NoEndermanGrief

NoEndermanGrief is a lightweight Paper/Spigot plugin that completely disables enderman block griefing while keeping all other mob behavior vanilla.

Endermen can no longer pick up or place blocks, but creepers still explode, villagers still farm, and the mobGriefing gamerule remains under your control.

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Features

• Prevents only endermen from changing blocks (both pickup and placement).
• Does not modify the global mobGriefing gamerule.
• Per-world enable/disable via config.yml.
• Optional console logging with timestamps and coordinates whenever an enderman block change is cancelled.
• Minimal surface area: one admin-only reload command, no changes for regular players.

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Requirements

• Server: Paper or Spigot (Paper recommended)
• Minecraft: 1.21+
• Java: 21

This plugin is developed against the Paper 1.21 API with Mojang mappings.

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Configuration

plugins/NoEndermanGrief/config.yml:

# If a world is not listed under "worlds", this value decides
# whether the plugin is enabled there by default.
default-enabled: true

# Per-world overrides.
# Add world names and set them to true/false as needed.
# Example:
# worlds:
#   world: true
#   world_nether: false
#   world_the_end: true
worlds: {}

logging:
  # If true, log whenever the plugin cancels an enderman block change.
  enabled: false

  # If true, include a timestamp inside the message itself
  # (on top of the normal server log timestamp).
  include-timestamp: true

Per-world control

• If a world is not listed under worlds, default-enabled determines whether the plugin is active there.
• If a world is listed under worlds, that value overrides default-enabled:

worlds:
  world: true
  world_nether: false
  world_the_end: true

In this example, the plugin is:

• Enabled in world and world_the_end.
• Disabled in world_nether.

Logging

• logging.enabled: true – log a line each time an enderman block change is cancelled.
• logging.include-timestamp: true – include an ISO-8601 timestamp in the log message.

Example log entry:

[NoEndermanGrief] [EndermanBlocked] 2025-01-01T12:34:56 - Cancelled enderman block change in world 'world' at (10, 64, -30)

Commands

Reloads config.yml from disk (without restarting the world / server).

• /negreload

Permission

Allows use of /negreload.

• noendermangrief.reload
  • Default: op

Building from source

This project uses Maven.

git clone https://github.com/<your-username>/NoEndermanGrief.git
cd NoEndermanGrief
mvn package

The compiled plugin JAR will be located in the target/ directory:

target/no-enderman-grief-1.0.0-SNAPSHOT.jar

Copy this JAR into your server’s plugins/ folder.

How it works (technical overview)

• The plugin registers a listener for EntityChangeBlockEvent.
• If the event’s entity type is ENDERMAN and the plugin is enabled in that world:
  • The event is cancelled so the block change does not occur.
  • If logging is enabled, a timestamped message with world and coordinates is written to the console.
• No other entity types are modified, so creepers, villagers, and other mobs behave as in vanilla.

This makes the plugin safe to drop into existing survival worlds where you want to preserve terrain from enderman griefing without affecting any other mechanics.