🐾 MobStacker — Boost Your Server TPS Instantly

MobStacker is a performance plugin designed for those who want to run mob farms without destroying their server TPS. It stacks nearby mobs of the same type into a single entity, dramatically reducing lag without requiring complex setup.

📤 Installation Guide This plugin is compatible from version 1.21 to 1.21.x (Paper only).

Download the latest version of the plugin and upload it to your server's plugins/ folder. Once uploaded, restart the server for the changes to take effect. Edit plugins/MobStacker/config.yml to customize the plugin to your needs. Use /ms reload to apply config changes without restarting.

⚠️ Requires Paper 1.21+ and Java 21+. Spigot is not supported.

✅ Features

Smart /ms stackall command that forces stacking of all loaded mobs instantly. Per-entity configuration — set max stack size, radius, AI toggle and drop multiplier per mob type. Per-world configuration — different stack limits for each world. AI disabling for stacked mobs to save CPU cycles and improve TPS dramatically. Drop multiplication — killing a stack rewards full drops for every mob in it. Split on death — when the stack head dies, the rest of the stack survives as a new entity. Fully customizable nametag format with color codes and placeholders. Stack conditions — configure whether to stack babies, tamed animals, breeding mobs, leashed mobs, etc. Spawner-only mode — stack only mobs that come from spawners. /ms toggle to enable or disable the plugin live without restarting. bStats integration for anonymous usage statistics. config.yml file to customize all functions to the maximum, fully documented with comments.

🧑‍💼 Permissions

mobstacker.admin — Access to all MobStacker commands (default: OP) mobstacker.bypass — Tamed mobs of this player won't be stacked mobstacker.seeinfo — View stack info when looking at a mob

⌨️ Commands

/ms reload — Reload the configuration /ms info — Show active stack statistics /ms stackall — Force stack all loaded mobs immediately /ms killall <type> — Kill all stacks of a specific mob type /ms check — Inspect the mob you are looking at /ms toggle — Enable or disable the plugin on the fly /ms stats — Stats breakdown by mob type /ms clearall — Remove all active stacks

📊 Performance Impact

ScenarioWithout MobStackerWith MobStacker500 zombies in a farm500 entities1 entity (stack of 500)Server TPS~8 TPS~20 TPSAI calculations500x per tick1x per tick

🔧 Example Config (per mob)

ZOMBIE:
  max-stack-size: 256
  stack-radius: 12
  disable-ai: true
  multiply-drops: true

Made with ❤️ for server owners who love mob farms but hate lag.