The video game, in the digital age conceived as the "ninth art ", is creating a completely new context for architectural design with virtual space. Architecture is no longer subject to the laws of physics, but becomes an “editable game.” In this transition, the architect's role has fundamentally transformed: he or she is no longer just a organizer of space but also an orchestrator of stories, a chromist of emotions, a generator of empathy, and producer expanded-space effects. The most distinctive feature of game architecture lies in its unique narrative expressiveness. Through meticulously designed layouts, atmospheric creation, and path guidance, the virtual space for players achieves a narrative depth unattainable by traditional architecture.