Dupe Fixes / Illegal Stack Remover 2.0.6d

Provided fixes for several vanilla bugs that allow players to dupe on your server.

  1. dNiym
    Native Minecraft Version:
    Tested Minecraft Versions:
    • 1.8
    • 1.9
    • 1.10
    • 1.11
    • 1.12
    • 1.13
    • 1.14


    Protect your sever from over TWENTY FIVE glitches and dupes that have made it into final Spigot builds! This plugin supports all versions of Spigot from 1.8.8 to present. I try to keep it up to date with any new exploits that are found (from any version) So please feel free to contact me if you know of a vanilla game mechanic exploit that should be fixed!

    Got a question? need some help? Join our discord!

    New Wiki!
    This resource page was getting quite messy with all the new features that have been added to IllegalStack over the years, thus I have created a github page and a wiki for this plugin that is a comprehensive guide to every single protection and option in this plugin, along with a guide on how to use the in-game config editor! So please for more detailed information check out the:

    Recent Plugin Updates:

    *New for version 2.0.6a*

    1) Fixed a bug for real for real this time, that would prevent items in the groupstack list from being properly detected in all instances.

    New Feature:
    Prevents the no-rocket unlimited elytra boost glitch. This glitch is painfully easy to do and allows players to ascend to insane heights above the build limit,only limited by the number of elytra they can carry!


    Also added 2 new configurable messages to messages.yml for this exploit.
    Code (Text):

    GlideActivateMaxBuild - Prevented ~name~ from activating an elytra while above the max build height. @
    GlideAboveMaxBuild - Player ~name~ was using an elytra above the max build height, disabling glide. @

Recent Updates

  1. New Features & Bugfixes
  2. New Features & Bugfixes
  3. New Features & Bugfixes

Recent Reviews

  1. SlimeDog
    Version: 2.0.6b
    Dev continues to maintain high quality and response to user requests with every release. Excellent work.
  2. NotMyFault
    Version: 2.0.6a
    What a friendly developer and what an amazing plugin. Really fixes a lot of dupes and exploits efficiently. Highly recommended for every server!
  3. LachGameZ
    Version: 2.0.6
    Brilliant developer. plugin is feature packed and works brilliantly. dev releases updates and content frequently. works out of the box
  4. jirachi_toast
    Version: 2.0.6
    An amazing plugin for anarchy servers, removes 32767 enchanted weapons and overstacked totems, but I can't seem to find out how to use the "RemoveItemsMatchingName" feature as illegal bedrock still exists.
    1. dNiym
      Author's Response
      See this wiki page for detailed information:

      1) Enable the RemoveItemsMatchingName feature - /istack toggle RemoveItemsMatchingName
      2) Add the item's name to the list of names to be removed - /istack value add ItemNamesToRemove (display name)
      3) You can probably leave strict mode OFF unless you have named bedrock that should remain with a similar name.

      Alternatively if you want to remove ALL bedrock from player inventories regardless of the name use: /istack value add RemoveItemTypes BEDROCK
  5. Leomelonseeds
    Version: 2.0.5d
    A must for any type of server. The author is very active and responds very quick to feature requests and questions. I'd fully recommend downloading this plugin.
  6. MerlinK11
    Version: 2.0.5c
    Nice thats it's awesome now enchantments over 10 :D
    thx for your great work

  7. josecuervo2016
    Version: 2.0.5b
    Thank you for helping with errors and serious failures that should be solved by the creators of spigot. and save us from people who only do evil
  8. LovesAsuna
    Version: 2.0.5a
    Can you add prohibit RNG enchant?
    A application developed by earchcomputer can make player enchant accuratly
    1. dNiym
      Author's Response
      Think I have a fix for this but I would like someone that has players abusing this exploit or knows how to really do it well to test it! If anyone reads this and knows someone willing to test a fix for the RNG Enchant Exploit please message me!
  9. ZeroDayDaemon
    Version: 2.0.5
    Cannot Express How Useful This Plugin Is, A Must Have For Any Type Or Genre Of Server
  10. grizzlymc
    Version: 2.0.4c
    1. dNiym
      Author's Response
      I have been unable to reproduce the dupe in the first link using recent versions of spigot and paper 1.14.4 and i've followed a couple videos trying, it could be that I just have bad timing but I'll gladly write a protection for this setup, as I can see no practical use for a constant loop in this setup.

      As for the book dupe, there's a protection for this in illegalstack which prevents these books from ever getting created, failing that (due to having to have a chinese or other unicode charset) it also has an option to completely disable player book creation, https://github.com/dniym/IllegalStack/wiki/RemoveBooksNotMatchingCharset, likewise spigot/paper have patched this in newer versions by increasing the chunk save size.