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1,658+ GitHub stars with active community development
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Open source under Apache-2.0 license — free to use and modify
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Integrates LLMs into Unity for AI-driven NPC dialogue and RAG-based conversations
What is LLMUnity? Features and use cases explained.
About LLMUnity
LLMUnity is a Unity package that integrates large language models directly into your game characters. Install the package, add the component to your character, and start creating dynamic conversations, quest-giving NPCs, and AI-driven narratives. It supports major LLM providers (OpenAI, Anthropic, local models) and provides a simple C# API for sending prompts and receiving responses. Best for RPG developers, interactive storytellers, and any Unity project needing intelligent NPCs.
Use Cases
- ▸Create dynamic NPC dialogue that responds to player actions in real-time
- ▸Generate personalized quests and storylines based on player history
- ▸Enable AI-powered game masters for tabletop-style RPGs within Unity
Features
- ✓Integrates multiple LLM providers including OpenAI, Anthropic, and local models
- ✓Provides a simple C# API for sending prompts and receiving responses
- ✓Supports streaming responses for real-time character dialogue
- ✓Includes pre-built UI components for chat windows and dialogue trees
- ✓Works with Unity's animation and audio systems to trigger character reactions
FAQ
Does LLMUnity work with existing Unity projects?▼
Yes, LLMUnity installs as a standard Unity package via the Asset Store or Git URL. It does not require modifying your project structure—just import and add the component to any GameObject.
What LLM providers are supported?▼
LLMUnity supports OpenAI, Anthropic, and any OpenAI-compatible API, including local models via tools like Ollama or LM Studio. You can switch providers with a single setting.
Can I use LLMUnity for free?▼
Yes, you can run local models for free, or use free tiers of major providers. LLMUnity itself is open-source under Apache 2.0.
How to install LLMUnity — setup guide and prerequisites.
Installation
Install LLMUnity to get started:
$git clone https://github.com/undreamai/LLMUnity.git
Or visit the project page for detailed setup instructions.
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