# \ud83d\udc3e ****MobStacker** \u2014 Boost Your Server TPS Instantly**
\nMobStacker 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.<\/p>\n
\ud83d\udce4 **Installation Guide**
\nThis plugin is compatible from version 1.21 to 1.21.x (Paper only).<\/p>\n
Download the latest version of the plugin and upload it to your server’s plugins\/ folder.
\nOnce uploaded, restart the server for the changes to take effect.
\nEdit plugins\/MobStacker\/config.yml to customize the plugin to your needs.
\nUse \/ms reload to apply config changes without restarting.<\/p>\n
\u26a0\ufe0f Requires Paper 1.21+ and Java 21+. Spigot is not supported.<\/p>\n
## \u2705 **Features**<\/p>\n
Smart \/ms stackall command that forces stacking of all loaded mobs instantly.
\nPer-entity configuration \u2014 set max stack size, radius, AI toggle and drop multiplier per mob type.
\nPer-world configuration \u2014 different stack limits for each world.
\nAI disabling for stacked mobs to save CPU cycles and improve TPS dramatically.
\nDrop multiplication \u2014 killing a stack rewards full drops for every mob in it.
\nSplit on death \u2014 when the stack head dies, the rest of the stack survives as a new entity.
\nFully customizable nametag format with color codes and placeholders.
\nStack conditions \u2014 configure whether to stack babies, tamed animals, breeding mobs, leashed mobs, etc.
\nSpawner-only mode \u2014 stack only mobs that come from spawners.
\n\/ms toggle to enable or disable the plugin live without restarting.
\nbStats integration for anonymous usage statistics.
\nconfig.yml file to customize all functions to the maximum, fully documented with comments.<\/p>\n
<\/p>\n
\ud83e\uddd1\u200d\ud83d\udcbc **Permissions**<\/p>\n
mobstacker.admin \u2014 Access to all MobStacker commands (default: OP)
\nmobstacker.bypass \u2014 Tamed mobs of this player won’t be stacked
\nmobstacker.seeinfo \u2014 View stack info when looking at a mob<\/p>\n
\u2328\ufe0f **Commands**<\/p>\n
\/ms reload \u2014 Reload the configuration ### \ud83d\udcca **Performance Impact** \ud83d\udd27 Example Config (per mob)<\/p>\n “` Made with \u2764\ufe0f for server owners who love mob farms but hate lag.<\/p>\n","protected":false},"excerpt":{"rendered":" MobStacker is a lightweight performance plugin that stacks nearby mobs into a single entity, drastically reducing server lag caused by mob farms.<\/p>\n","protected":false},"featured_media":103956,"template":"","meta":{"_minecraft_slug":"mobs-stacker","_minecraft_project_id":"PxJRuaM8","_minecraft_author":"_diuruijj_","_minecraft_license":"MIT","_minecraft_downloads":137,"_minecraft_follows":1,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"mobs-stacker.zip","_minecraft_size_bytes":60428,"_minecraft_version_count":1,"_minecraft_updated_at":"2026-05-15T18:49:51.195584Z","_minecraft_date_created":"2026-03-04T21:32:29.943583Z","_minecraft_date_modified":"2026-02-28T18:56:15.902128Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/mobs-stacker","_minecraft_icon_attachment_id":103956,"_minecraft_imported_at":"2026-06-05T23:34:35+00:00","_minecraft_import_hash":"dbcb17e630f95566c57df8ab2540f630","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[125,127,128],"mod_loader":[131,132,133],"minecraft_version":[62,37,40,41,73,74,38,78,79,80,81,82],"class_list":["post-103955","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-folia","mod_category-paper","mod_category-purpur","mod_loader-folia","mod_loader-paper","mod_loader-purpur","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9"],"yoast_head":"\n
\n\/ms info \u2014 Show active stack statistics
\n\/ms stackall \u2014 Force stack all loaded mobs immediately
\n\/ms killall
\n\/ms check \u2014 Inspect the mob you are looking at
\n\/ms toggle \u2014 Enable or disable the plugin on the fly
\n\/ms stats \u2014 Stats breakdown by mob type
\n\/ms clearall \u2014 Remove all active stacks<\/p>\n
\nScenarioWithout MobStackerWith MobStacker500 zombies in a farm500 entities1 entity (stack of 500)Server TPS~8 TPS~20 TPSAI calculations500x per tick1x per tick<\/p>\n
\nZOMBIE:
\n max-stack-size: 256
\n stack-radius: 12
\n disable-ai: true
\n multiply-drops: true
\n“`<\/p>\n