World-building emerges as a transformative paradigm in global design education, fostering interdisciplinary collaboration and holistic perspectives. Rooted in disciplines like speculative fiction and game design, it transcends constructing alternate realities to encompass a comprehensive design process. Designers cultivate critical thinking, systemic understanding, and narrative proficiency through immersive exercises. Leading institutions integrate world-building, preparing students for real-world challenges. In the School of Animation and Games at the China Academy of Art, world-building is an experimental approach to facing traditional education challenges. Nevertheless, it evolves to integrate diverse research methods, challenging stereotypes, and attempting to emphasise solutions to real-world problems through virtual worlds.