On March 20th, the highly anticipated 2024 Global Game Developers Conference (GDC) kicked off with the grand unveiling of Tencent's self-developed game AI engine, GiiNEX. This engine combines generative AI and decision-making AI technologies to provide unprecedented AI solutions throughout the entire lifecycle of a game. GiiNEX's powerful capabilities are mainly derived from the application of technologies such as large-scale generative AI. It caters to various scenarios such as AI NPC, scene production, and content generation, showcasing outstanding AIGC capabilities. Whether it's 2D images, animations, 3D cities, storylines, dialogues, levels, or music, GiiNEX can assist developers in efficiently generating high-quality content. Additionally, GiiNEX cleverly applies decision-making AI technology to game development testing, simulated gameplay, and other scenarios, accelerating game innovation iterations to better meet the personalized needs of players and the ever-changing market trends. During the GDC conference, Tencent also showcased GiiNEX's innovative achievements in game 3D city generation and user-generated content (UGC) level design. This engine not only provides efficient creative support for professional developers but also offers more room for creative expression for ordinary players. It is worth mentioning that GiiNEX has undergone tool-based upgrades in 3D city auto-generation. It provides three major AI tools for city layout, building appearance, and interior mapping, seamlessly integrating with mainstream game engines. This means that game development teams can now conveniently utilize AI technology to enhance the construction of 3D cities, ensuring realistic and diverse generation effects while significantly improving production efficiency. For example, in terms of city layout, developers used to spend at least five days conceptualizing and creating a 25 square kilometer city. However, with GiiNEX's city layout tool, this process now only takes 25 minutes, resulting in a hundredfold increase in efficiency. Similarly, GiiNEX's building appearance tool supports rapid modeling, exhibiting high realism and diversity for both reproducing and generating buildings. The interior mapping tool further enhances the realism of virtual cities by adding rich details to building appearances. In addition to significant progress in game creation scenarios, GiiNEX also demonstrated the application of decision-making AI in intelligent teaching scenarios for MOBA games. Based on reinforcement learning technology, GiiNEX can analyze game situations in real-time, engage in human-machine instruction interactions, and simulate intelligent agents with different skill levels and playstyles. These features not only help new players quickly grasp game skills but also assist game products in expanding into new markets globally. Looking ahead, GiiNEX will continue to push the boundaries of game AI solutions, accelerating the integration and connection between AI and the game industry, as well as the real world. It will provide developers with more tools for unleashing inspiration and intelligent creation, collectively creating a vibrant and dynamic game world. The development team behind GiiNEX comes from Tencent AI Lab's Game AI team, which has achieved remarkable results in both decision-making AI and generative AI. In the future, we look forward to GiiNEX continuously leading the development trend of game AI technology and injecting more innovative vitality into the entire game industry.