Building an Inventory System in Unreal Engine 5: Data Assets, Components & Multiplayer

Welcome to a new episode of The Game Dev Blueprint Podcast!

In this episode, we dive into one of the most common systems found in games: the Inventory System.

We explain how beginners can build a modular inventory in Unreal Engine 5, starting with drag-and-drop UI and gradually moving into more scalable systems using Actor Components, Data Assets, Soft References, multiplayer replication, and Save/Load systems.

You'll learn:

• How to create a basic inventory system in Unreal Engine 5
• Setting up drag-and-drop inventory slots with Widget Blueprints
• Building modular inventory logic using Actor Components
• Why component-based composition can be more flexible than traditional inheritance
• The "secret power" of Data Assets for managing items
• Organizing item data to make designer workflows faster
• Using Soft Object Pointers/Soft References to reduce unnecessary memory usage
• Creating modular item systems that can scale with your game
• Connecting inventory systems with the Gameplay Ability System
• Saving inventory and item data across multiple game sessions
• Replicating inventory state correctly in multiplayer
• Understanding server-authoritative inventory logic
• Preventing inventory desync and multiplayer item duplication issues
• Practical approaches for building an inventory that can grow from a prototype into a larger production system

Whether you're creating an RPG, survival game, multiplayer experience, or your first Unreal Engine project, this episode provides a practical foundation for designing an inventory system that is modular, scalable, and multiplayer-ready.