This is a complete, production-ready backpack and inventory system built entirely in blueprints for Unreal Engine 5.6 and later. Designed for survival and open-world games, it includes a player personal backpack, interactable world storage containers, and a full drag-and-drop inventory UI. No C++ knowledge is required to integrate, extend, or customize.

Included Features:

- Player personal backpack inventory with intuitive drag-and-drop UI

- World storage containers that players can open and interact with

- Drag and drop item movement between player inventory and containers

- Item stacking with automatic stack merging

- Interaction prompt UI when looking at interactable objects

- Inventory sorting button to organize items automatically

Technical Details:

- Built entirely in blueprints — no C++ source code required

- 11 Blueprint Classes

- 3 Blueprint Interfaces

- 6 Widget Blueprints (UMG)

- Modular architecture for easy extension and customization

- Keyboard and mouse input

- Windows platform

- Some static meshes use Nanite geometry

Asset Count:

- Meshes: 81

- Textures: 18

- Materials: 21

Compatibility and Requirements:

- Unreal Engine 5.6, 5.7, and 5.8

- No external marketplace dependencies or third-party plugins required

- For more information about Nanite, refer to the official Epic documentation: [https://docs.unrealengine.com/5.6/en-US/nanite-technology-in-unreal-engine/](https://docs.unrealengine.com/5.6/en-US/nanite-technology-in-unreal-engine/)