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AltCore

Сompletely reimagines the inventory and container interfaces, making them more flexible and visually expressive without using texture packs
by Altarmo
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222 downloads
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Updated Jul 6, 2026
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API and Library Armor, Tools, and Weapons Cosmetic Server Utility Utility & QoL

AltCore adds a custom player inventory screen, accessory slots, and backpacks whose slots are added to the player inventory. In addition, the mod overhauls many vanilla screens into a unified Universal GUI system with support for style presets, configurable spacing, sizes, positions, and the overall look of the interface.

What the mod already has:

  • A custom inventory that fully replaces the default one;
  • Full support for all standard Minecraft screens;
  • A new player inventory screen;
  • An accessory system and additional slots;
  • Backpacks that expand the inventory;
  • Built-in style presets and the ability to create your own;
  • Flexible interface customization, including moving windows within each screen;
  • Overhaul of many container and utility screens;
  • A simplified /gm 0,1,2 gamemode command.




AltCore is currently in v0.3 Alpha.

What is planned for future versions:

  • Fixing effect display on the custom inventory screen;
  • Configurable default panel positions on screens;
  • Compatibility with JEI, NEI, and others;
  • Automatic support for other modded containers;
  • Further development of the accessory system;
  • Further development of the backpack system with auto-pickup, placement in the world, and upgrades;
  • More customization options, including custom textures in any screen, gradients, and animated colors;
  • Support for changing the player HUD;
  • Tactical-style layout presets similar to TaCZ and others;
  • The ability to add any item as an accessory or backpack with custom properties via config;
  • Implementation of the /inv "name" command for server administrators.
AltCore-v0.3-Alpha-1.20.1
MC Client, 1.20.1, Forge, Server
Release 2026-07-03 Get

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