Ultimate Inventory System

Build RPG equipment, survival crafting, shooter loot, or local co-op inventories around shared item definitions. Ultimate Inventory System connects collection, equipment, trading, crafting, UI, and saving. Configure the core setup in Unity editors, then extend it for your game.

🎮 Demo | 📚 Documentation | 🎥 Videos | 💬 Discussions | 🌐 Discord

Why Choose Ultimate Inventory System?

🛠️ Built for Flexibility

Create items, categories, currencies, and crafting recipes using an intuitive and powerful editor. Customize every aspect of the inventory flow—from data to visuals.

🎨 UI That Fits Your Game

Use the built-in UI system or customize it to match your game's style and input method (mouse, controller, or touch).

🔁 Complete Inventory Features

Supports everything you’d expect from a modern inventory system: crafting, upgrades, shops, item actions, split screen, hotbars, and more.

🌍 Ready for Global Releases

Includes full localization support so you can easily reach players around the world.

✨Core Features

• Item Management
• Customizable Inventory UI
• Crafting System
• Item Upgrades
• Shop System
• Multiple Currencies
• Save & Load System
• Localization
• Split Screen & Controller Support
• Hotbars & Item Actions
• Item Shapes (Tetris-style)
• Data Import/Export
• Mobile Ready
• Supports 2D and 3D

🤝Integrations

• Behavior Designer
• Behavior Designer Pro
• Dialogue System for Unity
• Control Freak
• Easy Touch
• FMOD
• InControl
• Input System
• Master Audio
• Playmaker
• Quest Machine
• Rewired
• Save System for Opsive Character Controllers
• State Designer
• Ultimate Character Controller (all variants)

🧑‍🤝‍🧑Join the Community

Opsive’s inventory has powered thousands of games across every genre. With continuous updates, premium support, and a passionate developer community, you're building on a system that’s proven, polished, and production-ready.