Recently, several universities in Hong Kong and China have teamed up with Tencent to develop an AI model called GameGen-O, specifically designed for creating simulations in open-world video games. GameGen-O's capabilities extend beyond generating high-quality game content; it also simulates features from various game engines, capable of creating a diverse range of game elements such as character dynamics, complex actions, and various events. Project link: https://gamegen-o.github.io/