Question

New Open-Source Project: Local LLM NPCs in Godot 4.x

I’ve been working on a 2D educational game built with Godot 4.x (C#) where NPCs are powered by a local large language model running via Ollama with Google’s Gemma 3n.

✨ Key Features

• Works fully offline or over LAN (no cloud/API calls)
• NPCs use LLMs for dynamic conversations with the player
• Focus on privacy, accessibility, and education
• Built with open-source tools

Gameplay demo video:
Watch on YouTube

Source code:
GitHub repo

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I’d love feedback from fellow devs!
Also curious how others see the potential of local LLMs in game development.

Comments

One fascinating challenge with local LLM-powered NPCs is context management—balancing coherent, memory-aware conversations without overloading limited hardware. I’d love to know how you approached this in your Godot 4.x project.

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Thanks for asking! Currently I keep the full conversation history, but I'm planning to implement a rolling history limited to the last 20 messages to better manage memory on resource-constrained devices.
My main context management right now is through dynamic system prompts that include current learning progress and subject focus, which keeps the AI responses relevant and educational.