        "weight": 5,
        "entity_type": "minecraft:zombie_villager_v2"
    }
]

player_in_village_filter

Show

pillager_patrol

json

"minecraft:player_in_village_filter": {
    "distance": 48,
    "village_border_tolerance": 32
}

json

"minecraft:player_in_village_filter": {
    "distance": 48,
    "village_border_tolerance": 32
}

json

"minecraft:player_in_village_filter": {
    "distance": 48,
    "village_border_tolerance": 32
}

spawn_event

Show

stray

json

"minecraft:spawn_event": {
    "event": "change_to_skeleton"
}

json

"minecraft:spawn_event": {
    "event": "change_to_skeleton"
}

spawns_lava

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strider

json

"minecraft:spawns_lava": {}

Show

armadillo

json

"minecraft:spawns_on_block_filter": [
    {
        "name": "minecraft:grass_block"
    },
    {
        "name": "minecraft:red_sand"
    },
    {
        "name": "minecraft:coarse_dirt"
    },
    {
        "name": "minecraft:brown_terracotta"
    },
    {
        "name": "minecraft:hardened_clay"
    },
    {
        "name": "minecraft:orange_terracotta"
    },
    {
        "name": "minecraft:light_gray_terracotta"
    },
    {
        "name": "minecraft:red_terracotta"
    },
    {
        "name": "minecraft:white_terracotta"
    },
    {
        "name": "minecraft:yellow_terracotta"
    }
]

json

"minecraft:spawns_on_block_filter": [
    {
        "name": "minecraft:grass_block"
    },
    {
        "name": "minecraft:red_sand"
    },
    {
        "name": "minecraft:coarse_dirt"
    },
    {
        "name": "minecraft:brown_terracotta"
    },
    {
        "name": "minecraft:hardened_clay"
    },
    {
        "name": "minecraft:orange_terracotta"
    },
    {
        "name": "minecraft:light_gray_terracotta"
    },
    {
        "name": "minecraft:red_terracotta"
    },
    {
        "name": "minecraft:white_terracotta"
    },
    {
        "name": "minecraft:yellow_terracotta"
    }
]

json

"minecraft:spawns_on_block_filter": [
    {
        "name": "minecraft:grass_block"
    },
    {
        "name": "minecraft:red_sand"
    },
    {
        "name": "minecraft:coarse_dirt"
    },
    {
        "name": "minecraft:brown_terracotta"
    },
    {
        "name": "minecraft:hardened_clay"
    },
    {
        "name": "minecraft:orange_terracotta"
    },
    {
        "name": "minecraft:light_gray_terracotta"
    },
    {
        "name": "minecraft:red_terracotta"
    },
    {
        "name": "minecraft:white_terracotta"
    },
    {
        "name": "minecraft:yellow_terracotta"
    }
]

axolotl

json

"minecraft:spawns_on_block_filter": "minecraft:clay"

bat

json

"minecraft:spawns_on_block_filter": [
    "minecraft:stone",
    "minecraft:granite",
    "minecraft:diorite",
    "minecraft:andesite",
    "minecraft:tuff",
    "minecraft:deepslate"
]

chicken

json

"minecraft:spawns_on_block_filter": "minecraft:grass_block"

cow

json

"minecraft:spawns_on_block_filter": "minecraft:grass_block"

donkey

json

"minecraft:spawns_on_block_filter": "minecraft:grass_block"

spawns_on_block_prevented_filter

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hoglin

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

magma_cube

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

piglin

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

skeleton

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

zombie_pigman

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

json

"minecraft:spawns_on_block_prevented_filter": [
    "minecraft:nether_wart_block",
    "minecraft:shroomlight"
]

spawns_on_surface

Show

armadillo

json

"minecraft:spawns_on_surface": {}

json

"minecraft:spawns_on_surface": {}

json

"minecraft:spawns_on_surface": {}

bee

json

"minecraft:spawns_on_surface": {}

bogged

json

"minecraft:spawns_on_surface": {}

chicken

json

"minecraft:spawns_on_surface": {}

cod

json

"minecraft:spawns_on_surface": {}

cow

json

"minecraft:spawns_on_surface": {}

spawns_underground

Show

axolotl

json

"minecraft:spawns_underground": {}

bat

json

"minecraft:spawns_underground": {}

creeper

json

"minecraft:spawns_underground": {}

drowned

json

"minecraft:spawns_underground": {}

enderman

json

"minecraft:spawns_underground": {}

json

"minecraft:spawns_underground": {}

json

"minecraft:spawns_underground": {}

ghast

json

"minecraft:spawns_underground": {}

spawns_underwater

Show

axolotl

json

"minecraft:spawns_underwater": {}

cod

json

"minecraft:spawns_underwater": {}

dolphin

json

"minecraft:spawns_underwater": {}

drowned

json

"minecraft:spawns_underwater": {}

json

"minecraft:spawns_underwater": {}

json

"minecraft:spawns_underwater": {}

glow_squid

json

"minecraft:spawns_underwater": {}

guardian

json

"minecraft:spawns_underwater": {}

weight

Show

armadillo

json

"minecraft:weight": {
    "default": 10
}

json

"minecraft:weight": {
    "default": 6,
    "rarity": 3
}

json

"minecraft:weight": {
    "default": 6,
    "rarity": 2
}

axolotl

json

"minecraft:weight": {
    "default": 10
}

bat

json

"minecraft:weight": {
    "default": 10
}

bee

json

"minecraft:weight": {
    "default": 10
}

bogged

json

"minecraft:weight": {
    "default": 40
}

chicken

json

"minecraft:weight": {
    "default": 10
}

world_age_filter

Show

pillager_patrol

json

"minecraft:world_age_filter": {
    "min": 6000
}

json

"minecraft:world_age_filter": {
    "min": 6000
}

json

"minecraft:world_age_filter": {
    "min": 6000
}

Edit Vanilla Usage Spawn Rules on GitHub

Vanilla Usage Spawn Rules

biome_filter ​

brightness_filter ​

delay_filter ​

density_limit ​

difficulty_filter ​

disallow_spawns_in_bubble ​

distance_filter ​

height_filter ​

herd ​

mob_event_filter ​

permute_type ​

player_in_village_filter ​

spawn_event ​

spawns_lava ​

spawns_on_block_filter ​

spawns_on_block_prevented_filter ​

spawns_on_surface ​

spawns_underground ​

spawns_underwater ​

weight ​

world_age_filter ​

biome_filter

brightness_filter

delay_filter

density_limit

difficulty_filter

disallow_spawns_in_bubble

distance_filter

height_filter

herd

mob_event_filter

permute_type

player_in_village_filter

spawn_event

spawns_lava

spawns_on_block_filter

spawns_on_block_prevented_filter

spawns_on_surface

spawns_underground

spawns_underwater

weight

world_age_filter