Multiplayer Physical Backpack Inventory System is a fully physical, diegetic 3D inventory system for Unreal Engine that runs without a HUD, features full physics, realistic looting, and multiplayer support.

Overview Video

Key Features:

🎒 Real 3D Inventory — a real physical space

• Instead of being bound to an invisible grid or slots, items lie freely in the container, interacting naturally with each other.

🧩 Gameplay Space Management

• The size, shape, and mass of items matter:

• the player must physically place items so they don't interfere with each other.

• The inventory becomes a true minigame, not a list.

🧲 Stability System

• Items don't fall through walls or fly off when walking.

🌐 Multiplayer-Ready

• The system works in multiplayer out of the box:

• Full physics synchronization between server and clients

• Items move smoothly on both sides

• The system has been tested under high ping conditions

💼 Isolation & Easy Integration

• The asset is delivered as an isolated, pluggable Actor that can be embedded into any project with a character.

• No professional skills required

• Full documentation included

• Several ready-made presets and examples

• Clean, fully commented code