Tencent recently released an autonomous driving simulation software called TAD Sim, which is a cross-platform distributed simulation system specifically designed for the research and validation of intelligent driving systems. TAD Sim is based on Tencent's professional game engine and centimeter-level digital twin 3D reconstruction technology, integrating industrial-grade vehicle dynamics models and physical sensor simulations, as well as data-driven AI traffic flow models, capable of completing closed-loop simulation validation for all modules in real vehicles.