GladeCore is a comprehensive system for integrating advanced, AI-driven interactions directly into your Unreal Engine projects. It lets players hold dynamic, unscripted conversations with NPCs through text or voice. NPCs respond in real time, with personalities, knowledge, and voices defined entirely by easy-to-use Data Assets configured in engine, with no external services required.

Core Features:

• LLM-Powered Dialogue: Local LLM inference to generate dynamic NPC responses

• Zero per Interaction Cost and Low Latency: Runs fully offline - infinitely scalable with no per-use fees

• Speech-to-Text (STT): Players can talk naturally to NPCs via microphone

• Text-to-Speech (TTS): NPCs can respond aloud using ElevenLabs API or local Piper TTS

• Data-Driven Personalities: Define NPC backstories, traits, and voices with Data Assets - no code changes required

Pro Features:

• RAG: Store and retrieve knowledge to keep responses accurate, consistent, and grounded.

• Actions: Let NPCs trigger in-game behaviors and animations from natural dialogue, so conversations can drive actual gameplay

• Strict Grounding: Keep NPCs on-corpus with refusal modes and citations

• Grammar Presets: Control output format for dialogue, JSON, emotion tags, yes/no answers, and more

• Output Retrieval: Deterministic Q&A shortcuts that skip the LLM entirely

• Custom Models: Fine-tune and integrate custom models of different sizes, emotions, and tradeoffs for even more personalization

Why use GladeCore?

GladeCore is the only AI NPC solution built by game developers, for game developers.

While building our own AI RPG, we ran into the high costs, latency, and complexity of cloud-based AI tools. The result was GladeCore: a lightweight, on-device system designed from the ground up to meet the real production needs of studios.

For the next generation of AI-enabled games, scalability and unit economics matter. With zero per-interaction costs, GladeCore makes it possible to have dozens, or even hundreds of intelligent NPCs constantly interacting with players without breaking your budget.

GladeCore NPCs aren’t just chatbots. They:

• Express emotions

• Showcase unique personalities and behaviors

• Remember conversations and context

• Generate creative, human-like responses

All fully controlled by the data and instructions you provide. GladeCore brings AI characters into your worlds in a way that’s performant, affordable, and truly game-ready.

After purchasing the plugin, please follow the step by step documentation below to integrate it into your Unreal Engine project.

📄 Documentation

🎮 Discord

🌐 Website

📦 Demo

GladeCore is made possible by outstanding developers that have open sourced their work, such as getnamo and Georgy Dev.

Disclaimer: please note that LLMs are bound to hallucinate, and you can't fully prevent hallucinations without RAG and further customization (only available in our Pro subscription, not the basic Fab plugin as is). Please test our free Demo to fully understand the capabilities of our basic plugin.