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): 30 within a 10 block radius
Xporb(Experience Orb): 50 within a 3 block radius
Items(Item): 500 within a 2 block radius
Hanging(Leash Knot, Glow Item Frame, Painting, Item Frame): 800 within a 2 block radius
Projectiles(Spectral Arrow, Fireball, Experience Bottle, Snowball, Fishing Bobber, Small Fireball, Wind Charge, Ender Pearl, Breeze Wind Charge, Egg, Arrow, Trident, Shulker Bullet, Dragon Fireball, Potion, Wither Skull, Firework Rocket, Llama Spit): 35 within a 5 block radius
Bosses(Wither, Warden): 5 within a 15 block radius
Laggyvillagers(Pillager, Villager, Wandering Trader): 18 within a 5 block radius
Farmable(Trader Llama, Hoglin, Skeleton Horse, Polar Bear, Goat, Cow, Wolf, Axolotl, Sniffer, Frog, Magma Cube, Fox, Rabbit, Snow Golem, Ocelot, Bee, Iron Golem, Mooshroom, Camel, Zombie Horse, Panda, Armadillo, Parrot, Turtle, Slime, Sheep, Donkey, Horse, Chicken, Cat, Pig, Shulker, Mule, Llama, Strider): 15 within a 5 block radius
Monsters(Endermite, Ravager, Piglin Brute, Blaze, Drowned, Husk, Zombie, Piglin, Zoglin, Breeze, Silverfish, Evoker, Creeper, Wither Skeleton, Zombie Villager, Bogged, Stray, Illusioner, Giant, Vex, Witch, Enderman, Creaking, Guardian, Skeleton, Zombified Piglin, Elder Guardian, Vindicator, Spider, Cave Spider): 15 within a 5 block radius
Watermobs(Glow Squid, Salmon, Tropical Fish, Tadpole, Squid, Pufferfish, Cod, Dolphin): 10 within a 5 block radius
Mobs(Ghast, Phantom, Bat, Allay): 30 within a 5 block radius
Fallingblock(Falling Block): 30 within a 5 block radius
Explosive(Tnt, End Crystal): 30 within a 5 block radius
Vehicles(Spawner Minecart, Spruce Chest Boat, Acacia Chest Boat, Pale Oak Boat, Tnt Minecart, Bamboo Chest Raft, Dark Oak Boat, Acacia Boat, Command Block Minecart, Oak Boat, Jungle Chest Boat, Hopper Minecart, Birch Chest Boat, Furnace Minecart, Minecart, Chest Minecart, Dark Oak Chest Boat, Jungle Boat, Mangrove Boat, Bamboo Raft, Mangrove Chest Boat, Oak Chest Boat, Spruce Boat, Cherry Boat, Birch Boat, Pale Oak Chest Boat, Cherry Chest Boat): 20 within a 5 block radius
Uncategorized(Eye Of Ender, Evoker Fangs, Lightning Bolt, Text Display, Item Display, Ominous Item Spawner, Marker, Area Effect Cloud, Block Display, Interaction): 150 within a 7 block radius