Mob clearing is an automatic cleanup. On a repeating timer the server removes mobs of a fixed list of types from loaded chunks. It exists to keep the servers fast, and it is why spawned mobs sometimes disappear.
What is cleared#
The list of cleared types is the same on the hub, Prison, Lifesteal and Survival: Zombie, Skeleton, Creeper, Bat, Enderman, Spider, Squid, Dolphin, Glow Squid, Drowned, Axolotl, Blaze, Magma Cube, Nautilus, Vindicator, Pillager, Evoker, Ravager, Witch, Vex and Illusioner. Skyblock clears a shorter list: Zombie, Skeleton, Bat, Enderman, Spider, Squid and Dolphin.
Some mobs are never cleared: mobs with a custom name tag, leashed, tamed or ridden mobs, mobs released from a bucket, and mobs that would not despawn on their own. Dungeon worlds are exempt.
How often#
| Gamemode | Interval |
|---|---|
| Hub | 10 minutes |
| Skyblock | 1 hour |
| Prison | 10 minutes |
| Lifesteal | 10 minutes |
| Survival | 5 minutes |
No chat warning is sent before a clear.
Tips#
- Put a name tag on (or leash) any mob of a cleared type that you want to keep, for example a dolphin.