Multi-Hotbar Core 1.12.2/1.11.2 – Library for rolandoislas’s Mods

Author: EvgenBro
multi hotbar core minecraft mod

Multi-Hotbar Core 1.12.2/1.11.2 is a Minecraft Forge core mod that increases the player’s hotbar size to 36 items.


  • Changes the integer value 9 to 36 via bytecode manipulation in specific classes/methods with the end goal of increasing the hotbar size from the perspective of the game code.
  • Without this modification Minecraft will not accept a client’s request to set the currently held item to a value other than 0-8 (the first 9 slots on the hotbar). This allows for any item in the standard inventory to be set as the current item and thus allows for mods that increase the hotbar size visually on the client.

How to install:

  1. Make sure you have already installed Minecraft Forge.
  2. Locate the minecraft application folder.
    • On windows open Run from the start menu, type %appdata% and click Run.
    • On mac open finder, hold down ALT and click Go then Library in the top menu bar. Open the folder Application Support and look for Minecraft.
  3. Place the mod you have just downloaded (.jar file) into the Mods folder.
  4. When you launch Minecraft and click the mods button you should now see the mod is installed.
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