AI NPC Dialogue System + World Knowledge for Unity | MetaMix3D

Asset description

MetaMix3D AI NPC Dialogue System + World Knowledge for Unity helps developers create interactive NPCs that players can actually talk to. This package is designed for developers who want a practical NPC dialogue workflow without building everything from scratch. It includes a plug-and-play NPC setup, dialogue UI, JSON-based offline dialogue support, and world knowledge integration for smarter conversations. You can drag and drop NPC prefabs into your Unity scene, connect dialogue data, and start testing NPC conversations quickly. Check Documentation Setup Guides: Wiki Tutorial Check Video Tutorial in Details: Video Tutorial What this package includes AI NPC dialogue system World knowledge system JSON-based offline dialogue support Plug-and-play Unity setup NPC prefab workflow Dialogue UI / chat component Example dialogue files Sample NPC prefabs Demo scene Documentation Main features: Plug-and-play setup Add an NPC prefab to your scene, assign dialogue data, and test conversations inside Unity. JSON-based offline dialogue Use local JSON files to define dialogue content and response flow for offline mode. World knowledge support NPCs can answer questions related to game locations, lore, and environment-specific knowledge. Unity integration Simple inspector workflow for assigning NPC dialogue, chat UI, and interaction settings. Flexible workflow Supports both: Offline local dialogue mode Extended AI-based workflow when connected to your external backend --Example use cases-- This package is suitable for: RPG games Adventure games Story-driven games Open world projects Fantasy NPC systems Sci-fi NPC systems Dialogue-driven gameplay Why use this package? Instead of manually building NPC conversation logic, chat UI, prefab setup, JSON dialogue loading, and game-side interaction handling, this package gives you a working starting point that can be customized for your project. It is made for developers who want faster implementation and a clearer workflow for interactive NPCs. (Optional) AI Cloud Mode This package includes an offline dialogue system using JSON files that works entirely inside Unity without any internet connection. For developers who want more advanced AI-powered NPC conversations, the system can optionally connect to an external AI backend. Online AI features may require: API key configuration Internet connection Subscription or usage-based billing depending on the external service used Offline mode works independently and does not require any external services. More information about the cloud service can be found here: Wiki/Cloud Important setup notes: • After importing the package into a fresh project, TextMesh Pro Essential Resources may need to be imported from Window > TextMeshPro > Import TMP Essential Resources. • The included demo scene may use Unity Starter Assets / starter kit style character content for demonstration purposes only. Engine Compatibility Unity 2021.3 LTS or newer Render Pipeline Compatibility Compatible with Built-in, URP, and HDRP depending on project setup and included demo assets Core Systems Included NPC prefab system NPC chat component Dialogue UI JSON dialogue loader World knowledge integration Sample setup workflow Example project scene Dialogue System JSON-based offline dialogue files Editable dialogue structure Supports local dialogue setup inside Unity workflow NPC Setup Drag-and-drop NPC prefab workflow Inspector-based component configuration Chat component assignment Dialogue file assignment Sample Content Example NPC prefabs Example JSON dialogue files Example scene Documentation Scripts C# scripts included Unity inspector workflow supported Runtime dialogue interaction logic included Documentation Included Quick start guide Setup guide Example usage documentation Target Users Indie developers Prototype teams Technical designers Developers building interactive NPC experiences Built and tested in Unity 6.3 LTS with URP. Configured for URP and uses the included MetaMix3D PC Render Pipeline Asset. The core NPC dialogue system, offline JSON workflow. After import into a fresh project, TextMesh Pro Essential Resources may need to be imported. The included demo scene may use Unity Starter Assets / starter kit character content for demonstration purposes only.