This Guidance helps game developers automate the process of creating a non-player character (NPC) for their games and associated infrastructure. It uses Unreal Engine MetaHuman, along with foundation models (FMs), for instance the large language models (LLMs) Claude 2, and Llama 2, to improve NPC conversational skills. This leads to dynamic responses from the NPC that are unique to each player, adding to scripted dialogue. By using the Large Language Model Ops (LLMOps) methodology, this Guidance accelerates prototyping, and delivery time by continually integrating, and deploying the generative AI application, along with fine-tuning the LLMs. All while helping to ensure that the NPC has full access to a secure knowledge base of game lore.