Server mechanics

Mob, farm & block limits

How Lantern keeps large farms running smoothly, including mob, breeding, villager, and per-chunk block limits.

Lantern automatically optimizes large mob farms to keep the server running smoothly. These changes reduce load without deleting your mobs during normal gameplay.

How to avoid farm optimizations

  • Spread large farms across multiple pens instead of keeping everything in one area.
  • Keep fewer than 15 animals within a 5-block radius.
  • Keep breeding pens small, then move animals into separate enclosures afterward.
  • Named, tamed, leashed, mounted, and actively breeding mobs are excluded from optimization.

Current mob limits

Animals · all types combined
When 15 or more animals are within a 5-block radius, their AI is temporarily disabled and collisions are turned off. Interacting with them restores their normal behavior.
Breeding animals · same type
Breeding is disabled when 30 of the same animal are within a 5-block radius.
Villagers
Breeding is disabled when 20 villagers are within a 10-block radius.

Block limits per chunk

Block typeLimitWhat counts
Hoppers64Hopper blocks in one chunk
Beds64Bed blocks in one chunk
Tile entities256Chests, barrels, furnaces, hoppers, shulker boxes, beacons, and other storage or functional blocks