Mob Limits

Limits on Large Groups of Mobs.

To optimize server performance, large clusters of mobs are regulated.
Entities are not limited per chunk but are limited by their group (see below).
Groups of mobs that exceed the limit are periodically identified and culled,
exempting those with special characteristics like being a custom mob or tamed.
When a mob is removed, you will see a smoke effect.

For example, if the limit is 10 mobs within 5 blocks, it will group all mobs in the same group
that are less than 5 blocks from each-other into one large group and remove the excess mobs.

If you wanted to have more than 10 mobs in this example, you need to have at least 5 blocks
between your groups to prevent them being counted as one group.

Mob limits:
Armorstands (Armor Stand): 50 within a 10 block radius
Xporb (Experience Orb): 50 within a 3 block radius
Items (Item): 1000 within a 2 block radius
Hanging (Leash Knot, Glow Item Frame, Item Frame, Painting): 2000 within a 2 block radius
Projectiles (Dragon Fireball, Firework Rocket, Wind Charge, Llama Spit, Shulker Bullet, Arrow, Lingering Potion, Experience Bottle, Splash Potion, Spectral Arrow, Breeze Wind Charge, Ender Pearl, Egg, Fishing Bobber, Snowball, Small Fireball, Fireball, Trident, Wither Skull): 50 within a 5 block radius
Bosses (Warden, Wither): 10 within a 15 block radius
Laggyvillagers (Villager, Pillager, Wandering Trader): 30 within a 5 block radius
Farmable (Happy Ghast, Llama, Mooshroom, Nautilus, Cat, Fox, Bee, Camel Husk, Chicken, Strider, Zombie Nautilus, Zombie Horse, Mule, Axolotl, Donkey, Ocelot, Turtle, Cow, Panda, Shulker, Goat, Trader Llama, Horse, Pig, Skeleton Horse, Frog, Sheep, Rabbit, Iron Golem, Wolf, Armadillo, Parrot, Camel, Copper Golem, Snow Golem, Polar Bear, Hoglin, Sniffer, Slime): 30 within a 5 block radius
Monsters (Husk, Cave Spider, Stray, Zombie Villager, Silverfish, Creeper, Creaking, Giant, Drowned, Breeze, Vindicator, Zombie, Evoker, Endermite, Ravager, Witch, Zombified Piglin, Piglin Brute, Wither Skeleton, Bogged, Enderman, Skeleton, Zoglin, Parched, Guardian, Vex, Spider, Illusioner, Elder Guardian, Blaze, Piglin): 30 within a 5 block radius
Watermobs (Tropical Fish, Dolphin, Cod, Pufferfish, Salmon, Glow Squid, Squid, Tadpole): 30 within a 5 block radius
Mobs (Phantom, Allay, Magma Cube, Ghast, Bat, Sulfur Cube): 50 within a 5 block radius
Fallingblock (Falling Block): 50 within a 5 block radius
Explosive (Tnt, End Crystal): 50 within a 5 block radius
Vehicles (Jungle Boat, Mangrove Chest Boat, Minecart, Pale Oak Chest Boat, Furnace Minecart, Birch Boat, Cherry Chest Boat, Acacia Chest Boat, Oak Chest Boat, Bamboo Raft, Chest Minecart, Dark Oak Boat, Dark Oak Chest Boat, Bamboo Chest Raft, Jungle Chest Boat, Cherry Boat, Spawner Minecart, Birch Chest Boat, Hopper Minecart, Spruce Boat, Tnt Minecart, Pale Oak Boat, Acacia Boat, Command Block Minecart, Oak Boat, Spruce Chest Boat, Mangrove Boat): 80 within a 8 block radius
Uncategorized (Ominous Item Spawner, Evoker Fangs, Mannequin, Item Display, Marker, Block Display, Text Display, Eye Of Ender, Interaction, Lightning Bolt, Area Effect Cloud): 150 within a 7 block radius