ChunkHeat

Broad Spectrum Monster Farm Limiter.

Features

• Mob spawning control.
• Mob drops control.
• Automatically reset for restriction.
• Custom Weights.

Working principle

ChunkHeat is a powerful tool for managing mob spawns in your Minecraft world. It focuses on controlling the number of mobs in specific chunks to maintain a balanced and enjoyable gameplay experience. The plugin offers various features and extensive configuration options to customize how mobs spawn, affect the in-game environment, and provides a way to limit excessive mobfarms while still keeping the vanilla feeling during normal gameplay.

It does so by assigning a "heat" value to every chunk. This score gets increased whenever a mob spawns or dies, in both the chunk where it spawned and where it died. If this score reaches a configurable threshold, all mob spawning in that chunk is suspended until the score is below the threshold again.
Additionally you can also choose to restrict item/xp drops when the score exceeds the limit.

Reset Timer

The Timer has two different operating settings

• reset-mode: 0 - Heat score will be reset every reset-timer minutes
• reset-mode: 1 - Heat score will only reset if the chunk has had no activity in the last reset-timer minutes

Commands

• /chunkheat - Shows the heat values of all Chunks
• /chunkheat get - Shows the heat value of the Chunk you're currently standing in
• /chunkheat reload - Reload the Plugin's config

Configuration

config-version: 1
# The world name that won't count
whitelist-worlds:
  - world_ignored
# Reset Time: TimeUnit: minute
reset-time: 60
# Reset Mode: 0 for reset every <reset-time> minutes
#             1 for reset every <reset-time> minutes but only that chunk no any activity in <reset-time> minutes
reset-mode: 0
# Reset tolerance level: Maximum allowable increase in heat score to prevent reset
reset-tolerance: 10
# The threshold that will restrict the mob spawning and items/exp dropping.
limit: 1000

# Prevent mobs from dropping XP when above heat limit
prevent-drop-xp: false
# Prevent mobs from dropping Items when above heat limit
prevent-drop-items: false

# Choose if the Heat score should only be increased on kill or also on spawn
increase-heat-on-spawn: true

# Amount of online players required for heat to increase
# Set to 0 or -1 to ignore
min-players-to-increase-heat: 2

whitelist-spawnreason:
  - BEEHIVE
  - BREEDING
  - BUILD_IRONGOLEM
  - BUILD_SNOWMAN
  - BUILD_WITHER
  - COMMAND
  - SPAWNER
  - SPAWNER_EGG
  - EXPLOSION
  - CURED
  - SILVERFISH_BLOCK
  - SHEARED
  - SHOULDER_ENTITY
entity-weight:
  ELDER_GUARDIAN: 1
  WITHER_SKELETON: 5
  STRAY: 3
  HUSK: 3
  ZOMBIE_VILLAGER: 3
  #etc, add any mob you want

Demo Video

Pretty old video, but still can show the effect about this plugin.