{"repo":"lukehollis/rl-llm-urban-simulations","free":true,"listed":false,"github":"https://github.com/lukehollis/rl-llm-urban-simulations","clone":"git clone https://github.com/lukehollis/rl-llm-urban-simulations.git","description":"Build RL+LLM multi-agent simulations in game engines for realistic human behaviors and studying cities","language":"C#","stars":42,"topics":["civilization","machine-learning","npc","reinforcement-learning","unity","world-models"],"license":null,"category":"machine-learning","readme_excerpt":"RL+LLM City Simulation System This project implements city-scale agent behaviors for game engine environments using a hybrid RL+LLM approach to build realistic simulations. The goal is to be able to more easily have agents available for simulations for a wide range of purposes, especially in urban mobility and transportation planning. I left off Unity development when it became prohibitively expensive, so this codebase may be generally useful for continued work in Unity, or more simplified implementations may be found in my three-mlagents library, based on the Unity-MLAgents library of similar name. https://github.com/user-attachments/assets/d730fd1c-5b08-4699-ad8f-e1a0e8aa44e2 Digital twin of the train system for the Bay Area Rapid Transit Link 21 team. Individual characters can be controlled by RL policy, running inference in engine, and interpret and plan actions with a language model, then visualize their inner state in game. Inspired by the CoALA Cognitive Architectures for Language Agents, the NPCs in the simulations build on a similar version of the language agents but only implement the language model for rational reflection on actions inferred from policy--so an impulse from the policy and then reflection from the language model. https://github.com/user-attachments/assets/c42531ca-64e2-4ea9-92a5-a44fab5b04c9 Networked State Management System Inspired by projects like Photon for Unity networked state management, the state management system orchestrates persistent offl","default_branch":null,"files":null,"tree":[],"storefront":"/r/lukehollis","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/lukehollis/rl-llm-urban-simulations/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}