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